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| LM3444MM Datasheet, PDF (7/30 Pages) Texas Instruments – AC-DC Offline LED Driver | |||
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www.ti.com
COFF
LM3444
SNVS682C â NOVEMBER 2010 â REVISED MAY 2013
SIMPLIFIED INTERNAL BLOCK DIAGRAM
VCC
INTERNAL
REGULATORS
VCC UVLO
COFF
33Ã
1.276V
THERMAL
SHUTDOWN
START
LM3444
SQ
R
LATCH
MOSFET
DRIVER
GATE
1M
750 mV
FILTER
PWM
I-LIM
CONTROLLER
1.27V
1k
LEADING EDGE BLANKING
125 ns
ISNS
PGND
Figure 10. Simplified Block Diagram
Copyright © 2010â2013, Texas Instruments Incorporated
Product Folder Links: LM3444
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