Datasheet > A3520

A3520

更新时间： 2024-11-18 06:34:47

品牌	Logo	应用领域
ALPHA-MICRO		电动机控制控制器
页数	文件大小	规格书
2页	295K
描述
DC motor controller IC, providing a single chip solution

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A3520 数据手册

a3520 general features

The a3520 is a DC motor controller IC, providing a single chip solution for a wide

range of tasks including power supply, motor control and high level system control.

The IC's components enable parallel execution of system functions such as PWM

input capture, current limit monitoring, bridge clock generation, etc., while reducing

the IC's MCU's load and memory requirements.

IC Features

MCU Features

 Operating VCC range from 5-18V

 On-chip 25MHz ±1% oscillator

 10bit AD Converter with 8-channel

multiplexer

 Standard compatible MCU

 Powerful single cycle instruction set

(only RAM access and branches need

two cycles)

 On-chip 3.3V/5mA regulator

 On-chip programmable

0.7V to 2.7V/10mA regulator,

suitable for driving passive

hall elements

 25MHz MCU clock

 12 prioritized interrupt levels

 256Byte RAM

 4kByte Pseudo-MTP program memory

 Four 16bit timers with pre-scaler

 Two 8 bit timers with pre-scaler

 Hardware watchdog timer

 On-chip debugging support

 Fast RAM-based development support

 Two wire programming and debugging

interface

 VCC monitor

 On-chip temperature sensor

 6 gate driver outputs with pull and

dump resistors

 PWM input capture unit to decode

duty cycles of external signals

 Open drain signal output, over

current protected

 Two wire interface

 0-VCC high voltage PWM-output

ready to drive inrush current

protection transistors

Package: QFN28

 Up to 10 pins usable as GPIO

 Spread spectrum PWM support

via software

 Non-overlapping bridge clock

generator with programmable dead-

time

 Programmable current limit

 analog comparator with

programmable hysteresis

(Hall sensor, Phase voltage

feedback)

The 28 pin 4x4mm QFN package

option is best suited for small board

designs.

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