AGQ100, AGQ100B Series Datasheet by Artesyn Embedded Power

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BOM:31020701 DATE: 2011-08-2 REV1.2
AGQ100&AVQ100B Series DC/DC
Converter Technical Reference Notes
Industry Standard Quarter Brick: 36~75V Input, 1.2V~5V Single Output
Industry Standard Quarter Brick :
2.28”X 1.45’’ X 0.38’’ (open frame) or
2.28” x 1.45” x 0. 5” (baseplate)
Options
Choice of positive logic or negative logic
for CNT function
Choice of short pins or long pins
Description
The AGQ100&AVQ100B series is a new open frame/baseplate DC-DC converter for optimum
efficiency and power density. The AGQ100&AVQ100B provide up to 25~30A output current in an
industry standard quarter brick, which makes it an ideal choice for small space, high current and low
voltage applications. The AGQ100&AVQ100B series uses an industry standard quarter brick (open
frame/baseplate): 57.9mm % 36.8mm % 9.7/12.7mm (2.28” % 1.45” % 0.38/0.5”) and standard
Features
Delivers up to 20~30A output current
Industry standard quarter brick (open
frame/baseplate): 57.9mm %
%%
% 36.8mm %
%%
%
9.7/12.7mm (2.28” %
%%
% 1.45” %
%%
% 0.38/0.5”)
Basic isolation
Ultra high efficiency
High power density
Low output noise
Industry standard pinout
2:1 wide input voltage of 36-75V
CNT function
Remote sense
Trim function: +10%/-20%
Input under-voltage lockout
Output over-current protection (hiccup)
Output over-voltage protection (hiccup)
Over-temperature protection
RoHS compliant
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pinouts configuration. It includes extensive control and protection features for maximum flexibility
and provides a versatile solution for a whole range of applications with its input voltage range of
36-75 VDC and it can provide 1.2V~5V single output that are isolated from inputs. The converter
can achieve ultra high efficiencies and excellent thermal performance, for most applications a heat
sink is not required. The product features fast dynamic response characteristics and low output
ripple. This high quality and highly reliable product is competitively priced and an ideal solution for
distributed power, telecoms and datacom applications.
Module Numbering
AGQ 100 - 48 S 1V8 P B - 4
Pin length: Omit for 5.8mm±0.5mm (0.228in. ±0.02in.)
-4---4.8mm±0.5mm (0.189in. ±0.02in.)
-6---3.80mm±0.25mm (0.150in. ±0.010in.)
-8---2.80mm±0.25mm (0.110in.±0.010in.)
Baseplated. By default, no baseplate
CNT logic, P---positive logic control,
default is negative logic control
Output rated voltage: 1V2---1.2V, 1V5---1.5V,
1V8---1.8V, 2V5---2.5V, 3V3---3.3V, 05---5V, 12---12V
Output number: S---single output, D---dual output
Input rated voltage: 48V
Input rated voltage: 48V
Rated output power: 100W. The lower output is limited
by its current
Series name
Note:
The following is based on negative logic modules. Positive logic modules are the same with
negative ones except for their pin logic.
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Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage and temperature
conditions. Standard test condition on a single unit is as following:
Tc (board): 25 C
Airflow: 200 LFM
+Vin: 48V ± 2%
-Vin: Return pin for +Vin
CNT: Connect to -Vin for negative logic
Open for positive logic
+Vout: Connect to load
-Vout: Connect to load (return)
+Sense: Connect to +Vout
-Sense: Connect to -Vout
Trim (Vadj): Open
Input Specifications
Parameter Symbol Min Typ Max Unit
Operating Input Voltage VI 36 48 75 VDC
Maximum Input Current
(VI = 0 to VI,max, Io = Io,max) II,max - - 3.2 A
Input Reflected-ripple Current
(5Hz to 20MHz, 12uH source impedance,
TA = 25 ºC)
II - - 20 mAp-p
Supply voltage rejection
(1kHz) - 50 60 - dB
CAUTION: This power module is not internally fused. An input line fuse must always be used.
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Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device.
These are absolute stress ratings only. Functional operation of the device is not implied at these or
any other conditions in excess of those given in the operational sections of the IPS. Exposure to
absolute maximum ratings for extended periods can adversely affect device reliability.
Parameter Device
Symbol
Min Typ Max Unit
Continuous All VI - - 80 Vdc
Input Voltage
Transient (100ms) All VI, trans
- - 100 Vdc
Operating Ambient Temperature
(See Thermal Consideration) All Ta -40 - 85 ºC
Operating Board Temperature All Tc -40 - 110 ºC
Storage Temperature All TSTG -55 - 125 ºC
Operating Humidity All - - - 95 RH%
Basic Input-Output Isolation
(Conditions: 1mA for 60 sec, slew rate of
1500V/10sec)
All - 2000 Vdc
Output Power
1.2V
1.5V
1.8V
3.3V
5V
Po,max - -
36
37.5
45
82.5
100
W
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Output Specifications
All specifications are typical at normal input Vin=48Vdc, rated output current at 25°C ambient
unless otherwise specified.
Parameter Device
Symbol Min Typ
Max Unit
Output Ripple and Noise Peak-to-Peak (5
Hz to 20 MHz)
(Across 1µF @50V, X7R ceramic capacitor
& 470µF @25V LOW ESR Aluminum
capacitor)
1.2V
1.5V
1.8V
3.3V
5V
- -
35
35
40
50
40
- mVp-
p
External Load Capacitance
1.2V
1.5V
1.8V
3.3V
5V
- - -
10,000
10,000
10,000
10,000
5000
µF
Output Voltage Setpoint
(VI = VI,min to VI,max: Io = Io,max; Ta = 25
ºC )
1.2V
1.5V
1.8V
3.3V
5V
Vo,set
1.18
1.48
1.77
3.25
4.95
1.2
1.5
1.8
3.3
5
1.22
1.52
1.83
3.35
5.05
Vdc
Line (Vi,min to Vi,max)
1.2V
1.5V
1.8V
3.3V
5V
- -
1
1
1
1
1
- mV
Load (Io,min to Io,max)
1.2V
1.5V
1.8V
3.3V
5V
- -
1
1
1
1
1
- mV
Output
Regulati
on
Temperature (Tc = -40 ºC to
+100ºC) All - - - 0.02 %Vo/
ºC
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Parameter Device
Symbol Min Typ
Max Unit
Rated Output Current
1.2V,
1.5V
1.8V
3.3V
5V
Io 0 -
30
25
25
25
20
A
Output Current-limit Inception
(Hiccup)
1.2V
1.5V
1.8V
3.3V
5V
Io
33
27.5
28
28
22
-
42
35
35
35
28
A
Efficiency
(VI = VI,nom; 100%Io,max ; TA = 25°C)
1.2V
1.5V
1.8V
3.3V
5V
- -
87
87.5
89
91
93
- %
Efficiency
(VI = VI,nom ; 50%Io,max ; TA = 25°C)
1.2V
1.5V
1.8V
3.3V
5V
- -
86.5
88.5
88.5
92
92
- %
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Output Specifications (Cont)
Parameter Device
Symbol
Min Typ
Max
Unit
25% Ionom step from
50%Ionom
1.2V
1.5V
1.8V
3.3V
5V
-
50
50
45
60
60
mV
Dynamic Response
(Io/t = 1A/10µs,
VI = VI,nom; Ta =
25°C)
Deviation Settling Time
1.2V
1.5V
1.8V
3.3V
5V
-
100
140
70
70
70
- µsec
25% Ionom step from
50%Ionom
1.2V
1.5V
1.8V
3.3V
5V
-
150
150
140
150
160
- mv
Dynamic Response
(Io/t = 1A/1µs; VI
= VI,nom; Ta =
25°C, additional
220µF load
capacitor) Deviation Settling Time
1.2V
1.5V
1.8V
3.3V
5V
-
60
100
60
80
80
- µsec
Turn-On Time
(Io = Io,max ; Vo within 1%) All - - 3 - msec
Output Voltage Overshoot
(Io = Io,max ; TA = 25°C) All - - 0 - %Vo
Switching Frequency All - 310 kHz
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Feature Specifications
Parameter Device
Symbol Min Typ Max Unit
Logic Low All -0.7 - 1.2 V
Enable pin voltage
Logic High All 3.5 - 12 V
Logic Low All - 0.4 - mA
Enable pin current
(leakage current,
@10V) Logic High All - - - µA
Output Voltage Adjustment Range All* - 80 - 110 %Vo
Output Over-voltage
(Hiccup)
1.2V
1.5V
1.8V
3.3V
5V
Voclamp
1.4
1.8
2.2
3.9
6.0
-
2.0
2.5
3.0
5.0
7.5
V
Over-temperature Protection
(Auto-recovery) All 125 C
Turn-on Point All - 31 34 36 V
Under-voltage
Lockout Turn-off Point All - 30 33 35 V
Isolation Capacitance All - - 3000 - PF
Isolation Resistance All - 10 - - M
Calculated MTBF
(Io = Io,max ; Tc = 25°C) All - - 2,500,0
00 - Hours
Weight All - - - 30 g (oz.)
