P9412 Datasheet

R35DS0011EU0120 Rev.1.2

Jul.6.21

Page 2

Contents

1.

Pin Information .............................................................................................................................................. 4

1.1

Pin Assignments .................................................................................................................................... 4

1.2

Pin Descriptions..................................................................................................................................... 5

2.

Specifications................................................................................................................................................. 7

2.1

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

2.2

Thermal Characteristics 2,3,4,5 ................................................................................................................ 7

2.3

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

3.

Functional Description................................................................................................................................ 12

3.1

Wireless Power Charging System ....................................................................................................... 12

3.2

Theory of Operation............................................................................................................................. 12

3.2.1.

Overview ............................................................................................................................... 12

3.2.2.

Power Control ....................................................................................................................... 13

3.3

Status and Interrupt Indicators ............................................................................................................ 13

3.4

Multiple-Time Programmable Memory ................................................................................................ 14

3.5

Tx Mode............................................................................................................................................... 14

3.6

Synchronous Rectifier.......................................................................................................................... 14

3.6.1.

VRECT Voltage Range ......................................................................................................... 14

3.6.2.

Over-Voltage Protection........................................................................................................ 14

3.7

Over Current, Over-Temperature Protection, and Thermal Shutdown ............................................... 15

3.8

Enable Input......................................................................................................................................... 15

3.9

LDO Regulators ................................................................................................................................... 15

3.10 Capacitor Divider ................................................................................................................................. 15

3.11 Operating Configurations (Bypass and Capacitor Divider).................................................................. 16

3.12 V5P0AP and V1P8_AP Inputs............................................................................................................. 16

3.13 WPC Mode Characteristics ................................................................................................................. 16

3.13.1.

Start-Up ................................................................................................................................. 16

3.13.2.

Power Transfer...................................................................................................................... 16

3.13.3.

Advanced Foreign Object Detection (FOD) WPC MODE..................................................... 17

3.13.4.

Status/Interrupt Output.......................................................................................................... 17

3.13.5.

WPC Modulation/Communication ......................................................................................... 17

3.13.6.

Bit Encoding Scheme............................................................................................................ 18

3.13.7.

System Feedback Control..................................................................................................... 19

3.13.8.

Selection................................................................................................................................ 19

3.13.9.

Ping ....................................................................................................................................... 19

3.13.10. Identification and Configuration (ID and Config) ................................................................... 19

3.13.11. Negotiation ............................................................................................................................ 20

3.13.12. Calibration ............................................................................................................................. 20

3.13.13. Power Transfer...................................................................................................................... 20

3.13.14. Renegotiation ........................................................................................................................ 20

3.13.15. End of Power Transfer (EPT)................................................................................................ 20

3.14 External Components .......................................................................................................................... 20

3.15 Rx Wireless Power Coil ....................................................................................................................... 20

3.16 Resonance Capacitors ........................................................................................................................ 20