STLD20CP1 datasheet(8/19 Pages) STMICROELECTRONICS

8 / 19 page

Electrical characteristics

STLD20CP1

8/19

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

V-DM1L V-

DM2L V-

TFL

V-SELL

Low voltage threshold

VI = 2.8V to 6V

0.6

I-DM1L

I-DM1L leakage current

V-DM1L = 0V

0.1

0.5

µA

I-DM2L

I-DM2L leakage current

V-DM2L = 0V

0.1

0.5

µA

I-TFL

I-TFL leakage current

V-TFL = 0V

0.1

0.5

µA

I-SELL

I-SELL leakage current

V-SELL = 0V

0.1

0.5

µA

Single-wire pulse dimming

TLO

Duration time of the low

pulse

0.5

250

µs

THI

Duration time of the high

pulse

0.5

µs

TSHDN

Duration time to shut down

the current

500

µs

Initial THI

Duration time required for

the first pulse

µs

Flash section charge pump

VIF

Voltage threshold

Flash mode

VI-0.6

VIT

Voltage threshold

Torch mode

VI-0.6

VFB_CP

Feedback charge pump

I_Torch = 100mA

150

VO_CP

Over voltage charge pump

IO_CP Max Max current charge pump

Flash mode @ VI ≥ 3V

(1)

300

Torch mode @ VI ≥ 3V

(1)

130

Flash section charge pump

I_Flash

Accuracy current flash

VI = 3.4V, RFL = 1950Ω

-10

I_Flash

(LINE)

Static line regulation

current flash

K*VIF/RFL = I_Flash, VI = 3.0V to

4.2V @ TJ = 25°C

-10

I_Torch

Accuracy current torch

VIN = 3.4V, RTH = 7800Ω

-10

I_Torch

(LINE)

Static line regulation

current torch

K*VIT/RTH = I_Torch,

VI = 3.0V to 4.2V @ TJ = 25°C

-10

Thermal shutdown

TSD

Thermal shutdown

180

°C

THS

Thermal shutdown

hysteresis

°C

Guaranteed by design.

Table 7.

Electrical characteristics for STLD20CP1 (continued) (TJ = -40 °C to 85 °C, VI = 3.4 V, CI

= 2.2 µF, CO1,2 = 2.2 µF, VO_SU = 15 V, VO_CP = 4 V, CCP = 1 µF, CFB_SU = 100 pF, L = 3.3

µH, DM1 = DM2 = 1.6 V, typ. values @ 25 °C, unless otherwise specified)

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