AN603 Datasheet (Vishay Siliconix) - Designing With the Si9978DW Configurable H-Bridge Controller

AN603, Designing With the Si9978DW Configurable H-Bridge Controller

AN603 Vishay Siliconix Designing With the Si9978DW Configurable H-Bridge Controller Wharton McDaniel Currently, there are a number of fully integrated H-bridges on the market.

Both bipolar and MOS technologies have been used to create these parts.

However, all of them suffer from problems such as limited current handling capability, large package size, and difficulty of assembly.

The Si9978DW addresses these problems with an architecture that allows flexible current handling capability, small s

AN603 Features

* integral high-side drive circuitry and an internal voltage regulator, which allows operation over a 20to 40-V dc input voltage range. Protection features include cross-conduction protection, current limiting, and undervoltage lockout. The FAULT outputs indicate when undervoltage or overcurrent shutd