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ATA6843


Part Number ATA6843
Manufacturer ATMEL
Title BLDC Motor Driver
Description The Atmel® ATA6843 and Atmel ATA6844 are system basis chips for three-phase brushless DC motor controllers designed in Atmel’s state-of-the-art 0....
Features
● Broad operation voltage range from 5.25V to 32V
● Atmel® ATA6843 temperature range TJ = 150°C
● Atmel ATA6844 extended temperature range TJ = 200°C
● Direct driving of six external NMOS transistors with a maximum switching frequency of 50kHz
● Integrated charge pump to provide gate voltages for hi...

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Datasheet ATA6843 PDF File








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ATA6842 : The ATA6842 is a monolithically-integrated multi-functional IC designed in Atmel ® ’s state-of-the-art 0.8 µm BCDMOS technology. With its built-in driver stages, voltage supplies and monitoring functions, it is an ideal cost saving failsafe system IC. The communication with an external microcontroller is provided by an 8-bit SPI interface. Four protected and current limited driver stages are available to control relays and additionally there is a gate driver including charge pump and bootstrap to control an external FET. Three LEDs for status information can be controlled via three separate outputs: The high-side driver at pin OUTP has monitoring functions for overcurrent and current thresho.

ATA6844 : The Atmel® ATA6843 and Atmel ATA6844 are system basis chips for three-phase brushless DC motor controllers designed in Atmel’s state-of-the-art 0.8µm 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 detection, and undervoltage management. Thanks to these function blocks, the driver fulfils a maximum of safety requirements and offers a high integration leve.




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