PV

+

-

Vin

Vout

+

-

R13

C6

1

uF

R5

500

C3

1

uF

R7

500

R8

500

R3

40k

R4

40k

R9

10k

C2

C7

5V

C1

10V

optional

optional

C8

10 nF

C4

0.47 uF

R15

10m

R10

R14

C5

0.47 uF

R11

R16

10m

R12

R6

500

C10

10n

SM72295

www.ti.com

SNVS688E – OCTOBER 2010 – REVISED APRIL 2013

SM72295 Photovoltaic Full Bridge Driver

Check for Samples: SM72295

1

FEATURES

DESCRIPTION

The SM72295 is designed to drive 4 discrete N type

2

•

Renewable Energy Grade

MOSFET’s in a full bridge configuration. The drivers

•

Dual Half Bridge MOSFET Drivers

provide 3A of peak current for fast efficient switching

•

Integrated 100V Bootstrap Diodes

and integrated high speed bootstrap diodes. Current

sensing is provided by 2 transconductance amplifiers

•

Independent High and Low Driver Logic Inputs

with externally programmable gain and filtering to

•

Bootstrap Supply Voltage Range up to 115V

remove ripple current to provide average current

DC

information to the control circuit. The current sense

•

Two Current Sense Amplifiers with Externally

amplifiers have buffered outputs available to provide

Programmable Gain and Buffered Outputs

a low impedance interface to an A/D converter if

needed. An externally programmable input over

•

Programmable Over Voltage Protection

voltage comparator is also included to shutdown all

•

Supply Rail Under-Voltage Lockouts with

outputs. Under voltage lockout with a PGOOD

Power Good Indicator

indicator prevents the drivers from operating if VCC is

too low.

PACKAGE

•

SOIC-28

Typical Application Circuit

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.