ADP1031ACPZ-5-R7 datasheet(23/38 Pages) AD

tên linh kiện	ADP1031ACPZ-5-R7

Giải thích chi tiết về linh kiện	Three-Channel, Isolated Micropower Management Unit with Seven Digital Isolators

PDF	38 Pages

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nhà sản xuất	AD [Analog Devices]

Trang chủ	http://www.analog.com

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23 / 38 page

Data Sheet

ADP1031

Rev. A | Page 23 of 38

THEORY OF OPERATION

The ADP1031 is a high performance, isolated micro PMU that

combines an isolated flyback regulator, an inverting regulator,

and a buck regulator, providing three isolated power rails.

Additionally, the ADP1031 includes seven low power digital

isolators in a 41-lead LFCSP package for channel to channel

isolated applications where power dissipation and board space

are at a premium.

VOUT1

VOUT2

VOUT3

MVDD

SVDD2

VINP

SW2

FB1

VOUT1

VOUT2

SYNC

SW3

FB3

PGNDP

VINP

SLEW

PWRGD

SWP

VOUT3

CIN

CFLYBK

CBUCK

CINV

GNDP

SGND1

MVDD

MGPO3

SGPI3

MGPI2

MGPI1

SGPO2

SGPO1

MGND

Tx1

SVDD1

SVDD2

RFT1

RFB1

RFB3

RFT3

SVDD1

PWRGD

PG1

PG2

PG3

1:1

FEEDBACK AND

OVER VOLTAGE

CONTROL

INVERTING

SWITCHING

REGULATOR

FLYBACK

CONTROLLER

PLL

÷2

HIGH

EFFICIENCY

BUCK

MGND

DECODE

ENCODE

DECODE

ENCODE

DECODE

ENCODE

DECODE

MSS

MCK

SSS

SCK

CONTROL

BLOCK

CONTROL

BLOCK

SGND2

÷2

NOTES

1. CFLYBK IS THE FLYBACK REGULATOR OUTPUT CAPACITOR VALUE.

2. CBUCK IS THE BUCK REGULATOR OUTPUT CAPACITOR VALUE.

3. CINV IS THE INVERTING REGULATOR OUTPUT CAPACITOR VALUE.

Figure 64. Simplified Block Diagram

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