HEDS-5700 Series Datasheet by Broadcom Limited

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Features
Two channel quadrature output with optional index
pulse
Available with or without static drag for manual or
mechanized operation
High resolution: up to 512 CPR
Long rotational life: >1 million revolutions
–20 to 85°C operating temperature range
TTL quadrature output
Single 5 V supply
Available with color coded leads
*
Package Dimensions
*Note: For the HEDS-5700, Pin #2 is a No Connect.
For the HEDS-5740, Pin #2 is Channel I, the index output.
Description
The HEDS-5700 series is a family of low cost, high
performance, optical incremental encoders with
mounted shafts and bushings. The HEDS-5700 is
available with tactile feedback for hand operated
panel mount applications, or with a free spinning
shaft for applications requiring a pre-assembled
encoder for position sensing.
The encoder contains a collimated LED light source
and special detector circuit which allows for high
resolution, excellent encoding performance, long
rotational life, and increased reliability. The unit
outputs two digital waveforms which are 90 degrees
out of phase to provide position and direction
information. The HEDS-5740 Series provides a third
Index Channel.
THREAD 3/8-32
NUT 3/8-32 x 7/16"
OPTIONAL WIRING
COLOR CODE TABLE
COLOR
WHITE
BROWN
RED
BLACK
BLUE
(THREE
CHANNEL)
OUTPUT
A
B
VCC
GND
I
HEDS-5700 Series
Panel Mount Optical Encoders
Data Sheet
2
The HEDS-5700 is quickly and
easily mounted to a front panel
using the threaded bushing, or it
can be directly coupled to a
motor shaft (or gear train) for
position sensing applications.
Applications
The HEDS-5700 with the static
drag option is best suited for
applications requiring digital
information from a manually
operated knob. Typical front
panel applications include
instruments, CAD/CAM systems,
and audio/video control boards.
The HEDS-5700 without static
drag (free spinning) is best
suited for low speed,
mechanized operations. Typical
applications are copiers, X-Y
tables, and assembly line
equipment.
Note: Avago Technologies
encoders are not recommended
for use in safety critical
applications. Eg. ABS braking
systems, power steering, life
support systems and critical
care medical equipment. Please
contact sales representative if
more clarification is needed.
Absolute Maximum Ratings
Parameter Symbol Min. Max. Units Notes
Storage Temperature Ts-40 +85 °C
Operating Temperature Ta-20 +85 °C
Vibration 20 g 20 Hz - 2 kHz
Supply Voltage VCC -0.5 7 V
Output Voltage VO-0.5 VCC V
Output Current per Channel IO-1 5 mA
Shaft Load – Axial 1 lb
– Radial 1
Recommended Operating Conditions
Parameter Symbol Min. Max. Units Notes
Temperature T -20 +85 °CNoncondensing Atmosphere
Supply Voltage VCC 4.5 5.5 V Ripple <100 mVp-p
Rotational Speed – Drag 300 RPM
– Free Spinning 2000
Electrical Characteristics Over Recommended Operating Range, Typical at 25°C
Parameter Symbol Min. Typ. Max. Units Notes
Supply Current ICC 17 40 mA Two Channel
57 85 Three Channel
High Level Output Voltage VOH 2.4 V IOH = -40 µA Max.
Low Level Output Voltage VOL 0.4 V IOL = 3.2 mA
Note: If more source current is required, use a 3.2 K pullup resistor on each output.
—fl£
3
HEDS-57
Shaft Configuration
0 - 1/4" dia. with no flat
1 - 6 mm dia. with no flat
2 - 1/4" dia. with flat
Drag Option
0 - Free Spinning
1 - Static Drag
Resolutions
(Cycles Per Revolution)
HEDS-570X 2 Channel
K- 96 CPR G - 360 CPR
C - 100 CPR A - 500 CPR
F- 256 CPR I - 512 CPR
HEDS-574X Three Channel*
A- 500 CPR
Outputs
0 - 2 Channel
4 - 3 Channel
Mechanical
Configuration
0 - Pins
1 - 6" Coded Leads
Output Waveforms
Ordering Information
360 ± 5.5
180 ± 45
S1 S2 S3 S4 90 ± 45 TYPICAL
90 ± 45
CH A
CH B
CH I
NOTE:
ALL VALUES ARE IN ELECTRICAL DEGREES, WHERE 360° e = 1 CYCLE OF RESOLUTION.
ERRORS ARE WORST CASE OVER ONE REVOLUTION.
CH B LEADS CH A FOR COUNTERCLOCKWISE ROTATION.
CH A LEADS CH B FOR CLOCKWISE ROTATION.
*Please contact factory for other resolutions.
Mechanical Characteristics
Parameter Min. Typ. Max. Units Notes
Starting Torque – Static Drag 0.47 oz in
– Free Spinning 0.14
Dynamic Drag – Static Drag 1.1 oz in 100 RPM
– Free Spinning 0.70 2000 RPM
Rotational Life – Static Drag 1 x 106Revolutions 1 lb Load
– Free Spinning 12 x 106Revolutions 4 oz Radial Load
Mounting Torque of Nut 13 lb in
ssssssssssss
00 01 02 10 11 12
HEDS-5700# A** *
C** **
F***
G*
I**** *
K**
HEDS-5701# A** *
C*
F** **
G*
H**
I*
HEDS-5740# A*
For product information and a complete list of distributors, please go to our website: www.avagotech.com
Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies, Pte. in the United States and other countries.
Data subject to change. Copyright © 2006 Avago Technologies Pte. All rights reserved. Obsoletes 5988-2565EN
5988-5856EN April 10, 2006

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