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
For all available packages, see the orderable addendum at the
end of the data sheet.
View datasheet View product folder