LED5000 datasheet(8/52 Pages) STMICROELECTRONICS

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Electrical characteristics

LED5000

8/51

Doc ID 023951 Rev 1

Electrical characteristics

All tests performed at TJ = 25 °C, VCC = 12 V, VINH =0 V unless otherwise specified. The

specification is guaranteed from (-40 to +125) TJ temperature range by design,

characterization and statistical correlation.

Table 5.

Electrical characteristics

Symbol

Parameter

Test condition

Min

Typ

Max

Unit

VIN

Operating input

voltage range

5.5

RDS(on)

MOSFET on

resistance

ISW=1 A

0.2

0.4

ISW

Maximum limiting

current

3.7

4.5

5.2

tHICCUP Hiccup time

fSW

Switching frequency

600

850

1000

kHz

Duty cycle

(1)

TON MIN

Minimum conduction

time of the power

element

(1)

TOFF MIN

Minimum conduction

time of the external

diode

(1)

120

DC characteristics

VFB

Voltage feedback

194

200

206

IFB

FB biasing current

Quiescent current

VDIM>1.5 V

1.3

VDIM>1.5 V, VIN=48 V

1.7

2.4

Iqst-by

Standby quiescent

current

VINH>1.5 V

μA

Inhibit

VINH

Inhibit levels

Device ON

VIN=5.5 V to 48 V

0.5

Device OFF

VIN=5.5 V to 48 V

1.5

IINH

Inhibit biasing current

VINH=5 V

0.7

1.6

2.5

μA

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