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ATA6844

High Temperature BLDC Motor Driver and LIN System Basis Chip

Status: In Production

Features:

  • Broad operation voltage range from 5.25V to 32V
  • 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 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 < 45μA
  • Wake-up via LIN bus or high voltage input
  • Programmable window watchdog
  • Battery overvoltage protection and battery under voltage management
  • Overtemperature warning and protection (shutdown)
  • Jump start compatible
  • LIN transceiver conformal to LIN 2.1 and SAEJ2602-2 with outstanding EMC and ESD performance
  • QFN48 package 7mm x 7m
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

System basis chip for three-phase brushless DC motor controllers designed in the Microchip 0.18-µm SOI technology SMART-I.S.™. The chip forms a BLDC motor control unit for automotive applications in combination with a microcontroller and six discrete power MOSFETs. Works in extended supply voltage range from 5.25V up to 32V. It features a Tjunction of up to 200°C. Its circuits provide a 3.3V/5V linear regulator and a window watchdog. It includes various control and protection functions like overvoltage and over-temperature protection, adjustable short circuit detection, undervoltage management and coast function. Its drivers fulfill maximum safety requirements and offer a high integration level to save cost and space.

Additional Features
    • Broad operation voltage range from 5.25V to 32V
    • 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 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 < 45μA
    • Wake-up via LIN bus or high voltage input
    • Programmable window watchdog
    • Battery overvoltage protection and battery under voltage management
    • Overtemperature warning and protection (shutdown)
    • Jump start compatible
    • LIN transceiver conformal to LIN 2.1 and SAEJ2602-2 with outstanding EMC and ESD performance
    • QFN48 package 7mm x 7m
Parametrics
Name
Value
Operating Voltage Range (V)
5.5 to 32
Output
Gate Driver
Max. Ron per Output (?)
20
Motor Control Methods
Direct PWM Input
Shutdown Protection
Short Circuit, Overtemperature, Over/Under Voltage, Chargepump Fail, Watchdog
Ambient Temperature Range (°C)
-40 to 150
Voltage Regulators
1
Voltage Regulator Current (mA)
100
Integrated LIN Transceiver
Yes
Packages
48/VQFN

Documents

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Data Sheet

Brochures

08/01/2015
3116KB
11/01/2013
5255KB

Development Environment

  • Demo & Evaluation Boards
  • Application Examples
Demo & Evaluation Boards
ATA6844-DK
ATA6844-DK ( ATA6844-DK )

Intention of the kit is demonstrating the features of the ATA6843/44 System Basis Chip BLDC Gate Driver. Motor position feedback operates with Back-Electromotive-Force (Back-EMF). Motor control microcontroller is ATmega32M1. For monitoring and evaluating purposes is an USB interface on board.

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ATA6832-DK
ATA6832-DK ( ATA6832-DK )

The development board contains an triple half bridge driver (ATA6832), ATmega88 microcontroller, and ATA6625 LIN SBC as a voltage regulator. Only high-temperature components populate this board. The board also includes a BLDC motor control kit with BLDC motor and a power supply cable with banana plugs. The BLDC motor control is fully integrated from the signal generation to the full BLDC motor...

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ATA6823-DK
ATA6823-DK ( ATA6823-DK )

The development kit contains a main board with an H-bridge gate driver (ATA6823), external FETs, and DC motor. The controller board is populated with an ATmega88 microcontroller and LCD display.

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
ATA6844-PLQW-1
0.144300
0.060857
48
VQFN
7x7x0.9mm
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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