High Side Current Sensor Monitor, 4µA, 2MHz, SOT-23, 2.5V

This high side current sensor monitor in a 3-pin SOT-23 package eliminates the need to disrupt the ground plane when sensing load current. It takes the high side voltage developed across a current shunt resistor and translates it into a proportional output current. A user-defined output resistor then scales this output current into a ground-referenced voltage.

Offering low cost and accurate high side current sensing, this device features output voltage scaling and supports a sense voltage of up to 2.5V. It operates within a supply voltage range from 2.5V to 20V and boasts a remarkably low quiescent current of just 4µA, making it highly efficient for power-sensitive applications.

With a typical accuracy of ± 1% and a bandwidth of 2MHz, this sensor ensures precise and responsive monitoring. It delivers an output current of 9.98mA at a sense voltage of 1V. Designed for robust performance, the operating temperature ranges from -40°C to 85°C, and it features a surface mount configuration for straightforward PCB integration.

Key Specifications

• Quiescent Current: 4µA
• Bandwidth: 2MHz
• Accuracy: ± 1%
• Supply Voltage Range: 2.5V to 20V
• Output Current: 9.98mA at VSENSE = 1V