SSL2101_4

© NXP B.V. 2009. All rights reserved.

Product data sheet

Rev. 04 — 28 August 2009

14 of 22

NXP Semiconductors

SSL2101

SMPS IC for dimmable LED lighting

drain-source

on-state

resistance on pin

WBLEED

250

310

350

Ω

400

500

600

Ω

Duty factor regulator: pin PWMLIMIT

current on pin

PWMLIMIT

−25

-

−18

µA

voltage on pin

PWMLIMIT

maximum duty cycle =

3V

-3

-

V

minimum duty factor

threshold

-

0.45

-

V

Valley switching

(

valley recognition

voltage change

with time

minimum absolute

value

[1] -

100

-

V/

µs

ringing frequency

N

200

550

800

kHz

valley recognition

to switch-on delay

time

-

150

-

ns

Current and short circuit winding protection

overcurrent

protection

threshold voltage

on pin SOURCE

dV/dt = 0.1 V/

µs

0.47

0.50

0.53

V

short-winding

protection

threshold voltage

on pin SOURCE

dV/dt = 0.1 V/

µs

-

1.5

-

V

delay time from

overcurrent

protection to

switch-off

dV/dt = 0.5 V/

µs

-

160

185

ns

leading edge

blanking time

250

350

450

ns

FET output stage

leakage current on

pin DRAIN

-

-

125

µA

breakdown

voltage on pin

DRAIN

600

-

-

V

drain-source

on-state

resistance

power switch;

4.50

6.5

7.5

Ω

-

9.5

10

Ω

Table 6:

positive when flowing into the IC and PWMLIMIT and BRIGHTNESS pins are disconnected unless

otherwise specified. Typical frequency 100 kHz.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit