HV7801K1-G

This device is the HV7801K1-G from Microchip, a high-side current sense amplifier. Such devices are typically used to sense load current on the positive supply rail, amplifying the small voltage difference across a sense resistor and outputting it to a controller or ADC for current monitoring, over-current protection, or closed-loop control. The HV7801 belongs to a current sense amplifier family, and the K1-G suffix typically relates to package and temperature grade. Specific gain, common-mode voltage range, supply range, and accuracy specifications should be based on the original manufacturer datasheet. It is suitable for power management, battery-powered equipment, industrial control, and automotive electronics requiring current monitoring. When purchasing, confirm the package, temperature grade, and lot, and verify they match the electrical requirements of the target application.