ISL6423 查看數據表（PDF） - Renesas Electronics

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ISL6423

Single Output LNB Supply and Control Voltage Regulator with I2C Interface for Advanced Satellite Set-Top Box Designs DiSEqC 2.0 Compatible

Renesas Electronics 

Block Diagram

COUNTER

7

GATE

11

OVERCURRENT

PROTECTION

LOGIC SCHEME 1

OLF/BCF

DCL

PWM

LOGIC

Q

S

OC1

CLK1

6

PGND

CS

9

CS ILIM1

AMP



SLOPE

COMPENSATION

TDOUT

15

TONE

DECODER

14

TDIN

TXT

TTH

VREF1

8

VSW

13

VO

12

AGND

22

VCC

ON CHIP

LINEAR

UVLO

1

SGND

POR

SOFT-START

INT 5V

SOFT-START

EN1/EN2

NOTE:

5

10

1. Pinouts shown are for the QFN package.

17 16

34

23

SDA SCL

ISELL&H

EN

ENT

VTOP VBOT

OLF/BCF

I2C

INTERFACE

ADDR0

OUVF

ADDR1

OTF

TTH

DCL

THERMAL

SHUTDOWN

BAND GAP

REF VOLTAGE

REF

VOLTAGE

ADJ1

BGV

CLK1

OSC.

DIV &

WAVE SHAPING

TONE

INJ

CKT

INT

TONE

+

-

EXT TONE CKT

ENT1

CHARGE PUMP

CPVOUT

2

18

20

21

19

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