UCD3138A64PFCR datasheet(2/80 Pages) TI

2 / 80 page

UCD3138128, UCD3138A64

SLUSBZ8A – JUNE 2014 – REVISED SEPTEMBER 2014

www.ti.com

Table of Contents

9.1

Overview ................................................................. 17

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

9.2

Functional Block Diagram ....................................... 18

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

9.3

Feature Description................................................. 19

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

9.4

Device Functional Modes........................................ 44

Description ............................................................. 3

9.5

Product Family Comparison ................................. 4

9.6

Synchronous Rectifier MOSFET Ramp And IDE

Product Feature Overview .................................... 5

Calculation ............................................................... 56

Pin Configuration and Functions ......................... 6

Applications and Implementation...................... 57

Specifications......................................................... 8

10.1

Application Information.......................................... 57

8.1

Absolute Maximum Ratings ..................................... 8

10.2

Typical Application ............................................... 58

8.2

Handling Ratings....................................................... 8

Power Supply Recommendations ..................... 69

8.3

Recommended Operating Conditions ....................... 9

Layout................................................................... 69

8.4

Thermal Information .................................................. 9

12.1

IC Grounding and Layout Guidelines.................... 69

8.5

Electrical Characteristics........................................... 9

12.2

Layout Examples................................................... 70

8.6

Timing Characteristics............................................. 11

Device and Documentation Support ................. 72

8.7

PMBUS/SMBUS/IC Timing2.................................... 12

13.1

Device Support...................................................... 72

8.8

Timing Requirements .............................................. 12

13.2

Documentation Support ........................................ 72

8.9

Power On Reset (POR) / Brown Out Detect

13.3

Trademarks ........................................................... 74

(BOD) ....................................................................... 14

13.4

Electrostatic Discharge Caution ............................ 74

8.10

Typical Clock Gating Power Savings .................... 15

13.5

Glossary ................................................................ 74

8.11

Typical Characteristics .......................................... 16

Mechanical, Packaging, and Orderable

Detailed Description ............................................ 17

Information ........................................................... 74

3 Revision History

Changes from Original (June 2014) to Revision A

Page

•

Added device UCD313128 .................................................................................................................................................... 1

•

Changed Feature From: "64 kB Program Flash Derivative.." To: "64 kB and 128 kB Program Flash Derivative..." ............. 1

•

Changed Feature From: 2-32 kB Program Flash Memory Banks To: 2-32 kB or 4-32 kB Program Flash Memory Banks .. 1

•

Added Feature: "Boot Flash Based Dual Memory..." ............................................................................................................. 1

•

Changed Feature From: 4 kB Data RAM To: 8 kB Data RAM .............................................................................................. 1

•

Changed Feature From: "8 kB Boot ROM Enables..." To: "4 kB Boot ROM Enables..." ....................................................... 1

•

Changed From: UCD3138A64 to UCD3138x throughout the document................................................................................ 3

•

Changed the Product Family Comparison table..................................................................................................................... 4

•

Deleted table: Summary Of Key Differences Between UCD3138x & UCD3138.................................................................... 5

•

Changed title From: POWER ON RESET AND BROWN OUT (V33D pin, See Figure 3) To: POWER ON RESET

AND BROWN OUT (V33A pin, See Figure 3)...................................................................................................................... 10

•

Changed title From: POWER ON RESET AND BROWN OUT (V33A pin, See Figure 3) To: POWER ON RESET

AND BROWN OUT (V33A pin, See Figure 3)...................................................................................................................... 12

•

Changed From: V33D To: V33A in the definitions list following Figure 3 ........................................................................... 14

•

Changed paragraph 2 of the Memory section From: 2048x32-bit Boot ROM To: 1024x32-bit Boot ROM ........................ 17

•

Changed text in the Memory section description From: The availability of 64 kB of program Flash memory in 2-32

kB banks, enables the designers to implement dual images To: The availability of 64 kB or 128 kB of program Flash

memory in 2-32 kB or 4-32 kB banks, enables the designers to implement multiple images.............................................. 17

•

Added a 2 new paragraphs to the end of the Memory section description. ......................................................................... 17

•

Changed the Memory Map (After Reset Operation) to include Program Flash 2 and Program Flash 3 ............................ 53

•

Changed the Memory Map (Normal Operation) to include Program Flash 2 and Program Flash 3 ................................... 53

•

Added Figure 36 .................................................................................................................................................................. 55

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