VN5050AJ-E数据手册集成电路（IC）的配电开关负载驱动器规格书PDF

描述 Description

The VN5050AJ-E is a monolithic device made using STMicroelectronics VIPower technology. It is intended for driving resistive or inductive loads with one side connected to ground. Active VCC pin voltage clamp protects the device against low energy spikes (see ISO7637 transient compatibility table).

This device integrates an analog current sense which delivers a current proportional to the load current (according to a known ratio) when CS_DIS is driven low or left open.

When CS_DIS is driven high, the CURRENT SENSE pin is in a high impedance condition. Output current limitation protects the device in overload condition. In case of long overload duration, the device limits the dissipated power to safe level up to thermal shut-down intervention. Thermal shut-down with automatic restart allows the device to recover normal operation as soon as fault condition disappears.

特性 Features

• General featuresInrush current active management by power limitationVery low stand-by current3.0V CMOS compatible inputOptimized electromagnetic emissionVery low electromagnetic susceptibilityIn compliance with the 2002/95/EC European directive
• ProtectionUndervoltage shut-downOvervoltage clampLoad current limitationSelf limiting of fast thermal transientsProtection against loss of ground and loss of VCCThermal shut down
• Diagnostic functionsProportional load current senseHigh current sense precision for wide range currentsCurrent sense disableThermal shutdown indicationVery low current sense leakage