1 Features

• Qualified for Automotive Applications
• AEC-Q100 Test Guidance With the Following Results:
  • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature
  • Device HBM ESD Classification Level 2
  • Device CDM ESD Classification Level C3
• 3 Phase Bridge Driver for Motor Control
• Drives 6 Separate N-Channel Power MOSFETs up to 250-nC Gate Charge
• Programmable 140-mA to 1-A Gate Current Drive (Source/Sink) for Easy Output Slope Adjustment
• –7-V to 40-V Compliance on All FET Driver Pins to Handle Inductive Undershooting and Overshooting
• Separate Control Input for Each Power MOSFET
• PWM Frequency up to 30 kHz
• Supports 100% Duty Cycle Operation
• Operating Voltage: 4.75 to 30 V
• Proper Low Supply Voltage Operation Due to Integrated Boost Converter for Gate-Driver Voltage Generation
• Logic Functional Down to 3 V
• Short Circuit Protection With VDS-Monitoring and Adjustable Detection Level
• Two Integrated High Accuracy Current Sense Amplifiers With Two Gain-Programmable Second Stage for Higher Resolution at Low Load Current Operation
• Overvoltage and Undervoltage Protection
• Shoot-Through Protection With Programmable Dead Time
• Three Real Time Phase Comparators
• Overtemperature Warning and Shut Down
• Sophisticated Failure Detection and Handling Through SPI Interface
• Sleep Mode Function
• Reset and Enable Function
• Package: 64-pin HTQFP PowerPAD™

2 Applications

• Automotive Safety Critical Motor-Control Applications
  • Electrical Power Steering (EPS, EHPS)
  • Electrical Brake/Brake Assist
  • Transmission
  • Oil-Pump
• Industrial Safety Critical Motor-Control Applications

3 Description

The bridge driver is dedicated to automotive 3 phase brushless DC motor control including safety relevant applications. It provides six dedicated drivers for normal level N-Channel MOSFET transistors. The driver capability is designed to handle gate charges of 250 nC, and the driver source/sink currents are programmable for easy output slope adjustment. The device also incorporates sophisticated diagnosis, protection and monitoring features through an SPI interface. A boost converter with integrated FET provides the overdrive voltage, allowing full control on the power-stages even for low battery voltage down to 4.75 V.

1. For all available packages, see the orderable addendum at the end of the data sheet.

Typical Application Diagram

4 Device and Documentation Support

4.5 Electrostatic Discharge Caution

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.