SSL2102 datasheet(14/21 Pages) NXP

14 / 21 page

SSL2102_1

Product data sheet

Rev. 01 — 29 June 2009

14 of 21

NXP Semiconductors

SSL2102

SMPS IC for dimmable LED lighting

RDSon(WBLEED)

drain-source

on-state

resistance on pin

WBLEED

IWBLEED = 10 mA

Tj =25 °C

250

310

350

Ω

Tj = 125 °C

400

500

600

Ω

Duty factor regulator: pin PWMLIMIT

IPWMLIMIT

current on pin

PWMLIMIT

−25

−18

µA

VPWMLIMIT

voltage on pin

PWMLIMIT

maximum duty cycle =

-3

minimum duty factor

threshold

0.45

Valley switching

(

∆V/∆t)vrec

valley recognition

voltage change

with time

minimum absolute

value

[1] -

100

µs

fring

ringing frequency

× VO = 100 V

200

550

800

kHz

td(vrec-swon)

valley recognition

to switch-on delay

time

150

Current and short circuit winding protection

Vth(ocp)SOURCE

overcurrent

protection

threshold voltage

on pin SOURCE

dV/dt = 0.1 V/

µs

0.47

0.50

0.53

Vth(swp)SOURCE

short-winding

protection

threshold voltage

on pin SOURCE

dV/dt = 0.1 V/

µs

1.5

td(ocp-swoff)

delay time from

overcurrent

protection to

switch-off

dV/dt = 0.5 V/

µs

160

185

tleb

leading edge

blanking time

250

350

450

FET output stage

IL(DRAIN)

leakage current on

pin DRAIN

VDRAIN = 600 V

125

µA

VBR(DRAIN)

breakdown

voltage on pin

DRAIN

Tamb =25 °C

600

RDSon

drain-source

on-state

resistance

power switch; ISOURCE = −0.50 A

Tj =25 °C

4.50

6.5

7.5

Ω

ISOURCE = −0.20 A

Tj = 125 °C

9.5

Ω

Table 6.

Characteristics …continued

Tamb =25 °C; no overtemperature; all voltages are measured with respect to ground; currents are

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

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