STUSBCD01B datasheet(11/19 Pages) STMICROELECTRONICS

部件名	STUSBCD01B

功能描述	USB charger detection interface

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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11 / 19 page

STUSBCD01B

Electrical characteristics

11/19

Table 9.

DC electrical characteristics (analog pins)

(VBAT = 4.2 V, TA = 25 °C, specifications over temperature, -40 to 85 °C)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

VBUS

VBUS voltage

0

5.25

V

IVBUS

VBUS current

VBUS=0 to 5.25V

10

µA

VBUS_CLMP VBUS clamping voltage

REXT = 470Ω

5.3

6

V

VTH_VBUS VBUS voltage detection threshold

2

4

V

ZIN_VBUS

VBUS input impedance

VBUS max 5.25V

400

k

Ω

CIN

DP, DM input capacitance

5

pF

VDAT_SRC Data source voltage

(1)

IDP=IDAT_SRC

(2)

0.615

0.65

0.7

V

VDAT_REF

Data detect voltage

0.25

0.34

V

IDAT_SINK

Data sink current

VDM=VDAT_SINK

(3)

50

100

µA

IDCH_SRC

Dedicated charger detection DP

source current

15

30

µA

VTHDPL

DP low threshold

0.6

V

ZPD_DET

DETECT pin pull down impedance /OE=1

240

300

360

k

Ω

VOH_DET

DETECT output driving voltage

IOH_DET = 0.5mA,

VBAT = 2.2 to 4.5V

VBAT–0.2

VBAT

V

1.

Measured at DP pin. Includes effect of internal switches.

2.

IDAT_SRC = 0 to 200 µA according to USB specs.

3.

VDAT_SINK = 0.15 V to 3.6 V according to USB specs.

Table 10.

AC electrical characteristics (1)

(VBAT = 4.2 V, TA = 25 °C, specifications over temperature, -40 to 85 °C)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

TVBUS_DBNC

VBUS debounce time

5

8

ms

TDP_SRC_ON

DP source on time

Current sink method

100

170

ms

TCHGR_DET_DBNC Charger detect debounce

Current sink method

20

40

ms

TDPSRC_HICRNT

DP source off to DETECT high

time

Current sink method

40

70

ms

TD_VDAT

VDAT_SRC on delay

Current sink method

5

8

ms

TVBUS_DET_CS

VBUS attach to DETECT high time

Current sink method

150

270

ms

TVBUS_DET_DC

VBUS attach to DETECT high time

Dedicated charger method

145

248

ms

TIDCH_SRC_ON

IDCH_SRC on time

(2)

Dedicated charger method

140

240

ms

TIDAT_SINK_ON

IDAT_SINK on time

Dedicated charger method

40

70

ms

TD_IDAT_SINK

IDCH_SRC on to IDAT_SINK on delay

Dedicated charger method

100

170

ms

TPER_DET

Periodic detection period

Hardware detection, No

charger

11.6

s

TW_H/L

Minimum pulse width High/Low

All digital inputs

2

µs

1.

All AC parameters guaranteed by design but not production tested.

2.

TIDCH_SRC_ON = TD_IDAT_SINK + TIDAT_SINK_ON

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