ATA6833

www.DataSheet4U.com 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 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 Battery Undervoltage Management Overtemperature Warning and Protection (Shutdown) 200 mA Peak Current for Each Output Driver LIN Transceiver Conformal to LIN 2.1 and SAEJ2602-2 with Outstanding EMC and ESD Performance QFN48 Package 7 mm × 7 mm BLDC Motor Driver and LIN System Basis Chip ATA6833 ATA6834 Preliminary 1. Description 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 3.3V/5V linear regulator and a window watchdog. The circuit includes various control and protection functions like overvoltage and overtemperature protection, short circuit detecti...