SSL21081AT Datasheet, PDF (15/22 Pages) NXP Semiconductors – Compact non-dimmable LED driver IC

NXP Semiconductors
SSL21082AT
Mains dimmable LED driver IC
Table 6. Characteristics …continued
Values specified at T_amb = 25 C unless otherwise specified; all voltages are measured with respect to ground; currents are
positive when flowing into the IC.
Symbol
Parameter
Conditions
Min Typ Max Unit
Current protection
V_{th(ocp)SOURCE} overcurrent protection threshold
voltage on pin SOURCE
t_d(ocp-swoff)
delay time from overcurrent
protection to switch-off
V/t = 0.1 V/s
V/t = 0.1 V/s; V_NTC = 0.325 V
V/t = 0.1 V/s
480 500
230 250
-
75
520 mV
270 mV
100 ns
t_leb
leading edge blanking time
Valley detection
overcurrent protection
260 300 340 ns
(V/t)_vrec
valley recognition voltage change on pin DRAIN
with time
30 20 10 V/s
f_ring
V_vrec(min)
ringing frequency
minimum valley recognition
voltage difference
voltage drop on pin DRAIN
[2] _{200 550}
15
20
1000 kHz
25 V
t_d(vrec-swon)
valley recognition to switch-on
delay time
-
100 -
ns
Brownout detection
V_th(TONMOD)
I_{offset(TONMOD)}
t_on(high)
threshold voltage on pin TONMOD
offset current on pin TONMOD
high on-time
3.75 4
37 43
12.5 15
4.25 V
48 A
17.5 s
MOSFET output stage
V_BR(DRAIN)
R_DSon
breakdown voltage on pin DRAIN
drain-source on-state resistance
dV/dt)_f(DRAIN) fall rate of change of voltage on pin
DRAIN
NTC functionality
T_j > 0 C
T_j = 25 C
T_j = 125 C
C_DRAIN = 150 pF;
R_SOURCE = 2.2 
300 
2.05 2.3
3.05 3.45
-
1.2
-
V
2.55 
3.85 
-
V/ns
V_th(high)NTC
V_th(low)NTC
V_act(tmr)NTC
V_{deact(tmr)NTC}
high threshold voltage on pin NTC
low threshold voltage on pin NTC
timer activation voltage on pin NTC
timer deactivation voltage on pin
NTC
0.47 0.5
0.325 0.35
0.26 0.3
0.17 0.2
0.53 V
0.375 V
0.325 V
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
Temperature protection
-
47 -
A
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
[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. It is guaranteed by design.
SSL21082AT
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 3 October 2013
© NXP B.V. 2013. All rights reserved.
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