LT3598 Просмотр технического описания (PDF) - Linear Technology

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производитель

LT3598

6-String 30mA LED Driver with ±1.5% Current Matching

Linear Technology 

LT3598

BLOCK DIAGRAM

SHDN

VIN

1.230VREF

VC

SS

RT

OSCILLATOR

SYNC

SLOPE

3

+

S

– A2

R

Q

A3

PWM

VREF

PWM DIMMING

LOGIC

OVP gm

SW

Q1

GND

GND

VOUT

VO_SW

FB

CTRL

TSET –

A1

VPTAT +

ISET

0.8V

LED gm

LED

DRIVE

CIRCUITRY

Figure 1. Block Diagram

OPENLED DETECTION

OPENLED

VOUT

LED1

LED2

LED

LED3

DISABLE

DETECTION LED4

LED5

LED6

3598 F01

3598fb

8

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