UCD3138 datasheet(4/99 Pages) TI2

4 / 99 page

Table of Contents

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

2 Applications..................................................................... 1

3 Description.......................................................................2

4 Functional Block Diagram.............................................. 3

5 Revision History.............................................................. 4

6 Device Comparison Table...............................................7

6.1 Product Family Comparison........................................7

6.2 Product Selection Matrix............................................. 8

7 Pin Configuration and Functions...................................9

7.1 UCD3138RGC 64 QFN Pin Attributes...................... 11

7.2 UCD3138RHA, UCD3138RMH and

UCD3138RJA Pin Attributes....................................... 13

8 Specifications................................................................ 14

8.1 Absolute Maximum Ratings...................................... 14

8.2 ESD Ratings............................................................. 14

8.3 Recommended Operating Conditions.......................14

8.4 Thermal Information..................................................14

8.5 Electrical Characteristics...........................................15

8.6 Timing and Switching Characteristics....................... 17

8.7 Power Supply Sequencing........................................19

8.8 Peripherals................................................................19

8.9 Typical Temperature Characteristics.........................25

9 Detailed Description......................................................26

9.1 Overview................................................................... 26

9.2 ARM Processor.........................................................26

9.3 Memory..................................................................... 26

9.4 System Module......................................................... 28

9.5 Feature Description...................................................30

9.6 Device Functional Modes..........................................49

10 Application and Implementation................................ 56

10.1 Application Information........................................... 56

10.2 Typical Application.................................................. 57

11 Power Supply Recommendations..............................68

11.1 Introduction To Power Supply and Layout

Recommendations...................................................... 68

11.2 3.3-V Supply Pins....................................................68

11.3 Recommendation for V33 Ramp up Slew Rate

for UCD3138 and UCD3138064..................................68

11.4 Recommendation for RC Time Constant of

RESET Pin for UCD3138 and UCD3138064.............. 69

12 Layout...........................................................................72

12.1 Layout Guidelines................................................... 72

12.2 Layout Example...................................................... 77

13 Device and Documentation Support..........................82

13.1 Device Support....................................................... 82

13.2 Documentation Support.......................................... 83

13.3 Receiving Notification of Documentation Updates..83

13.4 Support Resources................................................. 83

13.5 Trademarks.............................................................83

13.6 Electrostatic Discharge Caution..............................84

13.7 Glossary..................................................................84

14 Mechanical Packaging and Orderable Information.. 84

14.1 Packaging Information............................................ 84

5 Revision History

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Changes from Revision I (January 2017) to Revision J (November 2021)

Page

• Change sync feature description to say it works with all UCD3138 family members instead of just

UCD3138064. Split Device Overview section into 4 sections to conform to TI data sheet standards. ..............1

• Change number of ADC channels to 15 since there are 14 external channels and 1 channel for the internal

temperature sensor.............................................................................................................................................2

• update Product Family Comparison to show full UCD family ............................................................................ 7

• Added mention of debugging capability to the JTAG pin descriptions and added note that the RMH package

is not recommended for new designs................................................................................................................. 9

• Added DAC Output as an alternative pin out for pins 2, 3, and 4..................................................................... 13

• Correct location of PMBus/SMBus/I2C rise and fall time test conditions Table 8-1 ......................................... 17

• Added "using the EADCs as a source" to the digital comparator description ..................................................39

• Replaced the Power Suppply and Layout Guidelines Section with the Power Supply Recommendations

Section and Layout Section. The new content is copied directly from the UCD3138 Family Practical Design

Guideline Application Note. ............................................................................................................................. 68

• Updated FUSION_DIGITAL_POWER_STUDIO URLs. Moved all CCS references to the Code Composer

Studio section and updated them. Also updated the list of documents............................................................ 82

• Changed References section .......................................................................................................................... 83

Changes from Revision H (October 2016) to Revision I (January 2017)

Page

• Added updated Layout Guidelines section and added Layout Example images..............................................68

UCD3138

SLUSAP2J – MARCH 2012 – REVISED NOVEMBER 2021

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