ISL97694AIRTZ-T Просмотр технического описания (PDF) - Intersil

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Компоненты Описание

производитель

ISL97694AIRTZ-T

Single or Multiple Cell Li-ion Battery Powered 4-Channel and 6-Channel LED Drivers

Intersil 

ISL97692, ISL97693, ISL97694A

Block Diagrams (Continued)

VIN: 2.4V~5.5V

OPTIONAL FUSE

VIN

10µH

LX

EN

FSW

REG

OSC &

RAMP

COMP

INTERNAL BIAS

O/P SHORT

OVP

IMAX ILIMIT

PWM/

FET

PFM DRIVERS

LOGIC

OVP

PGND

COMP

ISET

GM

AMP

8-BIT

DAC

DYNAMIC

HEADROOM

CONTROL

HIGHEST

VF

STRING

DETECT

+

-

+

REF

-

GEN

REF_OVP REF_VSC

OPEN CKT, SHORT CKT

DETECTION

1

2

3

4

5

CH1

CH2

CH3

CH4

CH5

CH6

SCL

SDA/PWMI

FPWM

I2C

CONTROLLER

DIRECT

PWM

DETECT

PHASE

SHIFT & PWM

DIMMING

CONTROLLER

+

6

-

ISL97694A

TEMP

SENSOR

FIGURE 8. ISL97694A BLOCK DIAGRAM

24V, 6x30mA

6

FN7839.2

July 19, 2012

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