SSL2103

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© NXP B.V. 2010. All rights reserved.

Product data sheet

Rev. 2 — 25 November 2010

12 of 21

NXP Semiconductors

SSL2103

SMPS controller IC for dimmable LED lighting

[1]

[2]

[3]

Voltage change in time for valley recognition.

Duty factor regulator: pin PWMLIMIT

current on pin PWMLIMIT

25 -

18

A

voltage on pin PWMLIMIT

maximum duty cycle threshold

-2.6

-

V

minimum duty cycle threshold

-0.45

-

V

Valley switching

(

V/t)

vrec

valley recognition voltage change

with time

minimum absolute value

[3] -100

-

V/

s

ringing frequency

N

 V

200

500

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/

s

0.46 0.50

0.53

V

short-winding protection threshold

voltage on pin SOURCE

dV/dt = 0.1 V/

s-

1.5

-

V

delay time from overcurrent

protection to switch-off

dV/dt = 0.5 V/

s

-

160

185

ns

leading edge blanking time

250

350

450

ns

FET driver output stage

output Voltage on pin PWR_DRV

-

12

V

rise time on pin PWR_DRV

With maximum input capacitance

4.7 nF on pin PWR_DRV;

-210

-

ns

fall time on pin PWR_DRV

With maximum input capacitance

4.7 nF on pin PWR_DRV;

-210

-

ns

Temperature protection

overtemperature protection

threshold

junction temperature

150

160

170

C

overtemperature protection trip

hysteresis

junction temperature

-

7

-

C

Table 6.

100 kHz.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit