STCC2540 datasheet(9/32 Pages) STMICROELECTRONICS

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STCC2540

Electrical characteristics

Charger emulator - divider mode

VDM

DM_IN output voltage

Device set to DCP auto-detect

mode or divider mode,

VIN = 5.0 V

1.96

2.04

VDP

DP_IN output voltage

2.65

2.7

2.75

RDM

DM_IN output resistance

Device set to DCP auto-detect

mode or divider mode

RDP

DP_IN output resistance

Charger emulator - BC1.2 CDP mode

VDM_SRC

Voltage source on DM_IN for

CDP detection

VDP_IN = 0.6 V, device in CDP

BC1.2 mode

0.5

0.6

0.7

VDAT_REF

DP_IN rising voltage

threshold to turn on

VDM_SRC

IDM_IN = -250 µA, device in

CDP BC1.2 mode

0.25 0.32

0.4

VDAT_REF_HYST

VDAT_REF hysteresis

VLGC_SRC

DP_IN rising voltage

threshold to turn off

VDM_SRC

0.8

VLGC_SRC_HYST

VLGC_SRC hysteresis

IDP_SINK

DP_IN sink current

0.4 < VDP_IN < 0.8 V, device in

CDP BC1.2 mode

150

µA

Charger emulator - timings

tCHG_DGL_ON

Charging indication ON

deglitch delay

From IOUT > IOUT _TH to

CHARGING asserted

0.5

tCHG_DGL_OFF

Charging indication OFF

deglitch delay

From IOUT < IOUT_TH to

CHARGING deasserted

tVDM_SRC_ON

DM_IN voltage source turn-

on time

From VDP_IN 0 V -> 0.6 V to

VDM_IN = VDM_SRC, CTLx

configured for CDP BC1.2

tVDM_SRC_OFF

DM_IN voltage source turn-

off time

From VDP_IN 0.6 V -> 0 V to

VDM_IN = 0 V, CTLx configured

for CDP BC1.2

1.3

tVBUS_REAPP

OUT discharge pulse width

From VOUT falls to 0.7 V during

discharge to VOUT returning to

90%.

300

350

400

Table 4. Electrical characteristics VIN = 4.5 to 5.5 V, -40 °C < TJ < 125 °C

(unless otherwise specified) (continued)

Symbol

Parameter

Conditions

Min. Typ. Max.

Unit

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