STUSB4500 datasheet(37/41 Pages) STMICROELECTRONICS

37 / 41 page

3.3.2

Decision algorithm description ............................................. 11

3.3.3

Requesting maximum source current ........................................ 11

3.3.4

Decision algorithm application with examples .................................. 12

3.4

VBUS power path control ....................................................... 12

3.4.1

VBUS monitoring ....................................................... 12

3.4.2

VBUS discharge ........................................................ 13

3.4.3

VBUS power path assertion ............................................... 13

3.5

Dead battery mode ............................................................ 14

3.6

High voltage protections........................................................ 15

3.7

Hardware fault management .................................................... 15

3.8

Debug accessory mode detection................................................ 15

I²C interface ......................................................................16

4.1

Read and write operations ...................................................... 16

4.2

Timing specifications........................................................... 17

Start-up configuration ............................................................18

5.1

User-defined parameters ....................................................... 18

5.2

Default start-up configuration.................................................... 18

Application .......................................................................22

6.1

General information ........................................................... 22

6.1.1

Power supplies ......................................................... 22

6.1.2

Powering a system under high charging profile only ............................. 22

6.1.3

Connection to MCU or application processor .................................. 22

6.2

Typical applications............................................................ 24

6.2.1

Sink USB PD application with dual high power charging paths ..................... 24

Electrical characteristics..........................................................25

7.1

Absolute maximum ratings...................................................... 25

7.2

Operating conditions........................................................... 25

7.3

Electrical and timing characteristics .............................................. 27

Package information..............................................................29

8.1

QFN24 EP 4x4 mm package information.......................................... 29

8.2

WLCSP (2.6x2.6x0.5) 25 bumps package information............................... 30

STUSB4500

Contents

DS12499 - Rev 2

page 37/41

STUSB4500 数据表(PDF) 37 Page - STMicroelectronics

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