DRV110 - Texas Instruments

DRV110 6- to 48-V DC Current Controller

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 th.

Features

•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 Solenoid Current
  – External Sense Resistor for Regulating Solenoid Current
• Fast Ramp-Up of Solenoid Current to Ensure Activation
• Solenoid Current is Reduced in Hold Mode for Lower Power and Thermal Dissipation
• Ramp 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 Witho.