* Output Voltage Adjustment Rang of 12V module is 90% to 110%.
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Characteristic Curves
0.6
0.7
0.8
0.9
1
0 5 10 15 20 25 30
Output current(A)
Effiency
Vin=36V
Vin=48V
Vin=75V
0.6
0.7
0.8
0.9
1
0 5 10 15 20 25
Output current(A)
Effiency
Vin=36V
Vin=48V
Vin=75V
Fig. 1 Typical efficiency of AGQ100-48S1V2 Fig. 2 Typical efficiency of AGQ100-48S1V5
0.6
0.7
0.8
0.9
1
0 5 10 15 20 25 30
Output current(A)
Effic ienc y
Vin=75V
Vin=48V
Vin=36V
0.7
0.8
0.9
1
0 5 10 15 20 25
Output current(A)
Effiency
Vin=36V
Vin=48V
Vin=75V
Fig. 3 Typical efficiency of AGQ100-48S1V8 Fig. 4 Typical efficiency of AVQ100B-48S3V3
70
75
80
85
90
95
0 5 10 15 20
Output current(A)
Effiency(%)
Vin=36V
Vin=48V
Vin=75V
Fig. 5 Typical efficiency of AVQ100B-48S05
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0
0.2
0.4
0.6
0.8
1
1.2
1.4
0 5 10 15 20 25 30 35 40 45
Output Current (A)
Output Voltage (V)
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
0 5 10 15 20 25 30 35
Output Current (A)
Output Voltage (V)
Fig. 6 Typical over-current of AGQ100-48S1V2 Fig. 7 Typical over-current of AGQ100-48S1V5
0
0.4
0.8
1.2
1.6
2
0 5 10 15 20 25 30 35
Output Current (A)
Output Voltage (V)
0
0.5
1
1.5
2
2.5
3
3.5
0 5 10 15 20 25 30 35
Output Current (A)
Output Voltage (V)
Fig. 8 Typical over-current of AGQ100-48S1V8 Fig. 9 Typical over-current of AVQ100B-48S3V3
0
1
2
3
4
5
0 5 10 15 20 25 30
Output Current (A)
Output Voltage (V)
Fig. 10 Typical over-current of AVQ100B-48S05
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0
1
2
3
4
5
6
0 5 10 15 20 25 30
Load(A)
Dissipation(W)
Vin=36V
Vin=48V
Vin=75V
0
1
2
3
4
5
6
0 5 10 15 20 25
Load(A)
Dissipation(W)
Vin=36V
Vin=48V
Vin=75V
Fig. 11 Typical power dissipation curve Fig. 12 Typical power dissipation curve
of AGQ100-48S1V2 of AGQ100-48S1V5
1
2
3
4
5
6
7
0 5 10 15 20 25
Load(A)
Dissipation(W)
Vin=36V
Vin=48V
Vin=75V
2
3
4
5
6
7
8
9
10
0 5 10 15 20 25
Load(A)
Dissipation(W)
Vin=36V
Vin=48V
Vin=75V
Fig. 13 Typical power dissipation curve Fig. 14 Typical power dissipation curve
of AGQ100-48S1V8 of AVQ100B-48S3V3
0
1
2
3
4
5
6
7
8
0 5 10 15 20
Load(A)
Dissipation(W)
Vin=36V
Vin=48V
Vin=75V
Fig. 15 Typical power dissipation curve
of AVQ100B-48S05
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Fig. 16 Typical output ripple voltage AGQ100 Fig. 17 Typical output ripple voltage AGQ100
-48S1V2, room temperature, Io = Io,max -48S1V5, room temperature, Io = Io,max
Fig. 18 Typical output ripple voltage AGQ100 Fig. 19 Typical output ripple voltage AVQ100B
-48S1V8, room temperature, Io = Io,max -48S3V3, room temperature, Io = Io,max
Fig. 20 Typical output ripple voltage AVQ100B
-48S05, room temperature, Io = Io,max
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Fig.21 Typical start-up from power on of Fig.22 Typical start-up from CNT on of
AGQ100-48S1V2 AGQ100-48S1V2
Fig.23 Typical start-up from power on of Fig.24 Typical start-up from CNT on of
AGQ100-48S1V5 AGQ100-48S1V5
Fig.25 Typical start-up from power on of Fig.26 Typical start-up from CNT on of
AGQ100-48S1V8 AGQ100-48S1V8
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Fig.27 Typical start-up from power on of Fig.28 Typical start-up from CNT on of
AVQ100B-48S3V3 AVQ100B-48S3V3
Fig.29 Typical start-up from power on of Fig.30 Typical start-up from CNT on of
AVQ100B-48S05 AVQ100B-48S05
Fig.31 Typical transient response to step Fig.32 Typical transient response to step
decrease in load from 50% to 25%, room decrease in load from 50% to 25%, room
temperature, 48Vdc input (Io/t = 0.1A/1µs) temperature, 48Vdc input (Io/t = 1A/1µs)
of AGQ100-48S1V2 of AGQ100-48S1V2
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Fig.33 Typical transient response to step Fig.34 Typical transient response to step
