STCF06 datasheet(11/33 Pages) STMICROELECTRONICS

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Electrical characteristics

STCF06

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Electrical characteristics

Table 6. Electrical characteristics

(TJ = -40 to 85 °C, VBAT = PVBAT = 3.6 V, 2 x CI = 10 µF, CO = 10 µF, L = 1.5 µH, RFL = 0.15 Ω, RTR = 1 Ω,

RX = 15 kΩ, typ. values are at TJ = 25 °C, unless otherwise specified).

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

Input operation supply voltage

2.7

5.5

VPW_ON

RESET

Power-ON reset threshold

VI rising

2.3

Output current adjustment

range IFLASH

Flash mode for VI = 3.5 V to 5.5 V

117

1500

Flash mode for VI = 3.0 V to 3.3 V

117

1300

Flash mode for VI = 2.7 V to 5.5 V

117

1000

Output current adjustment

range ITORCH

Torch mode VI = 2.7 V to 5.5 V

370

Auxiliary LED output current

adjustment range IAUXLED

Ready mode, VI = 2.7 V to 5.5 V

Regulated voltage range

2.5

5.0

FB1

Feedback voltage

Torch mode

250

FB2

Feedback voltage

Flash mode

250

ΔIO

Output current tolerance

Flash mode, IO = 160 mV/RFL

-10

RON_

FB1-FB2 ON resistance

Torch mode, IO = 200 mA

Quiescent current in

SHUTDOWN mode

µA

Quiescent current in ready -

mode

1.8

Frequency

VI = 2.7 V

1.8

MHz

Efficiency of the chip itself

Note 2

VI = 3.2 to 4.2 V, Flash Mode,

IO = 2200 mA

Efficiency of the whole

application Note 1

VI = 3.2 to 4.2 V, Flash Mode,

IO = 2200 mA, VO=VfLED_max + VFB2 =

5.02 V

See the typical application schematic

It is included losses of inductor and

sensing resistor

OVP

Output over voltage protection VI = 5.5 V, No Load

5.3

OVHYST Over voltage hysteresis

VI = 5.5 V, No Load

0.2

OTP

Junction over temperature

protection

140

°C

OTHYST Junction over temperature

hysteresis

°C

VREF4

NTC hot voltage threshold

Ready mode, INTC = 2mA max

1.2

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