MikroElektronika 的 RPR-0521RS 规格书

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Optical Proximity Sensor and

Ambient Light Sensor with IrLED

RPR-0521RS

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●General Description

RPR-0521RS is a module which integrates optical proximity, digital ambient light sensor IC, and infrared LED

(IrLED). Proximity sensor (PS) part detects the human or object approaching by the reflection of IrLED light.

Ambient light sensor (ALS) part detects the wide range of illumination; from the dark environment to the direct

sun light. The illuminant intensity of LCD display and keypad can be adjusted by using RPR-0521RS. It enables

lowering current consumption and/or improving the visibility under the bright environment.

●Features

1) Compatible to I2C bus interface ( f/s mode support )

2) Compatible to 1.8V logic interface

3) Low Current consumption by power down function/mode

4) There are two ALS outputs; peaks of spectrum responses are in visible light (Data0) and in infrared light

(Data1) for calculating illuminance.

5) Correspond to very wide range of light intensity

6) Rejecting 50Hz/60Hz light noise (ALS function)

7) Detection range of proximity sensor is around 1 - 100mm (adjustable by I2C)

8) Built-in current configurable IrLED driver

●Application

Smart phone, Mobile phone, Digital Still Camera, Portable game, Camcoder, PDA, LCD display etc.

●Absolute maximum ratings ( Ta = 25℃ )

●Operating conditions

Parameter Symbol

Limits

Units

VDD Supply Voltage Vddmax 4.5 V

SDA, SCL Terminal Voltage Vsdamax, Vsclmax 4.5 V

LEDA,LDR, INT Terminal Voltage Vledamax, Vldrmax, Vintmax 7 V

Operating Temperature Topr -25～85 ℃

Storage Temperature Tstg -30～85 ℃

INT, SDA Sink Current Imax 7 mA

Parameter Symbol Min. Typ. Max. Units

VDD Supply Voltage Vdd 2.5 3.0 3.6 V

VLEDA Voltage Vleda 2.8 3.0 5.5 V

INT Terminal Voltage Vint －－ 5.5 V

MODEicONTROL(41h)=49h MODEicONTROL(41h)=49h 2 Measuring Condition www ruhm.com @ 201E ROHM Cu. Ltd. AH rights reserved,

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RPR-0521RS

●Electrical characteristics

( VDD= 3.0V, Ta = 25℃, and all registers are default unless otherwise noted. )

Parameter Symbol Min. Typ. Max. Units Conditions

Supply current for ALS Icc1 10 90 300 uA EV = 10 lx*1

MODE_CONTROL(41h) =89h

Supply current for PS Icc2 10 90 200 uA MODE_CONTROL(41h) =49h

Standby mode current Icc3 0.1 1.0 2.0 uA MODE_CONTROL(41h)=00h,

No input light

Calculated Lx Lx 6 10 14 lx

EV = 10 lx*1

MODE_CONTROL(41h)=89h

ALS_PS_CONTROL(42h)=02h

Dark ( 0 lx ) Sensor out in

TYPE0 S0_0 －－ 5 count

No input light

MODE_CONTROL(41h)=89h

ALS_PS_CONTROL(42h)=02h

Dark ( 0 lx ) Sensor out in

TYPE1 S0_1 －－ 5 count

No input light

MODE_CONTROL(41h)= 89h

ALS_PS_CONTROL(42h)=02h

PS sensor out ( d=50mm*2) PS50 48 80 112 count

MODE_CONTROL(41h)=49h

LED current =100mA

PS sensor out

(No proximity object) PS0 －－ 10 count

Ambient irradiance = 0uW/cm2

MODE_CONTROL(41h)=49h

LED current =100mA

ILED pulse duration 1 twILED 1 80 200 300 us MODE_CONTROL(41h)=49h

ILED pulse duration 2 twILED 2 110 330 500 us MODE_CONTROL(41h)=69h

LDR terminal sink current at

LDR terminal voltage = 1.3V ILED 22 25 28 mA ALS_PS_CONTROL

(42h) <1:0> = “00”

INT output 'L' Voltage VINTL 0 0.4 V Iint = 3mA

SCL SDA input 'H' Voltage VIH 1.26 －－ V

SCL SDA input 'L' Voltage VIL －－ 0.54 V

SCL SDA input 'H'/'L'Current IIHL -10 － 10 uA

I2C SDA Output 'L' Voltage VOL 0 － 0.4 V Iol = 3mA

*1 White LED is used as optical source. “Lx” is calculated from ADC count valus.

