TPS92510 datasheet(6/25 Pages) TI1

Part #	TPS92510

Description	1.5-A Constant-Current Buck Converter for High-Brightness LEDs with Integrated LED Thermal Foldback

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Manufacturer	TI1 [Texas Instruments]

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UDG-11043

EN

TSENSE

VSENSE

PDIM

COMP

RT/CLK

PH

3

8

7

4

6

1.25 V

0.9 µA

2.9 µA

200 mV

Enable

Comparator

Current

Sense

1.35 V

+

1 µA

+

Error Amplifier

5.9 kHz

+

100 µA

PDIM

Comparator

Temperature

Comparator

Thermal

Shutdown

VIN

UVLO

Shutdown Logic

S

Slope

Compensation

Oscillator

with PLL

Logic

and

PWM

Latch

+

R

Q

S

R

BOOT

UVLO

5

PowerPAD

BOOT

Charge

10

9

GND

VIN

2

BOOT

1

2 V

0 V

COMP S/H

EA

Clamp

TPS92510

SLUSAE4A – JANUARY 2012 – REVISED JUNE 2012

www.ti.com

FUNCTIONAL BLOCK DIAGRAM

6

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TPS92510 Datasheet(PDF) 6 Page - Texas Instruments

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