STCS2SPR datasheet(6/16 Pages) STMICROELECTRONICS

No de pièce	STCS2SPR

Description	2 A max constant current LED driver

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Electrical characteristics

STCS2

6/16

4

Electrical characteristics

Note:

All devices 100 % production tested at TA = 25 °C. Limits over the operating temperature

range are guaranteed by design.

Table 5.

Electrical characteristics

(VCC = 12 V; IO = 100 mA; TJ = -40 °C to 125 °C; VDRAIN = 1 V; CDRAIN = 1 µF; CBYP = 100

nF typical values are at TA = 25 °C, unless otherwise specified)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

VCC

Supply voltage range

4.5

40

V

Output current range

1

2000

mA

IO

Output current

RFB = 50 mΩ

2A

Regulation (percentage with

respect to VCC=12V)

VCC = 4.5 to 40 V,

IO = 100 mA; VDRAIN = 1 V

-1

+1

%

VFB

Feedback voltage

IO = 0 to 2A

90

100

110

mV

ICC

Quiescent current (Measured on

VCC pin)

On Mode

450

750

µA

Shutdown Mode;

VCC = 5 to 12V

1

Shutdown Mode;

VCC = 12 to 40V

3

VDROP

Dropout voltage (VDRAIN to GND)

IO = 100 mA

0.12

0.16

V

IO = 2 A

0.58

0.9

LEAKDRAIN Drain leakage current

Shutdown; VDRAIN = 40 V

10

µA

TD

Delay on PWM signal (see fig.1)

VPWM rising, VCC = 12 V

3

µs

VPWM falling, VCC = 12 V

1.2

DISC

Low level voltage

ISINK = 5 mA

0.2

0.5

V

Leakage current

VDISC = 5 V

1

µA

Load disconnection threshold

(VDRAIN-GND)

DISC Turn-ON

75

mV

DISC Turn-OFF

110

Thermal

Protection

Shutdown temperature

155

°C

Hysteresis

25

Logic inputs (PWM and EN)

VL

Input low level

0.4

V

VH

Input high level

1.2

V

EN, PWM leakage current

VEN = 5 V; VPWM = 5 V

2

µA

EN input leakage current

VEN = 40 V

60

PWM input leakage current

VPWM = 40 V

120

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