PWM Solenoid and Valve Driver using DRV103
- Rajkumar Sharma
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This tiny module is a PWM Solenoid and Valve driver using the Texas instrument’s DRV103 low-side DMOS power switch, employing a pulse-width modulated (PWM) output. Its rugged design is optimized for driving electromechanical devices such as valves, solenoids, relays, actuators, motors, and positioners. This board is also ideal for driving thermal devices such as heaters, coolers, lamps etc. PWM operation conserves power and reduces heat rise, resulting in higher reliability. In addition, adjustable PWM allows fine control of the power delivered to the load. Output delay time and oscillator frequency are also externally adjustable.
The DRV103 can be set to provide a strong initial closure, automatically switching to a “soft” hold mode for power savings. A resistor, analog voltage, or Digital-to-Analog(D/A) converter can control the duty cycle. An output OK flag indicates when thermal shutdown or over current occurs.
Features
- Supply 8V to 32V DC
- Load Capacity 1.5A
- Trigger Input Voltage 1.5V to 5V DC
- Thermal and Current Limit Shutdown
- On-Board Power LED
Applications
- Solenoids
- Valves
- Heaters, Coolers
- Lamps
- Relays
- Power Contactor Coils
- Hydraulics and Pneumatics Systems
- Oscillator Frequency range 500Hz to 100Khz, the default set to 5Khz, Frequency can be altered by changing R4 ( Refer to Datasheet for more details)
- Delay Output: Default delay set to approx. 100 ms, Delay can be adjusted by changing Capacitor C1
- Duty Cycle is adjustable 10% to 95% , the default set to 95% can be altered by changing R3 (Refer to Datasheet for more details)
Schematic
Parts List
Photos
Measurements


Manufacturing

Videos
DRV103 Datasheet
drv103
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Comments
where can i buy it?
1 year agoHow many pieces do you need?
1 year ago2 units
1 year agoWhere can I buy this driver circuit. I need 200 pcs. Please contact me asap surojit@smato.in
9 months agoPlease check your email. Thanks
9 months agoDo you sell these modules?
11 months agoYes, we can produce them for you. Check your email.
11 months agoPlease send me order information.
9 months agoDo you not handle something similar but at least 2 amps?
5 months agoCheck here: https://www.electronics-lab.com/project/9v-to-60v-pwm-2-3a-solenoid-valve-driver-using-drv101/
5 months agoI would like a price for 10 boards completely populated with a 1 second Peak and 50% duty cycle. Please advise! Thanks!
1 month agoPlease check your email for a quote.
1 month ago