LM3447MTE datasheet(5/25 Pages) TI1

Nome de Peças	LM3447MTE

Descrição Electrónicos	Phase Dimmable, Primary Side Power Regulated PFC Flyback Controller for LED Lighting

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Fabricante Electrônico	TI1 [Texas Instruments]

Página de início	http://www.ti.com

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13

Input Voltage

Sense

and

Feedforward

Control

1

5

FET

Turn-on

Logic

Angle

Detection Circuit

3

11

Internal

Regulators

VCC

UVLO / OVP

Thermal

Shutdown

10

UVLO

OVP

DISABLE

S

Q

R

9

LEB

+

275mV

14

UVLO

13.5V

4.2V

Angle

Decoding

Circuit

4

Reference

Generator

2

Thermal

Foldback

1.75V

7.88k

+

6

7

PWM

Comparator

Error

Amplifier

Triggered

Ramp

Generator

2.5V

280mV

Fault

Timer

VREF

12

3.5V

1.75V

Valley Detection

Circuit

8

LEB

+

1.75V

AUX OVP

Comparator

Logic

and

Control

VAC

FF

FLT2

TSNS

INV

COMP

AUX

HOLD

FLT1

VCC

GATE

ISNS

BIAS

GND

ENHOLD

Hold Enable

OVP

ENHOLD

Hold Enable

ENHOLD

Hold Enable

LM3447

www.ti.com

SNOSC65 A – APRIL 2012 – REVISED MAY 2012

DEVICE INFORMATION

FUNCTIONAL BLOCK DIAGRAM

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Product Folder Links: LM3447

Nº de peça semelhante - LM3447MTE

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Texas Instruments	LM3447MT	1Mb / 26P	[Old version datasheet] a Phase-Dimmable, Primary-Side Regulated LED Driver

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Descrição semelhante - LM3447MTE

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Texas Instruments	SLUU937	1Mb / 26P	[Old version datasheet] a Phase-Dimmable, Primary-Side Regulated LED Driver
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LM3447MTE Folha de dados(PDF) 5 Page - Texas Instruments

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