ATA6834 - ATMEL Corporation

ATA6834 (ATA6833 / ATA6834) BLDC Motor Driver and LIN System Basis Chip

The ATA6833 and ATA6834 are system basis chips for three-phase brushless DC motor controllers designed in Atmel ® ’s state-of-the-art 0.8 µm SOI technology SMART-I.S.™1. In combination with a microcontroller and six discrete power MOSFETs, the system basis chip forms a BLDC motor control unit for automotive applications. In addition, the circuits provide a 3.

Features

• ATA6833 Temperature Range TJ = 150°C
• ATA6834 Extended Temperature Range TJ = 200°C
• Direct Driving of 6 External NMOS Transistors with a Maximum Switching Frequency of 50 kHz
• Integrated Charge Pump to Provide Gate Voltages for High-side Drivers and to Supply
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• the Gate of the External Battery Reverse Protection NMOS Built-in 5V/3.3V Voltage Regulator with Current Limitation Reset Signal for the Microcontroller Sleep Mode with Supply Current of typically < 45 µA Wake-up via LIN Bus or High Voltage Input Programmable Window Watchdog Battery Overvoltage Protection and Ba.