SSL2129AT All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 4 — 3 October 2013 13 of 19
NXP Semiconductors
SSL2129AT
Dimmable LED driver IC
[1] An internal clamp sets the supply voltage. The current into the VCC pin must not exceed the maximum I
DD
value (see Table 4).
[2] This parameter is not tested during production, by design it is guaranteed
Brownout detection
V
th(TONMOD)
threshold voltage on pin TONMOD 3.75 4 4.25 V
I
offset(TONMOD)
offset current on pin TONMOD 37 43 48 A
t
on(high)
high on-time 12.5 15 17.5 s
Driver (pin DRIVER)
I
source(DRIVER)
source current on pin DRIVER 1.5 ms maximum; V
DRIVER
= 2 V - 0.195 - A
I
sink(DRIVER)
sink current on pin DRIVER 20 s maximum; V
DRIVER
= 2 V - 0.28 - A
20 s maximum; V
DRIVER
= 10 V - 0.46 - A
V
o(DRIVER)max
maximum output voltage on pin
DRIVER
V
CC
> V
CC(startup)
9 10.5 12 V
V
o(DRIVER)min
minimum output voltage on pin
DRIVER
V
CC
= V
CC(stop)
6.5 7.5 8.5 V
NTC functionality
V
th(high)NTC
high threshold voltage on pin NTC 0.47 0.5 0.53 V
V
th(low)NTC
low threshold voltage on pin NTC 0.325 0.35 0.375 V
V
act(tmr)NTC
timer activation voltage on pin NTC 0.26 0.3 0.325 V
V
deact(tmr)NTC
timer deactivation voltage on pin
NTC
0.17 0.2 0.23 V
t
to(deact)NTC
deactivation time-out time on pin
NTC
33 46 59 s
I
offset(NTC)
offset current on pin NTC - 47 - A
Temperature protection
T
th(act)otp
overtemperature protection
activation threshold temperature
160 170 180 C
T
th(rel)otp
overtemperature protection
release threshold temperature
90 100 110 C
Table 6. Characteristics …continued
Values specified at T
amb
= 25
C unless otherwise stated; all voltages are measured with respect to ground; currents are
positive when flowing into the IC.
Symbol Parameter Conditions Min Typ Max Unit
