DRV120 Single-Channel Relay, Solenoid, Valve Low-Side Driver With Current Regulation


Product details


Vs (Max) (V) 26 Vs (Min) (V) 6 Peak output current (A) 0.25 Operating temperature range (C) -40 to 105 open-in-new Find other Solenoid drivers

Package | Pins | Size

TSSOP (PW) 8 19 mm² 3 x 6.4 TSSOP (PW) 14 32 mm² 5 x 6.4 open-in-new Find other Solenoid drivers


  • Integrated MOSFET With PWM to Control Solenoid Current
    • Integrated Sense Resistor for Regulating Solenoid Current
  • Fast Ramp-Up of Solenoid Current to Guarantee Activation
  • Solenoid Current is Reduced in Hold Mode for Lower Power and Thermal Dissipation
  • Peak Current, Keep Time at Peak Current, Hold Current, and PWM Clock Frequency Can Be Set Externally. They Can Also Be Operated at Nominal Values Without External Components.
  • Internal Supply Voltage Regulation
    • Up to 28-V External Supply
  • Protection
    • Thermal Shutdown
    • Undervoltage Lockout (UVLO)
    • Maximum Ramp Time
    • Optional STATUS Output
  • Operating Temperature Range: –40ºC to 105ºC
  • 8-Pin and 14-Pin TSSOP Package Options

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The DRV120 device is a PWM current driver for solenoids. The device is designed to regulate the current with a well-controlled waveform to guarantee activation and to reduce power dissipation at the same time. The solenoid current is ramped up fast to ensure opening of the valve or relay. After the initial ramping, solenoid current is kept at peak value to ensure the correct operation, after which it is reduced to a lower hold level in order to avoid thermal problems and reduce power dissipation.

The peak current duration is set with an external capacitor. The current ramp peak and hold levels, as well as 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 DRV120 can operate from an external 6-V to
28-V supply.

For all available packages, see the orderable addendum at the end of the data sheet.
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Technical documentation

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Type Title Date
* Data sheet DRV120 Single-Channel Relay, Solenoid, Valve Low-Side Driver With Current Regulation datasheet (Rev. C) Jun. 21, 2016
Technical article Liberate your solenoid or relay from the bonds of supply voltage Mar. 16, 2017
Technical article The story of motor-drive integration Jan. 09, 2017
Technical article How to create a dynamic power solution for stepper motors, relays and LEDs Nov. 01, 2016
Technical article How to avoid motor and system overvoltage using AVS technology without external components Oct. 14, 2016
Application note Driving solenoid coils efficiently in switchgear applications Oct. 28, 2013
User guide DRV110/DRV120 EVM User’s Guide (Rev. B) Jul. 27, 2012

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide

The DRV120EVM uses the DRV120A 14-pin TSSOP packaged version of DRV120 a power saving current controlled solenoid driver. The EVM operates with full-rated performance from a 6-26V DC supply, enables easy control of all the adjustable device parameters and allows the connection of any solenoid (...)

  • Voltage supply operation range: 6-26V DC
  • Connection of a any solenoid through a connector and wires
  • Easy setting of tunable parameters (OSC frequency, PEAK current, HOLD current) with potentiometers
  • Setting of KEEP time with a replaceable capacitor

Design tools & simulation

SLVM611A.ZIP (34 KB) - PSpice Model
SLVM627.TSC (362 KB) - TINA-TI Reference Design
SLVM628.ZIP (69 KB) - TINA-TI Spice Model
SLIC024.ZIP (416 KB)

CAD/CAE symbols

Package Pins Download
TSSOP (PW) 14 View options
TSSOP (PW) 8 View options

Ordering & quality

Information included:
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  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

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