Table of Contents

Introduction.....................................................................................................................................................1

Features.................................................................................................................................................. 2

Applications.............................................................................................................................................3

1.

Functional Descriptions...........................................................................................................................6

2.

Electrical Specifications.......................................................................................................................... 7

2.1.

Absolute Maximum Ratings..........................................................................................................7

2.2.

Thermal Specifications................................................................................................................. 7

2.3.

Electrical Characteristics.............................................................................................................. 8

3.

Pin Configuration...................................................................................................................................15

4.

Package Specifications......................................................................................................................... 18

5.

Recommended PCB Layout..................................................................................................................19

6.

Theory of Operation.............................................................................................................................. 21

6.1.

Detection.................................................................................................................................... 21

6.2.

Physical Layer Classification......................................................................................................21

6.3.

Two-Events Detection and AT Flag............................................................................................ 21

6.4.

Soft Start and Inrush Current Protection.................................................................................... 22

6.5.

Over-Current Protection............................................................................................................. 22

6.6.

Power Good............................................................................................................................... 23

6.7.

Start-Up Supply.......................................................................................................................... 23

6.8.

PD Interface Thermal Protection................................................................................................ 23

6.9.

Bulk Capacitor Discharge...........................................................................................................23

6.10. DC-DC Start-Up......................................................................................................................... 23

6.11. Current Limit and Short Circuit Protection..................................................................................24

6.12. Low Power Mode Operation.......................................................................................................24

6.13. Input (VPP and VCC) Under Voltage Lock Out.......................................................................... 24

6.14. External Enable.......................................................................................................................... 24

7.

Ordering Information............................................................................................................................. 25

8.

Reference Documents.......................................................................................................................... 26

9.

Revision History.................................................................................................................................... 27

The Microchip Website.................................................................................................................................28

Product Change Notification Service............................................................................................................28

Customer Support........................................................................................................................................ 28

Microchip Devices Code Protection Feature................................................................................................ 28

Legal Notice................................................................................................................................................. 29

Trademarks.................................................................................................................................................. 29

PD70101 and PD70201

Datasheet

DS00003738A-page 4