Current Sense Monitor operates with 20V to 2.5V inputs.
Press Release Summary:
Model ZXCT 1010 comes in SOT23 5-pin package, and measures load current with its high side sense resistor. Monitoring voltage across its shunt resistor and translating it into proportional output current, this current sense monitor IC uses 1 scaling resistor to convert proportional current into ground referenced output voltage. Features include separate pin to ground that produces output offsets to 30µV. Sense accuracy is rated to 1%.Original Press Release:
Simplicity And Economy From Low Offset High Side Current Sense Monitor
SIMPLICITY AND ECONOMY FROM
LOW OFFSET HIGH SIDE CURRENT SENSE MONITOR
Hauppauge, NY...In a compact SOT23 5-pin package, the new Zetex ZXCT 1010 provides an extremely simple and cost effective means of accurately measuring load current with a high side sense resistor. Monitoring the voltage across a shunt resistor and
translating it into a proportional output current, this current sense monitor IC uses a single scaling resistor to convert this proportional current into a ground referenced output voltage, thereby eliminating disruption of the ground plane.
An enhanced version of the companion ZXCTl009 device, the ZXCT1010 high side current monitor IC features a separate pin to ground that improves the typical output offset from 500mV to 30µV. This makes the part particularly important for applications
where the sense voltage to be measured is very low.
Requiring less PCB space than alternative and more costly matched transistor pair solutions and providing an improved sense accuracy of 1%, the SOT23-5 packaged current monitor is ideally suited for portable battery powered equipment. Possessing a low quiescent current of just 4µA, the ZXCT1010 also operates over a broad input voltage range, from 20V down to as low as 2.5V.
Besides the full array of personal portable equipment, potential uses of the ZXCT1010 include automotive applications, low cost battery chargers and DC motor controllers requiring a simple, cost effective current measurement solution.
The 1,000 piece price is $0.54 each. Samples and start-up quantities are available immediately and delivery of production volumes is quoted at 6 weeks.