decrease in load from 50% to 25%, room decrease in load from 50% to 25%, room
temperature, 48Vdc input (Io/t = 0.1A/1µs) temperature, 48Vdc input (Io/t = 1A/1µs)
of AGQ100-48S1V5 of AGQ100-48S1V5
Fig.35 Typical transient response to step Fig.36 Typical transient response to step
decrease in load from 50% to 25%, room decrease in load from 50% to 25%, room
temperature, 48Vdc input (Io/t = 0.1A/1µs) temperature, 48Vdc input (Io/t = 1A/1µs)
of AGQ100-48S1V8 of AGQ100-48S1V8
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Fig.37 Typical transient response to step Fig.38 Typical transient response to step
decrease in load from 50% to 25%, room decrease in load from 50% to 25%, room
temperature, 48Vdc input (Io/t = 0.1A/1µs) temperature, 48Vdc input (Io/t = 1A/1µs)
of AVQ100B-48S3V3 of AVQ100B-48S3V3
Fig.39 Typical transient response to step Fig.40 Typical transient response to step
decrease in load from 50% to 25%, room decrease in load from 50% to 25%, room
temperature, 48Vdc input (Io/t = 0.1A/1µs) temperature, 48Vdc input (Io/t = 1A/1µs)
of AVQ100B-48S05 of AVQ100B-48S05
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0
5
10
15
20
25
30
25 40 55 70 85
TEMPERATURE, Ta ()
Output Current Io (A)
2m/s
1.5m/s
1m/s
0.5m/s
0m/s
0
5
10
15
20
25
30
25 40 55 70 85
TEMPERATURETa ()
Output Current Io (A)
2m/s
1.5m/s
1m/s
0.5m/s
0m/s
Fig.41 Output power derating AGQ100-48S1V2 Fig.42 Output power derating AGQ100-48S1V2
(airflow direction from output to input, (airflow direction from output to input,
open frame) baseplate)
0
5
10
15
20
25
25 40 55 70 85
TEMPERATURE, Ta ()
Output Current Io (A)
2m/s
1.5m/s
1m/s
0.5m/s
0m/s
0
5
10
15
20
25
25 40 55 70 85
TEMPERATURE, Ta ()
Output Current Io (A)
2m/s
1.5m/s
1m/s
0.5m/s
0m/s
Fig.43 Output power derating AGQ100-48S1V5 Fig.44 Output power derating AGQ100-48S1V5
(airflow direction from output to input, (airflow direction from output to input,
open frame) baseplate)
0
5
10
15
20
25
30
25 40 55 70 85
Temperature()
Output Current(A)
2.0m /s
1.5m /s
1.0m /s
0.5m /s
0m /s
0
5
10
15
20
25
30
25 40 55 70 85
Temperature()
Output Current(A)
2.0m/s
1.5m/s
1.0m/s
0.5m/s
0m /s
Fig.45 Output power derating AGQ100-48S1V8 Fig.46 Output power derating AGQ100-48S1V8
(airflow direction from output to input, (airflow direction from output to input,
open frame) baseplate)
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0
5
10
15
20
25
25 40 55 70 85
TEMPERATURE, Ta ()
Output Current Io (A)
2m/s
1.5m/s
1m/s
0.5m/s
0m/s
0
5
10
15
20
25
25 40 55 70 85
TEMPERATURE, Ta ()
Output Current Io (A)
2m/s
1.5m/s
1m/s
0.5m/s
0m/s
Fig.47 Output power derating AVQ100B-48S3V3 Fig.48 Output power derating AVQ100B-48S3V3
(airflow direction from output to input, (airflow direction from output to input,
open frame) baseplate)
0
5
10
15
20
25 40 55 70 85
TEMPERATURE, Ta ()
Output Current Io (A)
2m/s
1.5m/s
1m/s
0.5m/s
0m/s
0
5
10
15
20
25 40 55 70 85
TEMPERATURE, Ta ()
Output Current Io (A)
2m/s
1.5m/s
1m/s
0.5m/s
0m/s
Fig.49 Output power derating AVQ100B-48S05 Fig.50 Output power derating AVQ100B-48S05
(airflow direction from output to input, (airflow direction from output to input,
open frame) baseplate)
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Feature Description
CNT Function
The converter is equipped with a primary
ON/OFF pin used to remotely turn converter on
or off via a system signal. Two CNT logic
options are available. For the positive logic
model a system logic low signal will turn the
unit off. For the negative logic model a system
logic high signal will turn the converter off. For
negative logic models where no control signal
will be used the ON/OFF pin should be
connected directly to -Vin to ensure proper
operation. For positive logic models where no
control signal will be used the ON/OFF pin
should be left unconnected.
