SM72445 - 具有可调节 PWM 频率的可编程最大功率点跟踪控制器

SM72445是TI德州仪器公司的一款控制器（外部开关）产品，SM72445是具有可调节 PWM 频率的可编程最大功率点跟踪控制器，本站介绍了SM72445的封装应用图解、特点和优点、功能等，并给出了与SM72445相关的TI元器件型号供参考。

SM72445 - 具有可调节 PWM 频率的可编程最大功率点跟踪控制器 - 控制器（外部开关） - DC/DC开关稳压器 - 德州仪器

产品描述

The SM72445 is a programmable MPPT controller capable of controlling four PWM gate drive signals for a 4-switch buckboost converter. The SM72445 also features a proprietary algorithm called Panel Mode (PM) which allows for the panel to be connected directly to the output of the power optimizer circuit when the input to output voltage ratio is close to 1. This provides an opportunity to optimize the efficiency of the power optimizer when the load is naturally matching the maximum power point of the panel. Along with the SM72295 (Photovoltaic Full Bridge Driver), it creates a solution for an MPPT configured DC-DC converter with efficiencies up to 99.5% (when operating with dedicated PM switches). Integrated into the chip is an 8-channel, 10 bit A/D converter used to sense input and output voltages and currents, as well as IC configuration. Externally programmable values include maximum output voltage and current as well as different settings for slew rate, soft-start and Panel Mode.

产品特性

Renewable Energy Grade
110kHz,135kHz or 215kHz PWM operating frequency
Panel Mode pin for optional bypass switch control
Programmable maximum power point tracking
Photovoltaic solar panel voltage and current diagnostic
Single inductor four switch buck-boost converter control
I2C interface for communication
Output overvoltage protection
Over-current protection
Package
- TSSOP-28

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