ISL6422ERZ-T Ver la hoja de datos (PDF) - Intersil

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Fabricante

ISL6422ERZ-T

Dual Output LNB Supply and Control Voltage Regulator with I2C Interface for Advanced Satellite Set-Top Box Designs

Intersil 

Block Diagram

17

56

8

4

7

COUNTER

OVERCURRENT

PROTECTION

LOGIC SCHEME 1

OLF1

DCL1

SELVTOP1

OLF2

DCL2

OVERCURRENT

PROTECTION

LOGIC SCHEME 2

COUNTER

12

GATE1

PGND1

11

PWM

LOGIC

Q

S

CLK1

OC1

CS ILIM1

AMP

CS1

15

∑

SLOPE

COMPENSATION

TDOUT1

23

TONE

DECODER

22

TDIN1

TXT1

VREF1

14

VSW1

20, 21

19

VOUT1

AGND

24

VCC

ON CHIP

LINEAR

UVLO

SGND

POR

2

SOFT-START

INT 5V

SOFT-START

EN1/EN2

BAND GAP

REF VOLTAGE

REF

VOLTAGE

ADJ1

OC2

SDA SCL ADDR1

ADDR0 OUVF2

OUVF11

ISEL1L AND

ISEL1H

EN1

ENT1

OLF1 FLT OLF2

I2C

INTERFACE

ISEL2L AND

ISEL2H

EN2

ENT2

OTF

VTOP1 VBOT1

DCL

VBOT2 VTOP2

CLK2

PWM

LOGIC

Q

S

GATE2

PGND2

ILIM2 CS

AMP

∑

CS2

SLOPE

COMPENSATION

BGV

CLK1 OSC. CLK2

1.1MHz

DIV AND

WAVE SHAPING

TONE

INJ

CKT 1

INT

TONE

TONE

INJ

CKT 2

BGV

REF

VOLTAGE

ADJ2

VREF2

SELVTOP2

VSW2

+

-

EXT TONE CKT

VOUT2

+

-

TDOUT2

ENT1

ENT2

TONE

DECODER

TDIN2

OTF

THERMAL

SHUTDOWN

CHARGE PUMP CPSWIN

CPVOUT CPSWOUT

39

40

36

34

37

30, 31

28

29

25

10

16

NOTE:

1. Pinouts shown are for the QFN package.

18

9

1

33 35

27

26

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