The following figure shows a few simple CNT
circuits.
Fig. 51 CNT Circuit
Remote Sense
The converter can remotely sense both lines of
its output which moves the effective output
voltage regulation point from the output
terminals of the unit to the point of connection
of the remote sense pins. The sense leads
conduct very little current compared with the
power leads and therefore provide a more
accurate indication of load voltage for
regulation purposes. This feature automatically
adjusts the real output voltage of the converter
in order to compensate for voltage drops in
distribution and maintain a regulated voltage at
the point of load.
When the converter is supporting loads far
away, or is used with undersized cabling,
significant voltage drop can occur at the load.
The best defense against such drops is to
locate the load close to the converter and to
ensure adequately sized cable is used. When
this is not possible, the converter can
compensate for a drop of up to 10%Vo, through
use of the sense leads.
When used, the + Sense and - Sense leads
should be connected from the converter to the
point of load as shown in Figure 52, using
twisted pair wire, or parallel pattern to reduce
noise effect. The converter will then regulate its
output voltage at the point where the leads are
connected. Care should be taken not to
reverse the sense leads. If reversed, the
converter will trigger OVP protection.
When not used, the +Sense lead must be
connected with +Vo, and -Sense with -Vo. If
+Sense and –Sense are not connected the
output voltage could drift beyond the nominal
range. Although the output voltage can be
increased by both the remote sense and by the
trim, the maximum increase for the output
voltage is not the sum of both. The maximum
increase is the larger of either the remote
sense or the trim.
Note that at elevated output voltages the
maximum power rating of the module remains
the same, and the output current capability will
decrease correspondingly.
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Fig. 52 Sense connections
Trim
The +Vo output voltage of the
AGQ100&AVQ100B can be trimmed using the
trim pin provided. Applying a resistor to the trim
pin through a voltage divider from the output
will cause the +Vo output to increase by up to
10% or decrease by up to 20%. Trimming up by
more than 10% of the nominal output may
activate the OVP circuit or damage the
converter. Trimming down more than 20% can
cause the converter to regulate improperly. If
the trim pin is not needed, it should be left
open.
Trim up
With an external resistor connected between
the TRIM and +SENSE pins, the output voltage
set point increases (see Figure 53).
Fig. 53 Trim up circuit
The following equation determines the required
external-resistor value to obtain a percentage
output voltage change of %.
For 1.2V
(
)
)(2.10
510
6
.
0
1001.5
×
+
×
×
=
K
V
R
nom
upadj
For others
(
)
)(2.10
510
225
.
1
1001.5
×
+××
=
K
V
R
nom
upadj
Note: = (Vo-Vnom) % 100/Vnom
For example: 1.8V to trim up the output to
1.98V,
△=(1.98-1.8) % 100/1.8=10
(
)
)(2.10
10
510
10
225
.
1
101008.11.5
×
+
×
×
=
KR
upadj
)(23.21 =
KR
upadj
Trim down
With an external resistor between the TRIM
and -SENSE pins, the output voltage set point
decreases (see Figure 54).
Fig. 54 Trim down circuit
The following equation determines the required
external-resistor value to obtain a percentage
output voltage change of %.
