News Briefs

First intelligent pre-FET driver with dynamic fault threshold

The TPIC44H01, a four-channel, high-side pre-FET driver, is the first device of its kind to provide serial or parallel input interface to control four external NMOS power FETs. It is designed for low frequency switching of resistive or inductive loads including incandescent bulbs and solenoids.

This device is also the first high-side pre-driver with diagnostics compliant with federally mandated OBD II for automotive applications to reduce down time and cost. Each channel has independent open-load detection and over-current and short-to-ground detection/protection with fault status reporting via the serial interface. The TPIC44H01's dynamic over-current threshold is ideal for incandescent bulb applications with long inrush current.

Automotive applications include headlamps, anti-lock brake systems, transmissions and engine controls. Other applications include process control systems, robotics and battery switching/management for PCs. The TPIC44H01 is available in surface-mounted (TSSOP) packaging.

For complete information, order: Data Sheet (SLIS088). See Related Product Information.

TPIC44H01 features

Independent fault detection/protection
Sleep state mode
Serial interface feedback
Auto retry mode
Cascadable serial interface