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DRV102_15 Datasheet, PDF (17/27 Pages) Texas Instruments – PWM SOLENOID/VALVE DRIVER | |||
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a)
DRV102 5
1
On/Off
Delay
Adjust
2
3
Duty
Cycle
Adjust
6
Out
4 Gnd
Heating
Element
VS
Higher temperature results
in lower duty cycle.
Thermistor
R1
R2
b)
On/Off
Delay
Adjust
1 DRV102
5
0.1µF
2
3
6
Out
4 Gnd
Heating
Element
VS
10µF
7, 8
100µA
REF200
100µA
Duty Cycle
Adjust
4.7V
2µF Film
1
2
0.1µF VS
7
2
10Mâ¦
1kâ¦
6
OPA134
3
4
or
Thermistor
5k⦠at +25°C
Integrator improves accuracy
10kâ¦
IN4148(1)
Temperature
Control
Higher temperature results
in lower duty cycle.
NOTE: (1) Or any common silicon diode suited
to the mechanical mounting requirements.
20kâ¦
FIGURE 18. (a) Constant Temperature Controller. (b) Improved Accuracy Constant Temperature Controller.
DRV102
17
SBVS009B
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