)(2.10
510
=
KR
downadj
Note: = (Vnom-Vo) % 100/Vnom
For example: 1.8V to trim down the output to
1.62V,
=(1.8-1.62) % 100/1.8=10
)(2.10
10
510 =
KR
downadj
)(8.40
=
KR
downadj
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Although the output voltage can be increased
by both the remote sense and by the trim, the
maximum increase for the output voltage is not
the sum of both. The maximum increase is the
larger of either the remote sense or the trim.
Note that at elevated output voltages the
maximum power rating of the module remains
the same, and the output current capability will
decrease correspondingly.
Minimum Load Requirements
There is no minimum load requirement for the
AGQ100&AVQ100B series module.
Output Capacitance
High output current transient rate of change
(high di/dt) loads may require high values of
output capacitance to supply the instantaneous
energy requirement to the load. To minimize
the output voltage transient drop during this
transient, low ESR (Equivalent Series
Resistance) capacitors may be required, since
a high ESR will produce a correspondingly
higher voltage drop during the current
transient.
When the load is sensitive to ripple and noise,
an output filter can be added to minimize the
effects. A simple output filter to reduce output
ripple and noise can be made by connecting a
capacitor C1 across the output as shown in
Figure 55. The recommended value for the
output capacitor C1 is 470μF.
Fig. 55 Output ripple filter
Fig. 56 Output ripple filter for a distant load
Extra care should be taken when long leads or
traces are used to provide power to the load.
Long lead lengths increase the chance for
noise to appear on the lines. Under these
conditions C1 can be added across the load,
with a 1μF ceramic capacitor C2 in parallel
generally as shown in Figure 56.
Decoupling
Noise on the power distribution system is not
always created by the converter. High speed
analog or digital loads with dynamic power
demands can cause noise to cross the power
inductor back onto the input lines. Noise can be
reduced by decoupling the load. In most cases,
connecting a 10 μF tantalum or ceramic
capacitor in parallel with a 0.1 μF ceramic
capacitor across the load will decouple it. The
capacitors should be connected as close to the
load as possible.
Ground Loops
Ground loops occur when different circuits are
given multiple paths to common or earth
ground, as shown in Figure 57. Multiple ground
points have slightly different potential and
cause current flow through the circuit from one
point to another. This can result in additional
noise in all the circuits. To eliminate the
problem, circuits should be designed with a
single ground connection as shown in Figure
58.
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Fig. 57 Ground loops
Fig. 58 Single point ground
Output Over-current Protection
AGQ100&AVQ100B DC/DC converters feature
foldback current limiting as part of their OCP
(Over-current Protection) circuits. When output
current exceeds 110 to 140% of rated current,
such as during a short circuit condition, the
module will shut down and then enter a “hiccup
mode” where it repeatedly turn on and off at a
100Hz(nominal) frequency with a 5% duty
cycle until the short circuit condition is removed.
This prevents excessive heating of the
converter or the load board.
Output Over-Voltage Protection
The output over-voltage protection consists of
circuitry that monitors the voltage on the output
terminals. If the voltage on the output terminals
exceeds the over voltage protection threshold,
the module will shut down and then enter a
“hiccup mode” where it repeatedly turn on and
off at a 100Hz(nominal) frequency with a 40%
duty cycle until the over-voltage condition is
removed. This prevents damage to the load
circuit.
Over-Temperature Protection
The module feature an over-temperature
protection circuit to safeguard against thermal
damage. The module will work on intermittent
mode when the maximum device reference
temperature is exceeded. When the
over-temperature condition is removed, the
converter will automatically restart.
Input Reverse Voltage Protection
Under installation and cabling conditions where
reverse polarity across the input may occur,
reverse polarity protection is recommended.
Protection can easily be provided as shown in
Figure 59. In both cases the diode used is
rated for 10A/100V. Placing the diode across
the inputs rather than in-line with the input
offers an advantage in that the diode only
conducts in a reverse polarity condition, which
increases circuit efficiency and thermal
performance.
Fig. 59 Reverse polarity protection circuit
Safety Consideration
For safety-agency approval of the system in
which the power module is used, the power
module must be installed in compliance with
the spacing and separation requirements of the
end-use safety agency standard, i.e., UL1950,
CSA C22.2 No. 950-95, and EN60950. The
AGQ100&AVQ100B input-to-output isolation is
a basic insulation. The DC/DC power module
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should be installed in end-use equipment, in
compliance with the requirements of the
ultimate application, and is intended to be
supplied by an isolated secondary circuit.
