SM72445

更新时间： 2024-09-25 12:22:35

品牌	Logo	应用领域
德州仪器 - TI		控制器
页数	文件大小	规格书
19页	350K
描述
Programmable Maximum Power Point Tracking Controller With Adjustable PWM Frequency

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SM72445 数据手册

March 7, 2012

SM72445

Programmable Maximum Power Point Tracking Controller

With Adjustable PWM Frequency

General Description

Features

The SM72445 is a programmable MPPT controller capable of

controlling four PWM gate drive signals for a 4-switch buck-

boost 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 (Photo-

voltaic 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 config-

uration. Externally programmable values include maximum

output voltage and current as well as different settings for slew

rate, soft-start and Panel Mode.

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

■

Block Diagram

30176102

FIGURE 1. Block Diagram

301761 SNVS795

www.ti.com

12 3 4 5 6 7...19

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SM72445_15	TI	获取价格	SM72445 Programmable Maximum Power Point Tracking Controller With Adjustable PWM Frequency
SM72445MT	TI	获取价格	Programmable Maximum Power Point Tracking Controller With Adjustable PWM Frequency
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SM72445MTE	TI	获取价格	Programmable Maximum Power Point Tracking Controller With Adjustable PWM Frequency
SM72445MTE/NOPB	TI	获取价格	SM72445 Programmable Maximum Power Point Tracking Controller With Adjustable PWM Frequency
SM72445MTX	TI	获取价格	Programmable Maximum Power Point Tracking Controller With Adjustable PWM Frequency
SM72445MTX/NOPB	TI	获取价格	SM72445 Programmable Maximum Power Point Tracking Controller With Adjustable PWM Frequency
SM72480	NSC	获取价格	SolarMagic 1.6V, LLP-6 Factory Preset Temperature Switch and Temperature Sensor
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SM72480SD-105	NSC	获取价格	SolarMagic 1.6V, LLP-6 Factory Preset Temperature Switch and Temperature Sensor