Microchip Current Monitor 5-Pin SOT-23 High Side, Offset Voltage 450 V, Quiescent Current 50μA HV7801K1-G

Microchip HV7801K1-G is a highly accurate and low power high-side current monitoring integrated circuit designed for precision current sensing applications. Housed in a small 5-pin SOT-23 package measuring 2.9mm in length and 1.45mm in height, this device supports surface mount installation and is suitable for compact electronic designs.

This current monitor offers a wide operating voltage range from 8 V to 450 V, allowing it to be deployed in a variety of industrial, automotive, and portable battery-powered applications. The offset voltage capability of 450 V enables it to handle high voltage circuits, making it ideal for power monitoring tasks.

With a quiescent current of only 50μA, it delivers excellent power efficiency, crucial for battery-operated and portable devices. The device achieves a voltage gain of five on the output signal, providing a ground referenced voltage proportional to the sensed current via a sense resistor placed in the high side of the power supply line.

Operable across a broad ambient temperature range from -40°C to 85°C, the HV7801K1-G is compliant with RoHS standards for environmental safety. The device's fast rise and fall times ranging from 700ns to 2.0μs facilitate responsive current measurement suitable for dynamic loads.

Typical use cases include industrial equipment monitoring, power management, and embedded electronic systems requiring current sensing. Its robust design and small footprint simplify integration into PCBs for real-time current sensing solutions.

The device features an offset voltage rating of 450 V for high voltage applications. It consumes a low quiescent current of 50μA enabling efficient battery or portable device integration. Packaged in a compact 2.9mm by 1.45mm SOT-23 form factor suitable for space-constrained designs.

Designed for surface mount technology with 5-pin configuration ensuring ease of PCB mounting. Operates reliably over a temperature range from -40°C to 85°C. Meets RoHS compliance standards, ensuring environmentally friendly design.

Typical applications include offline power monitoring, battery management, and industrial measurement systems. Provides a voltage gain of five with output referenced to ground, simplifying current measurement signal acquisition.

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