When the supply to the DC/DC power module
meets all the requirements for SELV (<60Vdc),
the output is considered to remain within SELV
limits (level 3). If connected to a 60Vdc power
system, double or reinforced insulation must be
provided in the power supply that isolates the
input from any hazardous voltages, including
the ac mains. One input pin and one output pin
are to be grounded or both the input and output
pins are to be kept floating. Single fault testing
in the power supply must be performed in
combination with the DC/DC power module to
demonstrate that the output meets the
requirement for SELV. The input pins of the
module are not operator accessible.
Note: Do not ground either of the input pins of
the module, without grounding one of the
output pins. This may allow a non-SELV
voltage to appear between the output pin and
ground.
Fusing
The AGQ100&AVQ100B module have no
internal fuse. An external fuse must always be
employed! To meet international safety
requirements, a 250 Volt rated fuse should be
used. If one of the input lines is connected to
chassis ground, then the fuse must be placed
in the other input line.
Standard safety agency regulations require
input fusing. Recommended ratings is 5A for
the AGQ100&AVQ100B.
Note: The fuse is fast blow type
.
Typical Application
LOAD
+VIN
-VIN
CNT1
+VOUT
-VOUT
+SENSE
-SENSE
TRM
F1
Cin
Vin
Co1 Co2
S1
Fig. 60 Typical application
F1: Fuse*: 5A fuse (fast blow type ) .
Cin: Recommended input capacitor,
100µF/100V high frequency low ESR
electrolytic type capacitor.
Co1: Recommended 1µF /25V ceramic
capacitor
Co2: Recommended output capacitor
Recommended 1,000µF/25V high frequency
low ESR electrolytic type capacitor.
If Ta<-5 : use 220µF tantalum capacitor
parallel with Co2.
Note: The AGQ100&AVQ100B module cannot
be used in parallel mode directly
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EMC
For conditions where EMI is a concern, a different input filter can be used. Figure 61 shows a filter
designed to reduce EMI effects for AGQ100&AVQ100B
-S
Cx
-Vout
+Vin
L2
1
5
4
8
C2
-Vin
Trim
+Vin
-Vin
Cy1
DC-DC
.
Cy2
C1
-Vout
PE
CNT
.
.
.
+S
FM100
L1
1
5
4
8
+Vout
+Vout
Figure 61 EMI reduction filter
Recommended values:
Component Value/Rating Type
C1 100µF/100V Aluminium electrolytic capacitor
C2 220µF/25V Aluminium electrolytic capacitor, low ESR
L1 150µH Magnetic material: R10k
dimension: T8.89×3.81×4.63 mm
L2 480µH Magnetic material: R10k
dimension: T9.53×4.75×4.3 mm
Cx 4.7µF/100V Ceramic chip capacitor
Cy1 4700pF/1500V Leaded multilayer ceramic capacitor
FM100
Emerson Filter
converter
Cy2 4700pF/1500V Leaded multilayer ceramic capacitor
Thermal Consideration
Thermal management is an important part of the
system design. AVGQ100&AVQ100B series
module have ultra high efficiency at full load,
and the module exhibit good performance during
pro-longed exposure to high temperatures.
However, to ensure proper and reliable
operation, sufficient cooling of the power module
and power derating is needed over the entire
temperature range of the module.
Considerations includes ambient temperature,
airflow, module power derating.
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Measuring thermal reference point of the
module as the method shown in Fig.62 can
verify the proper cooling.
Fig.62 Temperature measurement location
Module Derating
When 48V input, 55 ambient temperature,
and 200LFM airflow, AVGQ100&AVQ100B
series are rated for full power. For operation
above ambient temperature of 55 , output
power must be derated as shown in Fig.41 to 50,
meantime, airflow at least 200LFM over the
converter must be provided to make the module
working properly.
It is recommended that the temperature of the
thermal reference point be measured using a
thermocouple. In order to operate inside the
derating curves as shown Fig. 41 to
50,temperature on the PCB at the thermocouple
location shown in Fig. 62 for a open frame
module should not exceed 120 ℃ ,and the
temperature on the center of the base for a
baseplate module should not exceed 110 .
The use of output power derating curve is shown
in the following example.
Example
What is the minimum airflow necessary for a
open frame AVQ100B-48S3V3 operating at VI =
48 V, an output current of 25A, and a maximum
ambient temperature of 55
Solution
Given: VI = 48V, Io = 25A, Ta = 55
Determine airflow (v) (use Fig.47): v = 1m/sec.
(200ft./min.)
