The DRV110 device is a PWM current controller for solenoids. The device is designed to regulate the current with a well-controlled waveform to reduce power dissipation. The solenoid current is ramped up fast to ensure opening of the valve or relay. After initial ramping, the solenoid current is kept at a peak value to ensure correct operation, after which the current is reduced to a lower hold level to avoid thermal problems and reduce power dissipation.
The peak current duration is set with an external capacitor. The peak and hold levels of the current ramp, as well as the PWM frequency, can independently be set with external resistors. External setting resistors can also be omitted if the default values for the corresponding parameters are suitable for the application.
The DRV110 device has an internal Zener diode that limits the supply at VIN to VZENER for applications that require a higher supply voltage. Using the internal Zener, the DRV110 can be powered from 120-V and 230-V AC supplies through a rectifier and current-limiting resistor. High DC voltages such as 48-V can also be accommodated this way.
| Type | Title | Date | |
|---|---|---|---|
| * | Data sheet | DRV110 120- and 230-V AC, 6- to 48-V DC Current Controller for Solenoids, Relays, and Valves datasheet (Rev. G) | 28 Mar 2018 |
| Technical article | Liberate your solenoid or relay from the bonds of supply voltage | 16 Mar 2017 | |
| Technical article | The story of motor-drive integration | 09 Jan 2017 | |
| Technical article | How to create a dynamic power solution for stepper motors, relays and LEDs | 01 Nov 2016 | |
| Technical article | How to avoid motor and system overvoltage using AVS technology without external components | 14 Oct 2016 | |
| User guide | DRV110/DRV120 EVM User’s Guide (Rev. B) | 27 Jul 2012 | |
| More literature | Smart Relays for Solar Inverters | 03 May 2012 |
For additional terms or required resources, click any title below to view the detail page where available.
The DRV110EVM uses the DRV110A 14-pin TSSOP packaged version of DRV110 a power saving PWM solenoid driver. The EVM operates with full-rated performance either from a 7-48V DC, or 100-240V AC supply, enables easy control of all the adjustable device parameters and allows the connection of any (...)
| Package | Pins | Download |
|---|---|---|
| TSSOP (PW) | 14 | View options |
| TSSOP (PW) | 8 | View options |
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