HOA0902-012 Honeywell Sensing and Control, HOA0902-012 Datasheet
HOA0902-012
Manufacturer Part Number
HOA0902-012
Description
OPTICAL SENSOR, PHOTOTRANSISTOR
Manufacturer
Honeywell Sensing and Control
Specifications of HOA0902-012
No. Of Channels
2
Optocoupler Output Type
Logic Gate
Input Current
50mA
Output Voltage
4.5V
Opto Case Style
Through Hole
No. Of Pins
5
Mounting Type
Chassis
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HOA0902-012
Manufacturer:
HONEYWELL
Quantity:
209
FEATURES
DESCRIPTION
The HOA0902 assembly consists of a dual channel IC
detector and an IRED encased in a black thermoplastic
housing. The device is typically used with an interrupter
strip or disk (code wheel) to encode the rate and
direction of mechanical motion. Applications include
linear and rotary encoders; it is especially suited for the
encoding function in an optical mouse.
The detector is a monolithic IC which consists of two
narrow adjacent photodiodes, amplifiers stages and
quadrature logic circuitry which provides two outputs;
(1) a fixed-duration, low level active tachometer
(counting) pulse which is generated whenever the
illumination level passes through the sensing threshold,
and (2) a direction output which is set to a logic high or
low level dependent on which of the two channels is
illuminated first. The tachometer output is an NPN
collector which is internally connected to VÙÙ through a
10 kì (nominal) resistor; the direction output is a totem-
pole configuration. Both outputs are capable of directly
driving TTL loads. The IC design incorporates circuitry
to compensate the sensitivity for the output power vs.
temperature characteristic of the IRED.
The tachometer pulse is generated at both the
increasing and decreasing illumination thresholds of the
sensing channel, resulting in two tach pulses for each
mechanical period of the interrupter. The HOA0902 is
designed to work with a mechanical period as small as
0.036 in.(.914 mm), providing resolution to 0.018
in.(.457 mm). For additional component information see
SEP8506 and HLC2705.
Housing material is polycarbonate. Housings are
soluble in chlorinated hydrocarbons and ketones.
Recommended cleaning agents are methanol and
isopropanol.
HOA0902
Transmissive Encoder Sensor
220
Dual channel IC
Direct TTL interface
Resolution to 0.018 in.(.457)
Internal temperature compensation
0.126 in.(3.2 mm) slot width
Two mounting configurations
(12.40)
HOA0902-011
DIM_060.ds4
HOA0902-012
DIM_060b.cdr
INFRA-78.TIF
Tolerance
OUTLINE DIMENSIONS in inches (mm)
.488
LEADS
1. CATHODE
2. ANODE
3. SPEED
4. GND
5. Vcc
6. DIRECTION
.315(8.0)
OPTICALC L
.419(10.64)
.181(4.60)
.100(2.54)
.126(3.20)
3 plc decimals
2 plc decimals
.075(1.91)
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
.020(0.51)
LEADS TYP.
.300(7.62)
.500(12.7) MIN
.050
.100(2.54)
±0.005(0.12)
±0.020(0.51)
SQ.
3
1
4
6
5
2
.05(1.27)
3 PLCS
.083(2.1)
.090(2.3)
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HOA0902-012 Summary of contents
Page 1
... OPTICALC L .050 .181(4.60 .126(3.20) .488 3 5 .300(7.62) (12.40 .100(2.54) LEADS .100(2.54) 1. CATHODE .500(12.7) MIN 2. ANODE 3. SPEED 4. GND 5. Vcc 6. DIRECTION DIM_060.ds4 HOA0902-012 DIM_060b.cdr Honeywell reserves the right to make changes in order to improve design and supply the best products possible. .083(2.1) .05(1.27) 3 PLCS .090(2.3) ...
Page 2
... HOA0902 Transmissive Encoder Sensor ELECTRICAL CHARACTERISTICS PARAMETER SYMBOL IR EMITTER DETECTOR ABSOLUTE MAXIMUM RATINGS (25¡C Free-Air Temperature unless otherwise noted) Operating Temperature Range Storage Temperature Range Soldering Temperature (5 sec) IR EMITTER Power Dissipation Reverse Voltage Continuous Forward Current DETECTOR Supply Voltage Duration of Output Short to VÙ ...
Page 3
... HOA0902 Transmissive Encoder Sensor FUNCTIONAL BLOCK DIAGRAM OUTPUT TIMING DIAGRAM Fig. 2 IRED Trigger Current vs Temperature 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 -75 -50 - Ambient temperature - °C All Performance Curves Show Typical Values 222 OUTPUT CONFIGURATION WITH MOTION sch_043.cdr Fig. 1 IRED Forward Bias Characteristics cir_012 ...
Page 4
... HOA0902 Transmissive Encoder Sensor Honeywell reserves the right to make changes in order to improve design and supply the best products possible. 223 ...