[原创] Microchip MCP19215双路电源PWM控制方案

Microchip公司的MCP19214/5是两路高度集成数字增强PWM控制器,包括全可编程微控制器核和10位模数转换器;每路PWM包括两个误差放大器,以及可调基准电压发生器,电流传感输入,可编斜率补偿发生器,可编振荡器,电流传感差分放大器和MOSFET驱动器.AEC Q100认可和PPAP功能,输入电压4.5V-42V,主要用在电池充电器,双向转换器,LED照明系统和其它低边开关PWM应用.本文介绍了MCP19215主要特性,功能框图和双LED串应用电路图,双向转换器应用电路图和MCP19215双升压/SEPIC评估板ADM00799主要特性,电路图和材料清单.

The MCP19214/5 devices are highly integrated,digitally enhanced PWM controllers, used for batterychargers, bidirectional converters, LED lightingsystems and other low-side switch PWM applications.

These devices feature two independent analog PWMcontrollers, and the internal architecture is optimizedfor applications that require precise control of theoutput parameters. Like the other members of thedigitally enhanced PWM controllers family,MCP19214/5 includes a fully programmablemicrocontroller core and a 10-bit analog-to-digitalconverter.

Each PWM channel includes two error amplifiers withindependent adjustable reference voltage generators,current sense input with programmable leading edgeblanking, programmable slope compensation rampgenerator, integrated internal programmable oscillator,current sense differential amplifier and an integratedMOSFET driver.
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