TPS65921 datasheet(3/70 Pages) TI2

3 / 70 page

TPS65921

www.ti.com

SWCS048G – MARCH 2010 – REVISED SEPTEMBER 2014

Table of Contents

Device Overview

......................................... 1

4.18

Battery Threshold Levels

............................ 24

1.1

Features

.............................................. 1

4.19

Power Consumption

................................. 25

1.2

Applications

........................................... 1

4.20

USB Charge Pump

................................. 25

1.3

Description

............................................ 1

4.21

Hot-Die Detection and Thermal Shutdown

.......... 26

1.4

Functional Block Diagram

............................ 2

4.22

USB

................................................. 26

Revision History

......................................... 4

4.23

MADC

............................................... 31

Terminal Configuration and Functions

.............. 5

4.24

TPS65921 Interface Target Frequencies

........... 33

3.1

Signal Descriptions

................................... 6

4.25

JTAG Interfaces

..................................... 36

Specifications

........................................... 10

Detailed Description

................................... 38

4.1

Absolute Maximum Ratings

......................... 10

5.1

Functional Block Diagram

........................... 38

4.2

Handling Ratings

.................................... 10

5.2

Clock System

....................................... 39

4.3

Recommended Operating Conditions

............... 10

5.3

32-kHz Oscillator

.................................... 39

4.4

Thermal Resistance Characteristics for ZQZ

5.4

Clock Slicer

......................................... 40

Package

............................................. 13

5.5

Power Path

.......................................... 43

4.5

Crystal Oscillator

.................................... 13

5.6

Charger Detection

................................... 54

4.6

Clock Slicer

......................................... 14

5.7

MADC

............................................... 57

4.7

32KCLKOUT Output Clock

.......................... 14

5.8

JTAG Interfaces

..................................... 58

4.8

HFCLKOUT Output Clock

........................... 15

Device and Documentation Support

............... 60

4.9

VDD1 DC-DC Converter

............................ 17

6.1

Device Support

...................................... 60

4.10

VDD2 DC-DC Converter

............................ 18

6.2

Documentation Support

............................. 61

4.11

VIO DC-DC Converter

.............................. 19

6.3

Trademarks

.......................................... 61

4.12

VMMC1 Low Dropout Regulator

.................... 20

6.4

Electrostatic Discharge Caution

..................... 61

4.13

VDAC Low Dropout Regulator

...................... 21

6.5

Export Control Notice

............................... 61

4.14

VAUX2 Low Dropout Regulator

..................... 22

6.6

Glossary

............................................. 61

4.15

VPLL1 Low Dropout Regulator

..................... 23

Mechanical Packaging and Orderable

4.16

Internal LDOs

....................................... 24

Information

.............................................. 62

4.17

Voltage References

................................. 24

7.1

Packaging Information

.............................. 62

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