Datasheet

DRV101
14
SBVS008B
www.ti.com
APPLICATION CIRCUITS
FIGURE 13. Fluid Flow Control System.
DRV101
Thermal Shutdown
Over/Under Current
24kHz
Oscillator
PWM
Delay
Gnd
TTL Control Input
Off
On
Flexible Tube
Plunger
Pinch Valve
Solenoid Coil
Out
6
4
57
2
1
C
D
R
PWM
3
V
S
(+9V to +60V)
Flag
Delay
Adjust
Duty Cycle Adjust
(1)
(10% to 100%)
Can drive most types
of solenoid-actuated
valves and actuators
NOTE: (1) Duty cycle can be programmed by
a resistor, analog voltage, or D/A converter.
Do not drive below 0.1V.
Microprocessor
+5V
5kΩ
FIGURE 14. Instrument Light Dimmer Circuit.
FIGURE 15. 4-20mA Input to PWM Output.
DRV101
Coil
Duty Cycle Adjust
Input
(On/Off)
5
V
S
6
4
1
3
4-20mA
NOTE: (1) Rectifier diode required for inductive
loads to conduct load current during the off cycle.
(1)
100Ω
187Ω
DRV101
Lamp
Cadmium Sulfide
Optical Detector
(Clairex CL70SHL
or CLSP5M)
Aimed at
ambient
light
On/Off
λ
Brighter light results in
increased duty cycle
5
6
4
10kΩ
V
S