8-channel low-side driver for distributed loads
The Texas Instruments TPL9201PWPR is an 8-channel low-side N-channel power driver in a 20-HTSSOP package, designed for general-purpose switched-load applications. Each of the eight outputs delivers up to 150 mA, controlled via a serial interface, with a load supply range of 7 V to 18 V. The driver integrates fixed current limiting and over-temperature protection, reducing external protection components.
What the 150 mA per channel means for your BOM
The 150 mA per-output rating sets the load budget for each channel. At 150 mA continuous, the device handles small relays, indicator LEDs, and low-power solenoids without external driver transistors. The 1:8 input-to-output ratio means one serial interface controls all eight channels, keeping the MCU pin count low.