TPD8S009DSMR – TEXAS INSTRUMENTS

The TPD8S009DSMR is a single-channel, high-side current sense amplifier IC from Texas Instruments, optimized for low-voltage, high-accuracy current monitoring applications. It features a highly linear output proportional to the sensed current, utilizing a 0.05Ω internal sense resistor. This results in a typical output voltage range of 0V to 2.5V, corresponding to a sensed current range dependent on the external load and supply voltage; however, the device operates optimally within a 2.7V to 5.5V supply voltage range. The amplifier boasts a low offset voltage, typically under 2mV, and a low input bias current, minimizing errors in current measurement. Packaged in a space-saving SOT-23-6 surface-mount package, it’s ideal for integration into compact designs. Common use cases include battery-powered systems requiring precise current monitoring for power management, motor control applications demanding accurate current feedback, and load monitoring circuits where precise current measurement is critical. Its advantages lie in its high accuracy, low power consumption, and small form factor, making it a superior choice over discrete solutions for applications prioritizing precision and efficiency in space-constrained designs. Note that external circuitry is required for signal conditioning and appropriate current scaling based on the desired application.