ABLIC Automotive Voltage Tracker IC

S-19720 Series:

The electrification of automobiles and the introduction of Advanced Driver Assistance Systems (ADAS) mean a great variety of sensors has to be installed to enable high accuracy for safe control.

ABLIC's S-19720 Series is a voltage tracker with the industry’s lowest offset voltage of ±5mV. This helps keep the power supply voltage of the off-board ratiometric sensor equal to the reference voltage (Vref) of the AD converter (ADC) handling ECU measurements, raising sensor reading accuracy. And the voltage tracker with its 36V input and 50mA output current is housed in an HSNT-6(2025), the industry’s smallest package. The S-19720 helps further reduce the footprint of automotive devices.

The S-19720 Series is a voltage tracker with a reverse current protection function, which has high-withstand voltage and low current consumption. Since the maximum operating voltage is as high as 36 V and the current consumption during power-off is as low as 4.0μA typ., it contributes to the reduction of ECU standby current. This IC includes an overcurrent protection circuit that prevents the load current from exceeding the current capacity of the output transistor and a thermal shutdown circuit that prevents damage because of overheating.

Due to the built-in reverse current protection function, IC reverse protection diode is not needed.