ADC

ADC

CONTROLLER

AIN0

AIN1

AIN2

AIN3

AIN4

AIN5

AIN6

AIN7

CS_N

SCLK

DIN

DOUT

Vin

Iin

Vout

Iout

CLK GEN

D0

D1

D2

D3

D4

D5

D6

D7

LIA

HIA

LIB

HIB

ADC_C

VDDA

VSSA

VDDD

VSSD

AVin

AIin

AVout

AIout

A0

A2

A4

A6

MPPT CONTROLLER

SM72441

www.ti.com

SNOSB64G – OCTOBER 2010 – REVISED APRIL 2013

SM72441 Programmable Maximum Power Point Tracking Controller for Photovoltaic Solar

Panels

Check for Samples: SM72441

1

FEATURES

DESCRIPTION

The SM72441 is a programmable MPPT controller

2

•

Renewable Energy Grade

capable of controlling four PWM gate drive signals for

•

Programmable Maximum Power Point Tracking

a 4-switch buck-boost converter. Along with SM72295

•

Photovoltaic Solar Panel Voltage and Current

(Photovoltaic Full Bridge Driver) it creates a solution

Diagnostic

for an MPPT configured DC-DC converter with

efficiencies up to 98.5%. Integrated into the chip is an

•

Single Inductor Four Switch Buck-boost

8-channel, 12 bit A/D converter used to sense input

Converter Control

and output voltage and current, as well as board

•

VOUT Overvoltage Protection

configuration.

Externally

programmable

values

•

Over-Current Protection

include maximum output voltage and current as well

as different settings on slew rate, and soft-start.

PACKAGE

•

TSSOP-28

Block Diagram

Figure 1. Block Diagram

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2010–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.