LM3464 datasheet(2/30 Pages) TI1

No. de pieza	LM3464

Descripción Electrónicos	LED Driver with Dynamic Headroom Control and Thermal Control Interfaces

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Fabricante Electrónico	TI1 [Texas Instruments]

Página de inicio	http://www.ti.com

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2 / 30 page

SYNC

DR1

GD1

SE1

VDHC

OutP

VLedFB

CDHC

Faultb

FAULT_CAP

VCC

DIM

Thermal

DMIN

Thermal_Cap

AGND

PGND

EN

VIN

PGND

DR2

GD2

SE2

DR3

GD3

SE3

DR4

GD4

SE4

CFLT

AGND

Primary power

supply

Voltage

feedback pin

VRAIL

Voltage

output

Fault acknowledgement output

FAULTb

DIM

PWM dimming input

CDHC

RFB1

RFB2

High Power LED Arrays

Q1

Q2

Q3

Q4

RISNS1

RISNS2

RISNS3

RISNS4

RDHC

RTHM1

CVCC

RTHM2

CTHM

RDMIN2

RDMIN1

PGND

NTC thermistor

couple to LED

arrays

To NTC thermal

sensor

A

B

To thermal

sensor

terminals

A

B

External voltage headroom control

VDHC

5V

0V

LM3464/64A

LM3464, LM3464A

SNVS652E – APRIL 2010 – REVISED JUNE 2011

www.ti.com

Typical Application

Connection Diagram

Figure 1. Top View

28-Lead TSSOP-28

Package Number PWP

2

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Product Folder Links: LM3464 LM3464A

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