VN920-E Single-Channel High-Side Driver IC – 5-Pin General-Purpose Power Switch

Description

• CMOS compatible input
• Proportional load current sense
• Shorted load protection
• Under voltage and overvoltage shutdown
• Overvoltage clamp
• Thermal shutdown
• Current limitation
• Protection against loss of ground and loss of VCC
• Very low standby power dissipation
• Reverse battery protected 
• In compliance with the 2002/95/ec european directive

The VN920-E is a monolithic device designed in STMicroelectronics VIPower™ M0-3 technology, intended for driving any kind of load with one side connected to ground. Active VCC pin voltage clamp protects the device against low energy spikes (see ISO7637 transient compatibility able). Active current limitation combined with thermal shutdown and automatic restart protect the device against overload. The device integrates an analog current sense output which delivers a current proportional to the load current. Device automatically turns off in case of ground pin disconnection.

High-side switches can safely drive high currents in resistive, inductive and capacitive grounded loads. Designed to work in the harsh automotive environment they requires both robust, low on-resistance power switch and accurate analogue circuitry for diagnostic, protection and control functions.

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