Description:

The VNH5050A-E is a full bridge motor driverintended for a wide range of automotiveapplications. The device incorporates a dualmonolithic high-side driver and two low-sideswitches. All switches are designed usingSTMicroelectronics® well known and proven proprietary VIPower® M0 technology that allowsto efficiently integrate on the same die a truePower MOSFET with an intelligentsignal/protection circuitry. The three dies areassembled in a PowerSSO-36 TP package onelectrically isolated lead frames. This package,specifically designed for the harsh automotiveenvironment offers improved thermalperformance thanks to exposed die pads.Moreover, its fully symmetrical mechanical designallows superior manufacturability at board level.The input signals INA and INB can directlyinterface to the microcontroller to select the motordirection and the brake condition. The DIAGA/ENAor DIAGB/ENB, when connected to an externalpull-up resistor, enables one leg of the bridge.Each DIAGA/ENA provides a digital diagnosticfeedback signal as well. The normal operatingcondition is explained in the truth table. The CSpin allows monitoring the motor current bydelivering a current proportional to its value whenCS_DIS pin is driven low or left open. WhenCS_DIS is driven high, CS pin is in highimpedance condition. The PWM, up to 20 KHz,allows to control the speed of the motor in allpossible conditions. In all cases, a low level stateon the PWM pin turns off both the LSA and LSBswitches.

Features:

■ Output current: 30 A

■ 3 V CMOS compatible inputs

■ Undervoltage and overvoltage shutdown

■ Overvoltage clamp

■ Thermal shutdown

■ Cross-conduction protection

■ Current and power limitation

■ Very low standby power consumption

■ PWM operation up to 20 KHz

■ Protection against loss of ground and loss ofVCC

■ Current sense output proportional to motorcurrent

■ Output protected against short to ground andshort to VCC

■ Package: ECOPACK®