VN5050AJTR-E STMicroelectronics

VN5050AJ-E Single channel high side driver with analog current sense for automotive applications Features Max supply voltage V 41 V CC Operating voltage range V 4.5 to 36V CC PowerSSO-12 Max On-State resistance R 50 m ON Reverse battery protection ( see Current limitation (typ) I 16.5 A Application schematic ) LIMH Electrostatic discharge protection Off state supply current I 2 A S General features Application Inrush current active management by All types of resistive, inductive and capacitive power limitation loads Very low stand-by current Suitable as LED driver 3.0V CMOS compatible input Optimized electromagnetic emission Description Very low electromagnetic susceptibility The VN5050AJ-E is a monolithic device made In compliance with the 2002/95/EC using STMicroelectronics VIPower technology. It European directive is intended for driving resistive or inductive loads Diagnostic functions with one side connected to ground. Active V CC Proportional load current sense pin voltage clamp protects the device against low High current sense precision for wide range energy spikes (see ISO7637 transient currents compatibility table). Current sense disable This device integrates an analog current sense which delivers a current proportional to the load Thermal shutdown indication current (according to a known ratio) when Very low current sense leakage CS DIS is driven low or left open. Protection When CS DIS is driven high, the CURRENT Undervoltage shut-down SENSE pin is in a high impedance condition. Overvoltage clamp Output current limitation protects the device in overload condition. In case of long overload Load current limitation duration, the device limits the dissipated power to Self limiting of fast thermal transients safe level up to thermal shut-down intervention. Protection against loss of ground and loss Thermal shut-down with automatic restart allows of V CC the device to recover normal operation as soon as Thermal shut down fault condition disappears. Table 1. Device summary Order codes Package Tube Tape and Reel PowerSSO-12 VN5050AJ-E VN5050AJTR-E September 2013 Rev 7 1/31 www.st.com 31Contents VN5050AJ-E Contents 1 Block diagram and pin description . 5 2 Electrical specifications 7 2.1 Absolute maximum ratings . 7 2.2 Thermal data . 8 2.3 Electrical characteristics . 9 2.4 Electrical characteristics curves 18 3 Application information . 21 3.1 GND protection network against reverse battery . 21 3.1.1 Solution 1: resistor in the ground line (RGND only) 21 3.1.2 Solution 2: diode (D ) in the ground line 22 GND 3.2 Load dump protection 22 3.3 MCU I/O protection 22 3.4 Maximum demagnetization energy (VCC = 13.5V) . 23 4 Package and PCB thermal data . 24 4.1 PowerSSO-12 thermal data . 24 5 Package information 27 5.1 ECOPACK packages . 27 5.2 Package mechanical data 27 5.3 Packing information . 29 6 Revision history . 30 2/31