STUSBCD01B 데이터 시트보기 (PDF) - STMicroelectronics

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STUSBCD01B

USB charger detection interface

STMicroelectronics 

STUSBCD01B

Electrical characteristics

Table 9.

Symbol

DC electrical characteristics (analog pins)

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

Parameter

Test conditions

Min.

Typ.

Max. Unit

VBUS VBUS voltage

IVBUS VBUS current

VBUS_CLMP VBUS clamping voltage

VTH_VBUS VBUS voltage detection threshold

ZIN_VBUS VBUS input impedance

CIN

DP, DM input capacitance

VDAT_SRC Data source voltage (1)

VDAT_REF Data detect voltage

IDAT_SINK Data sink current

IDCH_SRC

Dedicated charger detection DP

source current

VBUS=0 to 5.25V

REXT = 470Ω

VBUS max 5.25V

IDP=IDAT_SRC (2)

VDM=VDAT_SINK (3)

0

5.25

10

5.3

6

2

4

400

5

0.615

0.65

0.7

0.25

0.34

50

100

15

30

VTHDPL DP low threshold

ZPD_DET DETECT pin pull down impedance /OE=1

VOH_DET DETECT output driving voltage

IOH_DET = 0.5mA,

VBAT = 2.2 to 4.5V

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.

0.6

240

300

VBAT–0.2

360

VBAT

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.

V

µA

V

V

kΩ

pF

V

V

µA

µA

V

kΩ

V

Unit

TVBUS_DBNC VBUS debounce time

5

TDP_SRC_ON DP source on time

Current sink method

100

TCHGR_DET_DBNC Charger detect debounce

Current sink method

20

TDPSRC_HICRNT

DP source off to DETECT high

time

Current sink method

40

TD_VDAT

VDAT_SRC on delay

Current sink method

5

TVBUS_DET_CS VBUS attach to DETECT high time Current sink method

150

TVBUS_DET_DC VBUS attach to DETECT high time Dedicated charger method 145

TIDCH_SRC_ON IDCH_SRC on time (2)

Dedicated charger method 140

TIDAT_SINK_ON IDAT_SINK on time

Dedicated charger method 40

TD_IDAT_SINK IDCH_SRC on to IDAT_SINK on delay Dedicated charger method 100

TPER_DET

Periodic detection period

Hardware detection, No

charger

1

TW_H/L

Minimum pulse width High/Low All digital inputs

2

1. All AC parameters guaranteed by design but not production tested.

2. TIDCH_SRC_ON = TD_IDAT_SINK + TIDAT_SINK_ON

8 ms

170 ms

40 ms

70 ms

8 ms

270 ms

248 ms

240 ms

70 ms

170 ms

1.6 s

µs

11/19

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