Features

● Low cost, accurate high-side current sensing

● Output voltage scaling

● Up to 2.5V sense voltage

● 2.5V to 20V supply range

● 4μA quiescent current

● 1 typical accuracy

General Description

The TP1001S3 is a high side current sense monitor. Using this device eliminates the need to disrupt the ground plane when sensing a load current. It takes a high side voltage developed across a current shunt resistor and translates it into a proportional output current. A user defined output resistor scales the output current into a ground-referenced voltage.

The wide input voltage range of 20V down to as low as 2.5V make it suitable for a range of applications. A minimum operating current of just 4µA, combined with a SOT23 package make it a unique solution for portable battery equipment.