TPS65983B datasheet(71/117 Pages) TI1

Part #	TPS65983B

Description	USB Type-C and USB PD Controller, Power Switch, and High Speed Multiplexer

PDF	117 Pages

Scroll/Zoom	100%

Manufacturer	TI1 [Texas Instruments]

Direct Link	http://www.ti.com

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71 / 117 page

VIN_3V3 Valid

Check

BUSPOWERZ

VBUS Present

Configure for VBUS

Power

Check

BUSPOWERZ

Enable PP_HV as

SINK

Enable PP_EXT as

SINK

” 2.4 V

Yes

> 0.8 V

” 0.8 V

Load App Code

Yes

>2.4 V

C Initiated

TPS65983B

www.ti.com

SLVSDM6A – OCTOBER 2016 – REVISED OCTOBER 2016

Product Folder Links: TPS65983B

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Device Functional Modes (continued)

9.4.4 Dead-Battery Condition

After I2C configuration concludes the TPS65983B checks VIN_3V3 to determine the cause of device boot. If the

device is booting from a source other than VIN_3V3, the dead battery flow is followed to allow for the rest of the

system to receive power. The state of the BUSPOWERZ pin is read to determine power path configuration for

dead battery operation. After the power path is configured, the TPS65983B will continue through the boot

process. Figure 66 depicts the full dead battery process.

Figure 66. Dead-Battery Condition Flow Diagram

TPS65983B Datasheet(PDF) 71 Page - Texas Instruments