*2 Measuring Condition

d=50mm

Object

(90% reflective white sheet)

Product

Object: 90% reflective white sheet (50×50mm Kodak Gray Card Plus)

Distance between the object and the product is 50mm. No glass or apertures is above the product.

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RPR-0521RS

●Transmitter Electrical characteristics ( Ta = 25℃, unless otherwise noted. )

Parameter Symbol Min. Typ. Max. Units Conditions

LED Forward Voltage VF － 1.6 1.95 V LED current =100mA

LED Peak Emission Wavelength λp － 940 － nm

● I

2C bus timing characteristics ( VDD= 3.0V, Ta = 25℃, unless otherwise noted. )

Parameter Symbol Min. Typ. Max. Units Conditions

I

2

C SCL Clock Frequency fSCL 0 － 400 kHz

I2C START Condition Hold Time tHD;STA 0.6 －－ us

I2C 'L' Period of the SCL Clock tLOW 1.3 －－ us

I2C 'H' Period of the SCL Clock tHIGH 0.6 －－ us

I2C S START Condition Set up time tSU;STA 0.6 －－ us

I2C Data Hold Time tHD;DAT 0 －－ us

I2C Data Setup Time tSU;DAT 100 －－ ns

I2C STOP Condition Set up Time tSU;STO 0.6 －－ us

I2C Bus Free Time tBUF 1.3 －－ us

I

2

C Data Vaild Time tVD;DAT －－ 0.9 us

I

2

C Data Vaild Acknowledge Time tVD;ACK －－ 0.9 us

I2C bus F/S-mode timing diagram

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RPR-0521RS

● Package outlines

1) Unit: mm

2) Tolerance shall be ±0.2mm unless otherwise noted.

Number Symbol Description

1 VDD Supply Voltage

2 SCL I

2

C Clock, Input

3 GND Ground

4 LEDA LED Supply Voltage

5 LEDK LED Cathode

6 LDR LED Driver

7 INT PS or ALS Interrupt Pin, Open Drain

8 SDA I

2

C Serial Data, Input/Output

(φ1.1)

(0.87)

Emitter

(1.22)

3.94

1.35 (1.67)

Detector

(1.13)

2.36

1-VDD

2-SCL

3-GND

4-LEDA

5-LEDK

7-INT

8-SDA

6-LDR

8765

1234

1.095

0.125

1PIN

1.095

0.845

0.125

0.845

0.425

1.025

0.425

1.815

5U8104

S

tamp (Month, Day)

S

tamp (For the control of our company)

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Datasheet

RPR-0521RS

● Block diagram and block explanation

 I2C Interface

I2C bus interface. f/s mode. 1.8V interface.

 POR

Power on reset function.

 OSC

Internal oscillator.

 Timing Controller

Internal management block for proximity sensor and ambient light sensor.

 PS Control Logic

This block controls proximity sensor ADC.

 LED Pulse Gen

LED current generator. LED current can be adjusted by ALS_PS_CONTROL (42h) register.

 IrLED Driver.

IrLED driver block.

 PD_Visible + Infrared, PD_Infrared

Photo diodes for ambient light sensor.

 16bit ADC

AD converter for ALS.

 ALS Control Logic

This block controls ambient light sensor ADC.

 PD_PS

Photo diode for proximity sensor.

 DC Light Rejection Amp

DC light is rejected in this block.

 Linear ADC

AD converter for proximity sensor.

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RPR-0521RS

● Terminal description

No.

Terminal Name Equivalent Circuit Function

1 VDD

Power supply terminal

2

SCL

I

2

C bus Interface SCL terminal

3

GND

GND terminal

4

LEDA

LED supply voltage

5

LEDK

LED Cathode, Please connect to LDR

PIN when using internal LED driver

circuit.

6

LDR

Nch open drain LED terminal. LED

current and emitting pulse width can be

defined by internal register.

7

INT

Nch open drain output.

Interrupt setting is defined by internal

register.

8

SDA

C bus Interface SDA terminal

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RPR-0521RS

●Structure figure

NO. Name Material

① LSI Si

② Ir LED GaAlAs

③ Au wire Au

④ Insulating bonding paste Epoxy resin

⑤ Conductive bonding paste Ag + Epoxy resin

⑥ Transparent mold resin Epoxy resin

⑦ Light-resistant mold resin Epoxy resin

⑧ PCB Epoxy resin

Cu,Ni,Au(Electrode)

①

⑤

②

⑥

⑦

① ③

④

⑤

⑧

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RPR-0521RS

φ60+1

0

φ180 0

-3

φ13

15.4

±1

● Taping standard

Packaging quantity: 2,500 pcs/reel

1.55

±0.1

9.1

φ1.5

+0.1

0

1.75 ±0.