Mechanical Considerations
Installation
Although AGQ100&AVQ100B converter can be
mounted in any orientation, free air-flowing must
be taken. Normally power components are
always put at the end of the airflow path or have
the separate airflow paths. This can keep other
system equipment cooler and increase
component life spans.
Note:
1. There should be no electrical connection
between the case and the PE or any module
ports.
2. The fixing screw of the heatsink should not be
too long. Please refer to the mechanical chart for
detail.
Soldering
AGQ&AVQ100B converter are compatible with
standard wave soldering techniques. When
wave soldering, the converter pins should be
preheated for 20-30 seconds at 110 , and
wave soldered at 260 for less than 10
seconds.
When hand soldering, the iron temperature
should be maintained at 425 and applied to
the converter pins for less than 5 seconds.
Longer exposure can cause internal damage to
the converter. Cleaning can be performed with
cleaning solvent IPA or with water.
Assembly
The maximum length of the screw driven into the
heat-sink is 3.3mm.
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Mechanical Chart
(Top & Side View)
Open frame
4-Φ4.32
6-Φ1
26.16
15.24
7.62
47.24
50.8
57.9
9.7
7.62
15.24
36.8
2-Φ1.5
TOLERANCE: X.Xmm±0.5mm
X.XXmm±0.25mm
Pin Length Option
Device Code
Suffix
-4
-6
-8
NONE
L
4.8mm±0.5mm
3.8mm±0.5mm
2.8mm±0.25mm
5.8mm±0.5mm
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Baseplate
4-Φ4.32
TOLERANCE: X.Xmm±0.5mm
X.XXmm±0.25mm
6-Φ1
26.16
15.24
7.62
47.24
50.8
57.9
7.62
15.24
36.8
2-Φ1.5
12.7
4-Φ3.0
Pin Length Option
Device Code
Suffix
-4
-6
-8
NONE
L
4.8mm±0.5mm
3.8mm±0.5mm
2.8mm±0.25mm
5.8mm±0.5mm
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L
1
2
Bottom view
3
7.62[0.300]
2-Ø1.5±0.1
8
7
6
4
5
57.9 [2.280]
50.8[2.000]
36.8 [1.449]
61.0±0.1
6-Ø2.0±0.1
Load board
Unit: mm [inch] Bottom view: pin on upside
Tolerance: X.Xmm ± 0.5mm [X.X in. ± 0.02in.]
X.XXmm ± 0.25mm [X.XX in. ± 0.01in.]
26.2[1.031]
47.3[1.862]
Side view
0.3[0.012]MIN
5.6[0.220]
1.5[0.059]
12.7[0.500]
15.24 [0.600]
15.24 [0.600]
Top view
26.2 [1.031]
4-Ø3.2
47.3[1.862]
Fig.63: AVQ100B-48S05/3V3PB-6L through holes baseplate profile
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Pins definition
PIN NO. FUNCTION PIN NO. FUNCTION
1 Vin(+) 4 Vo(-)
2 CNT 5 -SENSE
3 Vin(-) 6 TRIM
7 +SENSE
8 Vo(+)
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Ordering Information
Ripple and Noise
(mV pp)
Model Number
Input
Voltage
(V)
Output
Voltage
(V)
Output
Current
(A) Typ.
Efficiency
(%)
Typ.
AGQ100-48S1V2 36~75 1.2 30 35 87
AGQ100-48S1V5 36~75 1.5 25 35 87.5
AGQ100-48S1V8 36~75 1.8 25 40 89
AVQ100B-48S3V3 36~75 3.3 25 50 91
AVQ100B-48S05 36~75 5.0 30 40 93
有毒有害物质或元素标识表
有毒有害物质或元素
六价铬 多溴联苯 多溴联苯醚
部件
名称 Pb Hg Cd Cr
6
PBB PBDE
制成板
○:表示该有毒有害物质在该部件所有均质材料中的含量在 SJ/T-11363-2006 规定的限量要求以下。
×:表示该有毒有害物质至少在该部件的某一均质材料中的含量超出 SJ/T-11363-2006 规定的限量要求
艾默生网络能源有限公司一直致力于设计和制造环保的产品,我们会通过持续的研究来减少和消除产品中的有毒有害
物质。以下部件或应用中含有有毒有害物质是限于目前的技术水平无法实现可靠的替代或者没有成熟的解决方案:
1
焊料(含器件的高温焊料)中含有铅
2
电子器件的玻璃中含有
3
插针的铜合金中含有铅
适用范围:AGQ100&AVQ100B 全系列

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