ZXCT1011 is a high side current sense monitor. Using this type of device eliminates the need to disrupt the ground plane when sensing a load current. The ZXCT1011 takes the 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. A current reference resistor, external to the IC, results in an improved temperature coefficient compared to the ZXCT1009. The wide input voltage range of 2.5V down to as low as 2.5V make it suitable for a range of applications. With a minimum operating current of just 4uA, combined with its SOT23-5 package make it suitable for portable battery equipment too.
The ZXCT1011 is a high‑side current sense monitor that converts the voltage across a shunt resistor into a proportional output current. It operates from a wide supply range of 2.5 V to 20 V, draws only 4 µA quiescent current, and offers 1 % typical accuracy, making it suitable for automotive, battery‑management, and portable applications.
The document lists absolute maximum ratings, electrical characteristics, typical performance curves, pin functions, and a SOT23‑5 package outline. Application examples show how to scale load current to an output voltage and how to select external resistors for desired accuracy.
| Supply voltage range | 2.5 V to 20 V |
|---|---|
| Quiescent current | 4 µA |
| Typical accuracy | 1 % |
| Operating temperature range | -40 °C to 125 °C |
| Bandwidth (Vsense = 10 mV) | 400 kHz |
| Package power dissipation | 300 mW @ 25 °C |
| Maximum junction temperature | 150 °C |
The device operates from 2.5 V up to 20 V supply voltage.
The quiescent current is 4 µA.
It is supplied in a SOT23‑5 surface‑mount package.
The device can operate up to 125 °C.