STUSBCD01B 데이터 시트보기 (PDF) - STMicroelectronics

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STUSBCD01B

USB charger detection interface

STMicroelectronics 

Functional tables

4

Functional tables

STUSBCD01B

Table 3. Operating mode

SHUTDOWN /OE

VIO

VBAT

VBUS

X

X

X

Not available

H

X

Available

Available

-

- Not available Available

L

X

Available

Available

-

- Not available Available

1. Low when value is not forced by controller.

X

Not available

Not available

Available

Available

STATUS-

DETECT

X

X (1)

L

L

L

Operating mode

Power down

Standby (SW control)

Standby (NO SW control)

Active, SW detection

Active, HW detection

Table 4. Output signals

VIO

Shutdown

Detection result

/OE

Status/Method

Detect

Available

L

Charger detected

L

H (pull up active) Active (driving to VBAT)

Available

L

Charger detected

H

H (pull up active) L (internally pulled down)

Available

L

Charger not detected

X

L (pull down active) L (internally pulled down)

Available

H

-

X

Input

L (internally pulled down)

Not available

-

Not available

-

Charger detected

-

Charger not detected

-

Undefined

Undefined

Active (driving to VBAT)

L (internally pulled down)

Table 5. Pin states during detection

Detection method

DP

Dedicated

Current sink

Outputs IDCH_SRC

Outputs VDAT_SRC

Note:

See timing diagrams for more details.

DM

Sinks IDAT_SINK

Sinks IDAT_SINK

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