1pin

4

±0.1

2.75±0.05

12

5.5 ±0.05

φ1.5±0.1

0～0.5

2

±0.05

4.35 ±0.05

Unit:mm

Pull direction

Note）1.Unspecified tolerance shall be ±0.2.

2.Dimensions and marking of reels are in accordance with

JEITA’s standard ET-7103A.

’ RPR—0521RS F' E' \llllllll||||||||||||||||||||||||||||||||||||||||||||||||||| El. x F) 2 5009 CS 1416 008203 ' |||||||||||||||||||||||||||||||||||||||||||||||||||||||||| , "#33 7 - MADE IN CHINA — a 4 00820 S www mhm.com

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RPR-0521RS

● Packaging requirements

1. Packaging

（１）Quantity per reel is 2,500pcs

（２）Each reel are packed in aluminum bag.

The size of aluminum bag is 240(a)×240(b)mm.

（３）Aluminum bag is pressure sealed on all four directions.

2. Label indication

The following information shall be described on a aluminum bag label; ROHM type number, packaging

quantity, and lot number

【Example】

【Example of lot number marking】

１４１６００８２０Ｓ

3. Factory (Country of origin)

・ROHM ELECTRONICS DALIAN CO., LTD. (CHINA)

Factory mark

Bar code

Inspection stamp

FOR ROHM ONLY

Country of origin

MADE IN CHINA

F 2,500pcs 1416 00820S

Packaging

quantity

TYPE NO.

QR code

ｂ

a

Serial number of lot

Manu

f

acture week

Manufacture year

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RPR-0521RS

Attention points in handling

This product is developed as an optical proximity sensor and ambient light sensor with IrLED; suitable for

reflow soldering. Please take care of following points when using this device.

1. Storage

There will be the possibility that the moisture influences the reliability of this product during the reflow

soldering process. Hence, the product is packed in the anti-moisture bag. When using the product,

please keep following conditions.

① Storage condition ・・・・Storage Temperature ： 5 ~ 30℃

Storage Humidity ： less than 70%RH

② Process after opening the bag ・ Please storage the product at the temperature between 5 ～30℃

and the moisture less than 70% RH within 168 hours.

③ Baking (dry) process ・・・If the above conditions aren’t kept, please apply the

baking process. The baking process should be executed

under the reel condition at 60℃±5℃ for 12～24 hours. During

the baking process, the reel and emboss tape should be

handled with care.

2. Designing of PCB

The figure below is the recommended solder pattern. This pattern may need to be adjusted to mounting

conditions and solder paste.

3. Reflow soldering

Number of reflow process shall be less than 2 times. When the second reflow process is performed, the

interval between the first and the second reflow process shall be as short as possible to prevent absorption of

moisture into the resin of the product. Cooling process to the room temperature shall be required between the

first and the second reflow process.

The following temperature condition is recommended for the reflow soldering. We would like you to evaluate

your reflow condition because the condition is affected by the PCB size, the product heat-resistivity or the

mount density

1234

5678

0.72

2.25

3.63

0.85

P0.97×3=2.91

0.25

1°C) Max 250°C [wwthin 1052:) 250 230 AT:1.5~5 “C/sec 40 sec 130 150 90:30 sec AT: 1~ 4 “Else: 100 | $230 52: 50 100 150 200 250 (sec)

