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SM72441 Datasheet Preview

SM72441 Datasheet

Programmable Maximum Power Point Tracking Controller

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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
FEATURES
1
2 Renewable Energy Grade
• Programmable Maximum Power Point Tracking
• Photovoltaic Solar Panel Voltage and Current
Diagnostic
• Single Inductor Four Switch Buck-boost
Converter Control
• VOUT Overvoltage Protection
• Over-Current Protection
PACKAGE
• TSSOP-28
DESCRIPTION
The SM72441 is a programmable MPPT controller
capable of controlling four PWM gate drive signals for
a 4-switch buck-boost converter. Along with SM72295
(Photovoltaic Full Bridge Driver) it creates a solution
for an MPPT configured DC-DC converter with
efficiencies up to 98.5%. Integrated into the chip is an
8-channel, 12 bit A/D converter used to sense input
and output voltage and current, as well as board
configuration. Externally programmable values
include maximum output voltage and current as well
as different settings on slew rate, and soft-start.
Block Diagram
VDDA
VDDD
AVin
AIN0
D0 Vin
D1 Iin
AIin
AIN1
D2 Vout
AVout
AIN2
CS_N
D3 Iout
D4
HIB
LIB
AIout
AIN3
SCLK
DIN
D5
MPPT CONTROLLER
D6
HIA
D7
LIA
ADC
DOUT
ADC
CONTROLLER
A0
AIN4
A2
AIN5
A4
AIN6
A6
AIN7
ADC_C
CLK GEN
VSSA
VSSD
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.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010–2013, Texas Instruments Incorporated




etcTI

SM72441 Datasheet Preview

SM72441 Datasheet

Programmable Maximum Power Point Tracking Controller

No Preview Available !

SM72441
SNOSB64G – OCTOBER 2010 – REVISED APRIL 2013
www.ti.com
PV(+)
Rsen_in
Vo
Current Sensing Amplifier
R
Gate 2
PV(-) 0.01 PF
R
5V
RT1
RT2
RT3
RT4
.1 PF
0.1 PF
RB1
0.1 PF
0.1 PF
RB2
RB3
RB4
CONFIGURATION RESISTOR
0.01 PF
5V
2.2 PF
49.9:
VDDA
VDDD
AVIN
AIIN
NC7
NC1
AIOUT
A0
HIB
A2
LIB
A4
HIA
A6
LIA
5V
10k
SM72441
NC2
10k NC5
10k NC6
10k NC3
10k NC4
10k NC8
NC9
RST
OVP
AVOUT
LED
VSSA
VSSD
0.01 PF
2.2 PF
Gate 1
Current Sensing Amplifier
Current Sensing Amplifier
5V
150k
10k
10k
PWM4
PWM3
PWM2
PWM1
RFB1
RFB2
H-Bridge Driver
Gate 4
Vo
Rsen_out
Gate 3
Current sensing Amplifier
Gate 4
Gate 3
Gate 2
Gate 1
Figure 2. Typical Application Circuit
2
Submit Documentation Feedback
Product Folder Links: SM72441
Copyright © 2010–2013, Texas Instruments Incorporated



Part Number SM72441
Description Programmable Maximum Power Point Tracking Controller
Maker etcTI
Total Page 3 Pages
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SM72441 Datasheet PDF





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