The TPIC2603 is a monolithic low-side driver which provides serial interface and diagnostics to control six on-board power DMOS switches. Each channel has independent OFF-state open-load sense, ON-state shorted-load/short-to-battery protection, over-battery-voltage-lockout protection, and over-temperature sense with fault status reported through the serial interface. The device also provides inductive voltage transient protection for each drain output. The TPIC2603 drives inductive and resistive loads such as relays, valves, and lamps.

Serial data input (SDI) is transferred through the serial register when CS\ is low on low-to-high transitions of the serial clock (SCLK). Each string of data must consist of 8 or 16 bits of data.