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RPR-0521RS

4. Reflow temperature profile

Package surface temperature （℃）

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RPR-0521RS

● Command set

Address TYPE default Register name Register function

40h RW 0Ah SYSTEM_CONTROL System control

41h RW 00h MODE_CONTROL

ALS, PS function setting

42h RW 02h ALS_PS_CONTROL

ALS Gain, PS LED Driver

43h RW 01h PS_CONTROL PS Gain, PS interrupt persistence

44h R 00h PS_DATA_LSBs

PS data low byte

45h R 00h PS_DATA_MSBs

PS data high byte

46h R 00h ALS_DATA0_LSBs

ALS DATA0 low byte

47h R 00h ALS_DATA0_MSBs

ALS DATA0 high byte

48h R 00h ALS_DATA1_LSBs

ALS DATA1 low byte

49h R 00h ALS_DATA1_MSBs

ALS DATA1 high byte

4Ah RW 00h INTERRUPT Interrupt control

4Bh RW FFh PS_TH_LSBs PS upper threshold low byte

4Ch RW 0Fh PS_TH_MSBs PS upper threshold high byte

4Dh RW 00h PS_TL_LSBs PS lower threshold low byte

4Eh RW 00h PS_TL_MSBs PS lower threshold high byte

4Fh RW FFh ALS_DATA0_TH_LSBs

ALS DATA0 upper threshold low byte

50h RW FFh ALS_DATA0_TH_MSBs

ALS DATA0 upper threshold high byte

51h RW 00h ALS_DATA0_TL_LSBs

ALS DATA0 lower threshold low byte

52h RW 00h ALS_DATA0_TL_MSBs

ALS DATA0 lower threshold high byte

53h RW 00h PS_OFFSET_LSBs

PS offset low byte

54h RW 00h PS_OFFSET_MSBs

PS offset high byte

92h R E0h MANUFACT_ID

MANUFACT ID

● SYSTEM_CONTROL ( 40h )

Field Bit TYPE

Description

SW reset 7 RW 0 : initial reset is not started

1 : initial reset is started

INT reset 6 RW 0 : INT pin status is not initialized

1 : INT pin become inactive ( high impedance )

Part ID 5 : 0 R 001010

default value 0Ah

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RPR-0521RS

● MODE_CONTROL ( 41h )

Field Bit TYPE Description

ALS_EN 7

RW 0 : ALS Standby

1 : ALS Enable

PS_EN 6 RW 0 : PS Standby

1 : PS Enable

PS_PULSE 5 RW 0 : PS LED pulse width is typ 200us

1 : PS LED pulse width is typ 330us (PS sensor out is doubled)

PS Operating

mode 4 RW 0 : normal mode

1 : twice measurement mode

Measurement time 3 : 0 RW Shown in table below

*1 Measurement time is 100ms, sleep time is 300ms.

*2 High sensitivity mode, measurement time is 400ms.

*3 Additional software process is necessary. Please refer to P.18

● ALS_PS_CONTROL ( 42h )

Value ALS PS Value ALS PS

0000 standby standby 1000 400ms

*1 50ms

0001 standby 10ms 1001 400ms

*1 100ms

0010 standby 40ms 1010 400ms

*2 standby

0011 standby 100ms 1011 400ms

*2 400ms

0100 standby 400ms 1100 50ms

*3 50ms

0101 100ms 50ms 1101 Forbidden

0110 100ms 100ms 1110 Forbidden

0111 100ms 400ms 1111 Forbidden

Field Bit TYPE Description

Reserved 7 : 6 RW Write 00

ALS DATA0 GAIN 5 : 4 RW

Gain control of ALS DATA 0

00 : x1 Gain mode

01 : x2 Gain mode

10 : x64 Gain mode

11 : x128 Gain mode

ALS DATA1 GAIN 3 : 2 RW

Gain control of ALS DATA 1

00 : x1 Gain mode

01 : x2 Gain mode

10 : x64 Gain mode

11 : x128 Gain mode

LED CURRENT 1 : 0 RW

00 : 25mA

01 : 50mA

10 : 100mA

11 : 200mA

default value 00h

default value 02h

7 5 4 3 2 211 1a 7 s 5 4 3 2 21s 14 13 12 11 1o 7 a 5 4 3 2 21s 14 13 12 11 1o

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RPR-0521RS

● PS_CONTROL ( 43h )

Field Bit TYPE Description

Ambient_Ir_Flag 7 : 6 R

00: Ambient infrared level is low

01: Ambient infrared level is high

11: Ambient infrared level is too high

PS_GAIN 5 : 4 RW

00: PS GAIN ×1

01: PS GAIN ×2

10: PS GAIN ×4

11: Forbidden

PERSISTENCE 3 : 0 RW

PS interrupt persistence setting

0000:Interrupt becomes active at each measurement end

0001:Interrupt status is updated at each measurement end

0010:Interrupt status is updated if two consecutive threshold

judgments are the same

0011 or more: Interrupt status is updated if threshold judgments

are the same over consecutive set times

● PS_DATA_LSBs ( 44h )

Register TYPE 7 6 5 4 3 2 1 0

PS_DATA_LSBs R 27 2

6 2

5 2

4 2

3 2

2 2

1 2

0

default value 00h

● PS_DATA_MSBs ( 45h )

Register TYPE 7 6 5 4 3 2 1 0

PS_DATA_MSBs R 0 0 0 0 211 2

10 2

9 2

8

default value 00h

●ALS_DATA 0_LSBs( 46h )

Register TYPE 7 6 5 4 3 2 1 0

ALS_DATA0_LSBs R 27 2

6 2

5 2

4 2

3 2

2 2

1 2

0

default value 00h

●ALS_DATA 0_MSBs( 47h )

