STCF04 datasheet(13/43 Pages) STMICROELECTRONICS

13 / 43 page

STCF04

Electrical characteristics

Doc ID 022927 Rev 3

13/43

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Efficiency of the

converter

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

Efficiency in Torch mode

operation

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

TCHV_H=1 ITORCH=320 mA

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

TCHV_H=0 ITORCH=320 mA

VSUPHYST

SuperCap regulated

voltage hysteresis

VSUPMAX=5.5 V, VSUPMIN=5.5 V-

VSUPHYST, TCHV_H=1 or

FLASH_ON=1

1.3

VSUPMAX=5.0 V, VSUPMIN=5.0 V-

VSUPHYST, TCHV_H=1 or

FLASH_ON=1

0.8

VSUPMAX=4.5 V, VSUPMIN=4.5 V-

VSUPHYST, TCHV_H=1 or

FLASH_ON=1

0.3

VSUPMAX=4.2 V, VSUPMIN=4.2 V-

VSUPHYST, TCHV_H=0

0.2

VMONIREADY

SuperCap voltage ready

hysteresis

PWR_ON=0, VDC_0 or/and VDC_1=1

0.2

OTP

Overtemperature

protection

VIN=5.5 V

140

OTHYST

Overtemperature

hysteresis

VIN=5.5 V

V_NTCW

NTC threshold warning

Idle mode, INTC=2 mA max.

0.56

V_NTCH

NTC threshold hot

Idle mode, INTC=2 mA max.

1.2

VOL

Output logic signal level

low ATN, READY

IATN, READY=+10 mA

0.3

IOZ

Output logic leakage

current ATN, READY

VATN, READY =3.3 V

VIL

Input logic signal level

SCL, SDA, TEST,

RESET, SCHRG,

FLASH, TORCH, ADD

VIN=2.7 V to 5.5 V

00.4

VIH

1.4

3.0

ILSCON

Input reset current

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

VLSIN

Analog input signal

range

VIN=2.7 V to 5.5 V

0.1

1.6

VDRIVE

MOSFET driver output

Source: IDRIVE = -8 mA

4.27

Sink: IDRIVE = +8 mA

1.05

Reference voltage

range

EXT_REG=1 (1)

0.12

1.2

TON

LED current rise time

ILED=0 to ILED=max.

Flash triggered by external trig

0.3

Table 6.

Electrical characteristics (continued)

STCF04 数据表(PDF) 13 Page - STMicroelectronics

STCF04 数据表(HTML) 13 Page - STMicroelectronics

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