TMCS1107A4UQDRQ1

TMCS1107A4UQDRQ1 is a Texas Instruments single-channel isolated current-sense monitor. It measures current through a sense resistor in the high-current path and provides a galvanically isolated signal to the logic side. The device includes a precision current-sense amplifier, programmable gain, and fault-detection logic, delivering an analog output proportional to the sensed current plus a fault/overcurrent indication. It targets automotive and industrial power electronics, motor control, power supplies, and battery-management applications where isolation between the high-current path and the microcontroller is required. The A4UQDRQ1 suffix denotes a specific package variant (likely a QFN/exposed-pad, RoHS-compliant). For exact electrical specs, isolation rating, gain options, supply voltages, and pinout, refer to the TI datasheet.

Pin count: 8 pins.
Function: Galvanically isolated current-sense transducer. The device lets the current to be measured pass through its primary path and provides an isolated analog output (voltage proportional to the sensed current) on the secondary side, with its own isolated Vcc/GND supply.

- Manufacturer: Texas Instruments (TI)
- What kind of company: An American multinational semiconductor company that designs and manufactures analog, mixed-signal, and embedded processing integrated circuits.

Typical applications for TMCS1107A4UQDRQ1:
- Automotive electrical systems (battery monitoring, motor control)
- Industrial drives and power supplies
- AC/DC and DC/DC converter front-ends
- Energy metering and smart meters
- Battery-management systems (BMS)
- Renewable-energy inverters (solar/wind)
- General protection and fault-detection (overcurrent sensing) in DC rails and data-center power rails

8-pin QFN package (UQFN-8), typically 3x3 mm.