ATA6834-PLQW

The Atmel ATA6834-PLQW from Microchip Technology is a system basis chip for three-phase brushless DC motor controllers. Designed using 0.8µm SOI technology, it integrates a BLDC motor control unit with a microcontroller and six discrete power MOSFETs for automotive applications. This chip features a 3.3V/5V linear regulator and a window watchdog, along with essential control and protection functions such as overvoltage, overtemperature, short circuit detection, and undervoltage management.

Key electrical specifications include an operating voltage range of 5.5V to 18V and an extended operating temperature range of -40°C to 200°C (TJ). It supports a maximum switching frequency of 50kHz and provides 200mA peak current for each output driver. The integrated LIN transceiver conforms to LIN 2.1 and SAEJ2602-2 standards, offering robust EMC and ESD performance. The device also includes a programmable window watchdog and a sleep mode with a typical supply current of less than 45µA, with wake-up capabilities via LIN bus or high voltage input.

The ATA6834-PLQW is housed in a compact 48-VQFN (7x7mm) package with surface mount mounting type. Its design prioritizes safety requirements and high integration, aiming to save cost and space in automotive systems. The robust technology and high qualification level make it suitable for demanding automotive environments.