Microchip HV9901NG-G, MOSFET 1, 450V 16-Pin, SOIC

The HV9901 universal relay driver provides high-efficiency driving for low-voltage relays with supply voltages as high as 450V. For example, a relay with a 5V coil can be driven directly from the rectified 120 VAC or 230 VAC line.The IC includes two high-voltage linear regulators. The first one is for providing power to internal control circuitry. The second one has an adjustable output voltage and a 1 mA output current capability to support external circuitry, such as a microcontroller control circuit.

Additional Features
10 to 450V input voltage range
Energy saving hold current mode
Adjustable microcontroller supply
Low supply current <1.0mA
Constant current coil
Programmable pull-in current, pull-in time, and hold current
Efficient PWM operation using the relay coils’ inductance