STCF04 Datasheet, PDF(13/43 Page) STMicroelectronics – Cell phones and smartphones

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STCF04 Datasheet, PDF (13/43 Pages) STMicroelectronics – Cell phones and smartphones

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STCF04

Electrical characteristics

Table 6. Electrical characteristics (continued)

Symbol

Parameter

Test conditions

Min.

Efficiency of the

converter

VIN=3.7 V, VDC_0,1=1, IDC0=1

Î½

VIN=2.7 V to 4.2 V, IDC_0=1,

Efficiency in Torch mode TCHV_H=1 ITORCH=320 mA

operation

VIN=2.7 V to 4.2 V, IDC_0=1,

TCHV_H=0 ITORCH=320 mA

VSUPMAX=5.5 V, VSUPMIN=5.5 V-

VSUPHYST, TCHV_H=1 or

FLASH_ON=1

VSUPHYST

SuperCap regulated

voltage hysteresis

VSUPMAX=5.0 V, VSUPMIN=5.0 V-

VSUPHYST, TCHV_H=1 or

FLASH_ON=1

VSUPMAX=4.5 V, VSUPMIN=4.5 V-

VSUPHYST, TCHV_H=1 or

FLASH_ON=1

VSUPMAX=4.2 V, VSUPMIN=4.2 V-

VSUPHYST, TCHV_H=0

VMONIREADY

SuperCap voltage ready

hysteresis

PWR_ON=0, VDC_0 or/and VDC_1=1

OTP

Overtemperature

protection

VIN=5.5 V

OTHYST

Overtemperature

hysteresis

VIN=5.5 V

V_NTCW

V_NTCH

VOL

NTC threshold warning Idle mode, INTC=2 mA max.

NTC threshold hot

Idle mode, INTC=2 mA max.

Output logic signal level

low ATN, READY

IATN, READY=+10 mA

IOZ

Output logic leakage

current ATN, READY

VATN, READY =3.3 V

VIL

Input logic signal level

VIH

SCL, SDA, TEST,

RESET, SCHRG,

FLASH, TORCH, ADD

VIN=2.7 V to 5.5 V

ILSCON

VLSIN

Input reset current

Analog input signal

range

VIN=2.7 V to 5.5 V, VREF=1.6 V

VIN=2.7 V to 5.5 V

VDRIVE

MOSFET driver output

Reference voltage

range

Source: IDRIVE = -8 mA

Sink: IDRIVE = +8 mA

EXT_REG=1 (1)

TON

LED current rise time

ILED=0 to ILED=max.

Flash triggered by external trig

0

1.4

0.1

0.12

Typ.

85

50

70

1.3

0.8

0.3

0.2

0.2

140

20

0.56

1.2

4.27

1.05

Max. Unit

%

V

V

C

C

V

V

0.3

V

1

mA

0.4

V

3.0

10 mA

1.6

V

V

V

1.2

V

0.3 ms

Doc ID 022927 Rev 3

13/43

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