器件名称: A3520
功能描述: DC motor controller IC, providing a single chip solution
文件大小: 295.26KB 共2页
简 介: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 Operating VCC range from 5-18V On-chip 25MHz ±1% oscillator 10bit AD Converter with 8-channel multiplexer On-chip 3.3V/5mA regulator On-chip programmable 0.7V to 2.7V/10mA regulator, suitable for driving passive hall elements 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 Up to 10 pins usable as GPIO Spread spectrum PWM support via software Non-overlapping bridge clock generator with programmable deadtime Programmable current limit analog comparator with programmable hysteresis (Hall sensor, Phase voltage feedback) MCU Features Standard compatible MCU Powerful single cycle instruction set (only RAM access and branches need two cycles) 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 ……