Register TYPE 7 6 5 4 3 2 1 0

ALS_DATA0_MSBs R 215 2

14 2

13 2

12 2

11 2

10 2

9 2

8

default value 00h

●ALS_DATA 1_LSBs( 48h )

Register TYPE 7 6 5 4 3 2 1 0

ALS_DATA1_ LSBs R 27 2

6 2

5 2

4 2

3 2

2 2

1 2

0

default value 00h

●ALS_DATA 1_MSBs( 49h )

Register TYPE 7 6 5 4 3 2 1 0

ALS_DATA1_MSBs R 215 2

14 2

13 2

12 2

11 2

10 2

9 2

8

default value 00h

default value 01h

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RPR-0521RS

● INTERRUPT ( 4Ah )

Field Bit TYPE Description

PS INT STAUTS 7 R 0 : PS interrupt signal inactive

1 : PS interrupt signal active

ALS INT STATUS 6 R 0 : ALS interrupt signal inactive

1 : ALS interrupt signal active

INT MODE 5 : 4 RW

00 : Only PS_TH_H is effective

01 : PS_TH_H and PS_TH_L are effective as hysteresis

10 : PS_TH_H and PS_TH_L are effective as outside detection

11 : Forbidden

INT ASSERT 3 RW

0 : Interrupt output ‘L’ is stable if newer measurement result is

also interrupt active

1 : Interrupt output ‘L’ is de-assert and re-assert if newer

measurement result is also interrupt active

INT LATCH 2 RW

0 : INT pin is latched until INTERRUPT register is read or

initialized

1 : INT pin is updated after each measurement

INT TRIG 1 : 0 RW

00 : INT pin is inactive

01 : Triggered by only PS measurement

10 : Triggered by only ALS measurement

11 : Triggered by PS and ALS measurement

1. In case of PS/ALS outside detection mode, interrupt signal inactive means that measurement result is

within registered threshold level; interrupt signal active means measurement result is out of registered

threshold level.

2. In case of PS hysteresis mode, once interrupt signal becomes active, INT status is kept until mea

surement result

becomes less than PS_TH_L register value.

3. Persistence is for PS only.

4. INT Pin become inactive (high impedance) if INTERRUPT register is read, initialized, or SW reset

is started.

●PS_TH_LSBs ( 4Bh )

default value FFh

● PS_TH_MSBs ( 4Ch )

default value 0Fh

● PS_TL_LSBs ( 4Dh )

default value 00h

● PS_TL_MSBs ( 4Eh )

default value 00h

Register TYPE 7 6 5 4 3 2 1 0

PS_TH_LSBs RW 27 2

6 2

5 2

4 2

3 2

2 2

1 2

0

Register TYPE 7 6 5 4 3 2 1 0

PS_TH_MSBs RW 0 0 0 0 211 2

10 2

9 2

8

Register TYPE 7 6 5 4 3 2 1 0

PS_TL_LSBs RW 27 2

6 2

5 2

4 2

3 2

2 2

1 2

0

Register TYPE 7 6 5 4 3 2 1 0

PS_TL_MSBs RW 0 0 0 0 211 2

10 2

9 2

8

default value 00h

2 1 14 11 m 2 a 21 14 11 m

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RPR-0521RS

●ALS_DATA0_TH_LSBs ( 4Fh )

Register TYPE 7 6 5 4 3 2 1 0

ALS_DATA0_TL_ LSBs RW 27 2

6

2

5 2

4

2

3

2

1

2

0

default value FFh

●ALS_DATA0_TH_MSBs ( 50h )

Register TYPE 7 6 5 4 3 2 1 0

ALS_DATA0_TH_MSBs RW 2

1

5 2

14

2

13

2

12

2

11

2

10

2

9

2

8

default value FFh

● ALS_DATA0_TL_LSBs ( 51h )

Register TYPE 7 6 5 4 3 2 1 0

ALS_DATA0_TH_LSBs RW 27 2

6 2

5 2

4 2

3 2

2 2

1 2

0

default value 00h

● ALS_DATA0_TL_MSBs ( 52h )

Register TYPE 7 6 5 4 3 2 1 0

ALS_DATA0_TL_ MSBs RW 2

1

5 2

14

2

13

2

12

2

11

2

10

2

9

2

8

default value 00h

● PS _OFFSET_LSBs ( 53h )

Register TYPE 7 6 5 4 3 2 1 0

PS_OFFSET_LSBs RW 27 2

6

2

5 2

4

2

3

2

1

2

0

default value 00h

● PS _OFFSET_MSBs ( 54h )

