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Design DRV110
SLVSBA8F – MARCH 2012 – REVISED MARCH 2017 DRV110 120-and 230-V AC, 6-to 48-V DC Current Controller for
Solenoids, Relays, and Valves
1 Features 3 Description 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. 1 Internal Zener Diode on Supply Pin for HighVoltage Operation
– 120-and 230-V AC Supply Through Rectifier
and RS Resistor
– 24-V, 48-V, and Higher DC Supply Through RS
Resistor
Drives an External MOSFET With PWM to Control …
