ADM1177-1ARMZ-R7 Просмотр технического описания (PDF) - Analog Devices

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ADM1177-1ARMZ-R7

Hot Swap Controller and Digital Power Monitor with Soft Start Pin

Analog Devices 

ADM1177

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications....................................................................................... 1

General Description ......................................................................... 1

Functional Block Diagram .............................................................. 1

Revision History ............................................................................... 2

Specifications..................................................................................... 3

Absolute Maximum Ratings............................................................ 5

Thermal Characteristics .............................................................. 5

ESD Caution.................................................................................. 5

Pin Configuration and Function Descriptions............................. 6

Typical Performance Characteristics ............................................. 7

Overview of the Hot Swap Function............................................ 12

Undervoltage Lockout ............................................................... 12

ON Function ............................................................................... 12

TIMER Function ........................................................................ 12

GATE and TIMER Functions During a Hot Swap

Operation..................................................................................... 13

Calculating Current Limits and Fault Current Limit Time .. 13

REVISION HISTORY

10/12—Rev. B to Rev. C

Changes to Table 1............................................................................ 4

Changes to Kelvin Sense Resistor Connection Section ............. 22

Deleted Figure 49, Renumbered Sequentially............................. 22

Updated Outline Dimensions ....................................................... 23

Changes to Ordering Guide .......................................................... 23

2/08—Rev. A to Rev. B

Changed VVCC to VCC Throughout ................................................. 3

Changes to Input Current for 00 Decode, IADRLOW Parameter......... 3

Changes to Input Current for 11 Decode, IADRHIGH Parameter ........ 3

Added ADC Conversion Time Parameter .................................... 4

Added Fast Overcurrent Response Time Parameter ................... 4

Added Endnote 2 and Endnote 3 ................................................... 4

Changes to Figure 14........................................................................ 8

Changes to Figure 15 Caption......................................................... 8

Changes to Figure 24...................................................................... 10

Changes to TIMER Function Section.......................................... 12

Changes to Table 5.......................................................................... 15

Changes to General I2C Timing Section...................................... 15

Changes to Quick Command Section ......................................... 17

Changes to Figure 35...................................................................... 17

Data Sheet

Initial Timing Cycle ................................................................... 13

Hot Swap Retry Cycle on the ADM1177-1............................. 14

Soft Start (SS Pin) ....................................................................... 14

Voltage and Current Readback ..................................................... 15

Serial Bus Interface..................................................................... 15

Identifying the ADM1177 on the I2C Bus............................... 15

General I2C Timing.................................................................... 15

Write and Read Operations........................................................... 17

Quick Command........................................................................ 17

Write Command Byte ................................................................ 17

Write Extended Command Byte .............................................. 18

Read Voltage and/or Current Data Bytes ................................ 19

Applications Information .............................................................. 21

Applications Waveforms............................................................ 21

Kelvin Sense Resistor Connection ........................................... 22

Outline Dimensions ....................................................................... 23

Ordering Guide .......................................................................... 23

Changes to Table 7.......................................................................... 17

Changes to Write Extended Command Byte Section................ 18

Changes to Figure 39...................................................................... 18

Changes to Table 9 and Table 11 .................................................. 18

Changes to Converting ADC Codes to Voltage and

Current Readings Section.............................................................. 19

4/07—Rev. 0 to Rev. A

Changes to GATE and TIMER Functions During

a Hot Swap Section......................................................................... 14

Changes to Calculating Current Limits and Fault Current

Limit Time Section......................................................................... 14

Changes to Initial Timing Cycle Section..................................... 14

Changes to Soft Start (SS Pin) Section ........................................ 15

Changes to Table 5.......................................................................... 16

Changes to Figure 34 and Figure 35 ............................................ 17

Changes to Figure 39...................................................................... 19

Changes to Figure 41 and Figure 42 ............................................ 20

Added Applications Information Heading ................................. 22

9/06—Revision 0: Initial Version

Rev. C | Page 2 of 24

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