Field Bit TYPE Description

Resereved 7 : 2 R Ignored

PS_OFFSET_MSBs 1 : 0 RW Shown below

default value 00h

Register TYPE 7 6 5 4 3 2 1 0

PS_OFFSET_MSBs RW - - - - - - 2

9

2

8

default value 00h

When changed these registers, PS_DATA (44h,45h) becomes

([PS measured value])- ([PS offset value]) offset value])

● MANUFACT_ID ( 92h )

Field Bit TYPE Description

MANUFACT_ID 7 : 0 R 11100000

default value E0h

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RPR-0521RS

● I

2C bus communication

1) Slave address “0111000” (38h)

2) Main write format

1. Case of “Indicating register address”

ST Slave Address

0111000

W

0 ACK Indicate register address

010XXXXX ACK SP

2. Case of "writing data register after indicating register address"

ST Slave Address

0111000

W

0 ACK Indicate register address

010XXXXX ACK

Data specified at register address

field ACK

ACK

Data specified at register

address

field + N

ACK SP

RPR-0521RS continues to write data with address increments until master issues stop condition.

Write cycle is 40h - 41h - 42h - 43h - 44h - 45h - 46h ……… 53h – 54h - 40h ………

Ex) If register address field is 42h, then RPR-0521RS writes data like below.

42h - 43h - 44h - 45h - 46h ……… 53h - 54h - 40h…….

Register writing continues until master issues stop condition.

3) Main read format

1. Case of “Reading data after indicating register address” (Master issues restart condition)

ST Slave Address

0111000

W

0 ACK Indicate register address

010XXXXX ACK

ST Slave Address

0111000

R

1 ACK Data specified at register address

field ACK

Data specified at register

address field + 1 ACK ACK Data specified at register

address field + N NACK SP

2. Case of “Reading data from specified register address”

ST Slave Address

0111000

R

1 ACK Data specified at register address

field ACK

Data specified at register

address field + 1 ACK ACK Data specified at register

address field + N NACK SP

RPR-0521RS continues to read data from specified address field until master issues stop condition.

Read cycle is 40h - 41h - 42h - 43h - 44h - 45h - 46h ……… 53h - 54h - 40h ………

Ex) If register address field is 53h, then RPR-0521RS reads data like below.

53h - 54h - 40h ………

Register reading continues until master issues stop condition.

※ RPR-0521RS operates as I2C bus slave device.

※ Please refer formality I2C bus specification of NXP semiconductors.

from master to slave from slave to master

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2016.01.28 - Rev.001

Datasheet

RPR-0521RS

●Notice in case of using ALS 50ms measurement mode

At 50msec mode (MODE_CONTROL (41h) <3:0>:"1100"), full scale count of ALS_DATA0 (46h, 47h) and

ALS_DATA1 (48h, 49h) become half of other modes.

ALS_DATA0<15> or ALS_DATA1<15> is a flag indicating the data overflow.

Consequently, additional function as follows is necessary in software at 50msec mode.

if (DATA0<15>==1){DATA0<15:0>=7FFFh}

if (DATA1<15>==1){DATA1<15:0>=7FFFh}

*This function is necessary at 50msec mode only.

*This function must be executed before Lux calculation given

● PS twice measurement mode

RPR-0521RS has two PS operating modes that can be selected by MODE_CONTROL(41h).

At normal mode, PS measurement is done only once in each measurement period.

At twice measurement mode, PS measurement is done twice in each measurement period.

By using twice measurement mode, quicker response of interrupt is available than normal mode

when persistence function is active.

Twice

measurement

mo de

Normal

mo d e

Measurement interval

ノーマルモード

2回測定モード

Twice

mea surement

mode

Normal

mo de

Measurement interval

Datasheet 2ElV 0 AV [1 t2 [1 <—> n—> 4—» Undeﬁned anive Undeﬁned active www mthmDm

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Datasheet

RPR-0521RS

● Notice in case of changing register value

When master changes a value of ALS_PS_CONTROL(42h) (For example, ALS gain), it is necessary to stop the

ALS/PS measurement in progress and re-start the measurement from the beginning (“Interrupt & Re-start”

sequence). The way to “Interrupt & Re-start” is to write some data to MODE CONTROL(41h). By writing both

MODE_CONTROL(41h) and ALS_PS_CONTROL(42h) with address increments access, it is possible to change

the register setting and “Interrupt & Re-start” the measurement at the same time.

● Power on reset function

RPR-0521RS series have power on reset function. By operating this function, all of registers are reset when the

power is supplied.

Please note followings and design the application.

① Power on time : t1

t1 > 2ms

RPR-0521RS series become operational after 2ms since VDD voltage crosses 2.0V from being less

than 0.4V.

