The ZXCT1010 is a high side current sense monitor. It is an enhanced version of the ZXCT1009 offering reduced typical output offset and improved accuracy at low sense voltage. It has a wide input voltage range of 20V down to as low as 2.5V and a minimum operating current of just 4µA.
The ZXCT1010 provides high‑side current sensing without breaking the ground plane. It offers a wide supply range of 2.5 V to 20 V, a typical offset current of 300 nA, and a quiescent current of only 3.5 µA, making it suitable for portable battery‑powered equipment. The device is supplied in a compact SOT‑23‑5 package.
Typical applications include battery chargers, smart battery packs, DC‑motor control, over‑current monitoring, power‑management circuits and programmable current sources. Example circuits show how to select Rsense and Rout to obtain a proportional output voltage, and the part can be used for bi‑directional current sensing when two devices are stacked.
| Supply voltage range | 2.5 V to 20 V |
|---|---|
| Quiescent current | 3.5 µA |
| Typical offset current | 300 nA |
| Continuous output current | 25 mA |
| Power dissipation (SOT‑23‑5) | 500 mW |
| Operating temperature range | -40 °C to 85 °C |
It operates from 2.5 V up to 20 V.
The typical quiescent current is 3.5 µA.
The device can continuously source up to 25 mA.
Yes, two devices can be stacked to measure current in both directions.