ATA6843/ATA6844
BLDC Motor Driver and LIN System Basis Chip
DATASHEET Features
в—Џ Broad operation voltage range from 5.25V to 32V
в—Џ AtmelВ® ATA6843 temperature range TJ = 150В°C
в—Џ Atmel ATA6844 extended temperature range TJ = 200В°C
в—Џ Direct driving of six external NMOS transistors with a maximum switching
frequency of 50kHz
в—Џ Integrated charge pump to provide gate voltages for high-side drivers and to supply
the gate of the external battery reverse protection NMOS
в—Џ Built-in 5V/3.3V voltage regulator with current limitation
в—Џ Reset signal for the microcontroller
в—Џ Sleep Mode with supply current of typically < 45ВµA
в—Џ Wake-up via LIN bus or high voltage input
в—Џ Programmable window watchdog
в—Џ Battery overvoltage protection and battery undervoltage management
в—Џ Overtemperature warning and protection (shutdown)
в—Џ Jump start compatible
в—Џ LIN transceiver conformal to LIN 2.1 and SAEJ2602-2 with outstanding EMC and
ESD performance
в—Џ QFN48 package 7mm п‚ґ 7mm 9189K-AUTO-02/15 1. Description
The AtmelВ® ATA6843 and Atmel ATA6844 are system basis chips for three-phase brushless DC motor controllers designed
in Atmel’s state-of-the-art 0.8Вµm SOI technology SMART-I.S.в„ў1. In combination with a microcontroller and six discrete …