② Power off time :t2

t2 > 1ms

Before the power is supplied, VDD voltage should be less than 0.4V at least for 1ms.

* “active

“active” means that RPR-0521RS series are correctly operational.

INT terminal is high impedance when VDD is supplied.

When VDD voltage become less than 2.0V, the power should be supplied again in accordance with the

above sequence.

VCC

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● Interrupt function

Interrupt function compares ALS and PS measurement result to preset interrupt threshold level. Interrupt status

can be monitored by INT pin. Interrupt function is able to be controlled by INTTERRUPT register ( 4Ah ).

Interrupt persistence is defined at PERSIST register ( 43h ). Persistence function is for PS only. There are two

output modes about interrupt function ( latched mode and unlatched mode ).

INT pin is Nch open drain terminal, so this terminal should be pull-up to some kind of voltage source by an

external resistance. INT terminal is high impedance when VCC is supplied.

INT terminal keeps previous state when power down command is sent. So it is recommended to set INT terminal

to high impedance before sending power down command. VDD current (approximately 25uA at VDD=2.5V) is

consumed during INT terminal is active. INT terminal can be changed to high impedance by writing INT reset

command, reading INTERRUPT register ( 4Ah ), or resetting software.

ex1 ) In case of using PS ‘H’ threshold （INTERRUPT register 4Ah<5:4> : ”00”）

In case of unlatched mode, if the measurement value exceeds the PS interrupt threshold ‘H’ value, the interrupt

becomes active. And if the measurement value is below the threshold ‘H’ value, the interrupt becomes inactive.

In case of latched mode, once the interrupt becomes active, it keeps the status until INT reset command is sent

or interrupt register is read.

In case of persistence function is set to active, if the INT is inactive, it keeps inactive status until the measurement

value exceeds the threshold ‘H’ value continuously. If the interrupt is active, it keeps active status until INT reset

command is sent, interrupt register is read, or the measurement value is below threshold ‘H’ value continuously

( case of unlatched mode ).

INT pin reset command is sent or master reads INTERRUPT

Active

time

Unlatched mode

Latched mode

Unlatched mode

Inactive

Sequential measurement result

Persistence = 2

PS interrupt threshold level

ex2 ) In case of using PS hysteresis mode (INTERRUPT register 4Ah<524> : ” 01") Unlatched mode Unlatched mode Persistence = 2 D D PS interrupt PS interrupt Sequen al measurement result time wwwtrohmmom © 2015 ROHM Co.. Ltd. All rights reserved. 21/24 2016.01

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ex2 ) In case of using PS hysteresis mode （INTERRUPT register 4Ah<5:4> : ” 01”）

In case of unlatched mode, if the measurement value exceeds the PS interrupt threshold ‘H’ value, the interrupt

becomes active. And if the measurement value is below the threshold ‘L’ value, the interrupt becomes inactive.

In case of latched mode, once the interrupt becomes active, it keeps the status until INT reset command is sent

or interrupt register is read.

In case of persistence function is set to active, if the INT is inactive, it keeps inactive status until the measurement

value exceeds the threshold ‘H’ value continuously. If the interrupt is active, it keeps active status until INT reset

command is sent, interrupt register is read, or the measurement value is below threshold ‘L’ value continuously.

Persistence = 2

Latched mode

Unlatched mode

time

Sequential measurement result

PS interrupt threshold ‘H’ level

PS interrupt threshold ‘L’ level

INT pin reset command is sent or master reads INTERRUPT

Active

Inactive

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ex3 ) In case of using PS outside threshold mode （INTERRUPT register 4Ah<5:4> : ” 10”）

In case of unlatched mode, if the measurement value is within the range set by PS interrupt threshold ‘H’ and ‘L’

value, the interrupt becomes inactive. And if the measurement value is out of the range set by threshold ‘H’ and

‘L’ value, the interrupt becomes active.

In case of latched mode, once the interrupt becomes active, it keeps active status until INT reset command is

sent, or interrupt register is read.

Unlatched mode

Latched mode

time

Inactive

Sequential measurement result

Active

INT pin reset command is sent or master reads INTERRUPT

PS interrupt threshold ‘H’ level

PS interrupt threshold ‘L’ level

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ex4 ) Ambient light sensor interrupt function

In case of unlatched mode, if the measurement value (ALS_DATA0) is within the range set by ALS interrupt

threshold ‘H’ and ‘L’ value, the interrupt becomes inactive. And if the measurement value (ALS_DATA0) is out of

the range set by threshold ‘H’ and ‘L’ value, the interrupt becomes active.

