ADP1055ACPZ-R7 datasheet(3/140 Pages) AD

3 / 140 page

Data Sheet

ADP1055

Rev. A | Page 3 of 140

Black Box Readback....................................................................45

Black Box Power Sequencing.....................................................45

Power Supply Calibration and Trim .............................................46

Voltage Calibration and Trim....................................................46

CS1 Trim ......................................................................................46

VFF Calibration and Trim .........................................................46

PMBus Digital Communication....................................................47

Features.........................................................................................47

Overview ......................................................................................47

Transfer Protocol.........................................................................47

Data Transfer Commands..........................................................48

Group Command Protocol........................................................49

Clock Generation and Stretching..............................................49

Start and Stop Conditions..........................................................49

Repeated Start Condition...........................................................49

General Call Support ..................................................................49

Alert Response Address (ARA).................................................49

PMBus Address Selection ..........................................................50

Fast Mode .....................................................................................50

10-Bit Addressing........................................................................50

Packet Error Checking................................................................50

Electrical Specifications..............................................................50

Fault Conditions..........................................................................50

Timeout Conditions ...................................................................51

Data Transmission Faults...........................................................51

Data Content Faults ....................................................................52

Layout Guidelines............................................................................53

CS2+ and CS2− Pins...................................................................53

VS+ and VS− Pins .......................................................................53

VDD Pin.......................................................................................53

SDA and SCL Pins ......................................................................53

CS1 Pin .........................................................................................53

Exposed Pad.................................................................................53

VCORE Pin..................................................................................53

RES Pin.........................................................................................53

JTD and JRTN Pins.....................................................................53

OVP Pin .......................................................................................53

SYNC Pin .....................................................................................53

AGND and DGND .....................................................................53

EEPROM ..........................................................................................54

Overview ......................................................................................54

Page Erase Operation .................................................................54

Read Operation (Byte Read and Block Read) .........................54

Write Operation (Byte Write and Block Write) ......................55

EEPROM Password ....................................................................55

Downloading EEPROM Settings to Internal Registers .........56

Saving Register Settings to the EEPROM ................................56

EEPROM CRC Checksum.........................................................56

Software GUI ...................................................................................57

Standard PMBus Commands Supported by the ADP1055.......58

Manufacturer Specific Commands...............................................60

Standard PMBus Command Descriptions ..................................62

Standard PMBus Commands ....................................................62

Manufacturer Specific PMBus Command Descriptions ...........86

Supported Switching Frequencies...............................................126

Outline Dimensions......................................................................140

Ordering Guide .........................................................................140

REVISION HISTORY

3/15—Rev. 0 to Rev. A

Changes to Table 1 ............................................................................7

Changes to Snubber Configuration Section ................................31

Change to Debounce Bit, Table 159..............................................93

Changes to Supported Switching Frequencies Section ............126

3/14—Revision 0: Initial Version

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