STUSBCD01B View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

STUSBCD01B

USB charger detection interface

STMicroelectronics 

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Timing diagrams

7

Timing diagrams

Figure 4. Current sink method (with charger connected)

VBUS

VDAT_SRC

Applied to DP

IDAT_SINK

Applied to DM

VBUS+

VBUS-

TVBUS_DBNC

5ms

TD_VDAT

5ms

TDP_SRC_ON

>100ms

0.615-0.7V

50-100µA

DM_SRC

Either returned VDAT_SRC if

dedicated charger or applied

VDAT_SRC by HOST charger

TDM_SRC_EN

<20ms

TDM_SRC_DIS

<20ms

VDAT_DET

VDAT_DET (comparator

output, see Functional

Diagram) must be high

for >20ms for charger

detection to be valid

DETECT

>20ms

TCHGR_DET_DBNC

150ms < TVBUS_DET_CS < 270ms

>40ms

TDPSRC_HICRNT

STUSBCD01B

TVBUS_DBNC

5ms

12/19

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