In case of latched mode, once the interrupt becomes active, it keeps active status until INT reset command is

sent, or interrupt register is read.

INT pin reset command is sent or master reads INTERRUPT

time

Sequential measurement result

Active

A

LS interrupt threshold ‘H’ level

A

LS interrupt threshold ‘L’ level

Inactive

Unlatched mode

Latched mode

Camions for usmg this product

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● Cautions for using this product

1) Absolute Maximum Ratings

An excess in the absolute maximum ratings, such as supply voltage, temperature range of

operating conditions ( Topr ), etc., can break down devices, and make impossible to identify

breaking mode such as short circuit or open circuit. If any special mode exceeding the absolute

maximum ratings is assumed, consideration should be given to take physical safety measures

including the use of fuses.

2) GND voltage

It is necessary to keep the potential of the GND terminal at the minimum potential of all terminals

at any time.

3) Short circuit between terminals and erroneous mounting

In order to mount products on the set PCB, pay thorough attention to the direction and offset of the

products. Erroneous mounting can break down the products. Furthermore, if a short circuit occurs

due to foreign matters entering between terminals or between the terminal and the power supply or

the GND terminal, the products can break down.

4) Operation in strong electromagnetic field

Be noted that using products in the strong electromagnetic field can malfunction.

5) Inspection with set PCB

In order to mount or dismount the set PCB to/from the jig for the inspection process, be sure to turn

OFF the power supply. In addition, pay attention to protection against static electricity.

6) Dust or scratch

Dusts or scratch on the photo detector may affect the optical characteristics. Please handle it with

care.

7) Rush current

When power is supplied to the product, it is possible that the internal logic may be unstable and

rush current may flow instantaneously. Therefore, give special consideration to power coupling capacitance,

power supply, and circuit design.

ROHm SEMICONDUCTOR

R1102

A

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Notice

ROHM Customer Support System

http://www.rohm.com/contact/

Thank you for your accessing to ROHM product informations.

More detail product informations and catalogs are available, please contact us.

Notes

The information contained herein is subject to change without notice.

Before you use our Products, please contact our sales representative

and verify the latest specifica-

tions :

Although ROHM is continuously working to improve product reliability and quality, semicon-

ductors can break down and malfunction due to various factors.

Therefore, in order to prevent personal injury or fire arising from failure, please take safety

measures such as complying with the derating characteristics, implementing redundant and

fire prevention designs, and utilizing backups and fail-safe procedures. ROHM shall have no

responsibility for any damages arising out of the use of our Poducts beyond the rating specified by

ROHM.

Examples of application circuits, circuit constants and any other information contained herein are

provided only to illustrate the standard usage and operations of the Products. The peripheral

conditions must be taken into account when designing circuits for mass production.

The technical information specified herein is intended only to show the typical functions of and

examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly,

any license to use or exercise intellectual property or other rights held by ROHM or any other

parties. ROHM shall have no responsibility whatsoever for any dispute arising out of the use of

such technical information.

The Products are intended for use in general electronic equipment (i.e. AV/OA devices, communi-

cation, consumer systems, gaming/entertainment sets) as well as the applications indicated in

this document.

The Products specified in this document are not designed to be radiation tolerant.

For use of our Products in applications requiring a high degree of reliability (as exemplified

below), please contact and consult with a ROHM representative : transportation equipment (i.e.

cars, ships, trains), primary communication equipment, traffic lights, fire/crime prevention, safety

equipment, medical systems, servers, solar cells, and power transmission systems.

Do not use our Products in applications requiring extremely high reliability, such as aerospace

equipment, nuclear power control systems, and submarine repeaters.

ROHM shall have no responsibility for any damages or injury arising from non-compliance with

the recommended usage conditions and specifications contained herein.

ROHM has used reasonable care to ensur the accuracy of the information contained in this

document. However, ROHM does not warrants that such information is error-free, and ROHM

shall have no responsibility for any damages arising from any inaccuracy or misprint of such

information.

Please use the Products in accordance with any applicable environmental laws and regulations,

such as the RoHS Directive. For more details, including RoHS compatibility, please contact a

ROHM sales office. ROHM shall have no responsibility for any damages or losses resulting

non-compliance with any applicable laws or regulations.

When providing our Products and technologies contained in this document to other countries,

you must abide by the procedures and provisions stipulated in all applicable export laws and

regulations, including without limitation the US Export Administration Regulations and the Foreign

Exchange and Foreign Trade Act.

This document, in part or in whole, may not be reprinted or reproduced without prior consent of

ROHM.

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