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AN556 Datasheet The L6353: A Smart Gate Driver

Manufacturer: STMicroelectronics

Overview: w w power The superior performance of voltage controlled switch makes this device the preferred one in modern electronics applications. The L6353 is a new monolithic integrated circuit designed to realise a versatile and smart interface between the signal circuitry and every kind of voltage controlled power switch, with a minimal design time and a reduction of parts count.

General Description

The L6353 is a smart silicon device which integrates all the circuitry for a versatile and rugged gate driver.

The chip implements several

Key Features

  • such as: an easy-to-link signal source by means of either an optocoupler or pulse transformer, a two-step turn-on procedure of the external power switch (dedicated to IGBT driving), a switch dropout voltage monitoring, the possibility to give a negative bias to the gate, the external programmability of safety thresholds and delays, the syncronisation and edge aligning and a powerful buffer of ±8A with split output. To introduce the device see fig.1 which shows the functional diagram: Figure 1. L.

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