SSL21081T_2T_3T_4T

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© NXP B.V. 2011. All rights reserved.

Preliminary data sheet

Rev. 2 — 6 December 2011

13 of 24

NXP Semiconductors

SSL21081T/2T/3T/4T

GreenChip drivers for LED lighting

Capability

high supply current on pin HV

Standby:

1

1.3

1.6

mA

Regulator On:

start-up

2

2.3

2.6

mA

Current and SWP

overcurrent protection threshold

voltage on pin SOURCE

V/t = 0.1 V/s

480

500

520

mV

V/t = 0.1 V/s

230

250

270

mV

delay time from overcurrent

protection to switch-off

V/t = 0.1 V/s

-

75

100

ns

leading edge blanking time

overcurrent

protection

260

300

340

ns

short-winding

protection

210

250

290

ns

t

leb

leading edge blanking time

difference

overcurrent

protection and

short-winding

protection

30

50

-

ns

short-winding protection

threshold voltage on pin

SOURCE

1.4

1.5

1.6

V

Valley detection

(

V/t)

vrec

valley recognition voltage change

with time

on pin DRAIN

30

20

10

V/

s

ringing frequency

200

550

1000

kHz

V

vrec(min)

minimum valley recognition

voltage difference

voltage drop on pin

DRAIN

15

20

25

V

valley recognition to switch-on

delay time

-

100

-

ns

Brownout detection

threshold voltage on pin

TONMAX

3.75

4

4.25

V

offset current on pin TONMAX

37

43

48

A

high on-time

12.5

15

17.5

s

MOSFET output stage

breakdown voltage on pin DRAIN 600 V version;

600

-

-

V

300 V version;

300

-

-

V

Table 7.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit