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LM3444MA/NOPB Datasheet(PDF) 8 Page - Texas Instruments

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No. de pieza LM3444MA/NOPB
Descripción Electrónicos  AC-DC Offline LED Driver
PDF  27 Pages
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

LM3444MA/NOPB Datasheet(HTML) 8 Page - Texas Instruments

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LM3444
VCC UVLO
S
R
Q
PWM
I-LIM
1.27V
ISNS
COFF
MOSFET
DRIVER
PGND
GATE
FILTER
VCC
1.276V
THERMAL
SHUTDOWN
1M
1k
INTERNAL
REGULATORS
750 mV
33
Ö
125 ns
LEADING EDGE BLANKING
COFF
LATCH
CONTROLLER
START
LM3444
SNVS682D – NOVEMBER 2010 – REVISED DECEMBER 2015
www.ti.com
7 Detailed Description
7.1 Overview
The LM3444 device contains all the necessary circuitry to build a line-powered (mains powered) constant current
LED driver.
7.2 Functional Block Diagram
7.3 Feature Description
7.3.1 Theory of Operation
For an image of the LM3444 along with basic external circuitry, see Figure 8.
8
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Product Folder Links: LM3444



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