OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

SSL2109T/1,118

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
SSL2109T All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 5 — 3 October 2013 10 of 20
NXP Semiconductors
SSL2109T
Compact non-dimmable LED driver IC
If an NTC resistor is connected between the NTC pin and ground, the voltage on the NTC
pin is 0 V when V
CC
reaches V
CC(startup)
.
When the voltage on the NTC pin is higher than V
th(high)NTC
(see Figure 6 (4)), the
converter delivers nominal output current. When the voltage is lower than this level, the
peak
current is gradually reduced until V
th(low)NTC
is reached (see Figure 6 (3)). The peak
current is now half the peak current of nominal operation. When V
act(tmr)NTC
is passed
(see Figure
6 (2)), a timer starts to run to distinguish between the following situations:
• If the low-level V
deact(tmr)NTC
is not reached within time t
to(deact)NTC
(see Figure 6 (1)),
LED overtemperature is detected. The IC stops switching and attempts to restart from
the HV pi
n voltage. The converter restarts from an NTC protection shutdown when the
voltage on the NTC pin exceeds V
th(high)NTC
(see Figure 6 (4)). It is assumed that the
reduction in peak current does not result in a lower NTC temperature and LED OTP is
activated.
• If the low-level V
deact(tmr)NTC
is reached within the time t
to(deact)NTC
(see Figure 6 (1)) it
is assumed that the pin is pulled down externally. The
restart function is not triggered.
Instead, the output current is reduced to zero. PWM regulation and consequently LED
output current regulation can be implemented this way. The output current rises again
when the voltage is higher than V
th(low)NTC
.
8.9.1 Soft-start function
The NTC pin can be used to make a soft start function. During switch-on, the level on the
NTC pin is low. By connecting a capacitor (in parallel with the NTC resistor), a time
constant can be defined. The time constant causes the level on the NTC pin to increase
slowly. When passing level V
th(low)NTC
(see Figure 6 (3)), the convertor starts with half of
the maximum current. The output current slowly increases to maximum when V
th(high)NTC
(see Figure
6 (4)) is reached.
Fig 6. NTC control curve
001aan700
2 3 4 5
I
pk
Peak current
I
pk
/ 2
V
th(ocp)SOURCE
= 500 mV
V
th(ocp)SOURCE
= 250 mV
V
NTC
V
th(high)NTC
V
th(low)NTC
V
act(tmr)NTC
V
deact(tmr)NTC
1
SSL2109T All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 5 — 3 October 2013 11 of 20
NXP Semiconductors
SSL2109T
Compact non-dimmable LED driver IC
9. Limiting values
[1] The current flowing into the VCC pin must not exceed the maximum I
DD
value
[2] An internal clamp sets the supply voltage.
[3] Human body model: equivalent to discharging a 100 pF capacitor through a 1.5 k series resistor.
[4] C
harged device model: equivalent to charging the IC up to 1 kV and the subsequent discharging of each
pin down to 0 V over a 1 r
esistor.
10. Thermal characteristics
Table 4. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter Conditions Min Max Unit
General
SR slew rate on pin DRAIN 5 +5 V/ns
P
tot
total power dissipation SO8 package - 0.6 W
T
amb
ambient temperature 40 +125 C
T
j
junction temperature 40 +150 C
T
stg
storage temperature 55 +150 C
Voltages
V
CC
supply voltage continuous
[1]
0.4 +20 V
V
DRAIN
voltage on pin DRAIN 0.4 +600 V
V
HV
voltage on pin HV current limited 0.4 +600 V
V
SOURCE
voltage on pin SOURCE current limited 0.4 +5.2 V
V
NTC
voltage on pin NTC current limited 0.4 +5.2 V
Currents
I
DD
supply current at pin VCC
[2]
- 20 mA
I
DVDT
current on pin DVDT duration 20 s
maximum
- 1.3 A
V
ESD
electrostatic discharge
voltage
human body
model; pins
DRAIN and HV
[3]
1 +1 kV
human body
model; a
ll other
pins
2 +2 kV
charged device
[4]
500 +500 V
Table 5. Thermal characteristics
Symbol Parameter Conditions Typ Unit
R
th(j-a)
thermal resistance from junction to
ambient
in free air; PCB: 2 cm 3 cm; 2-layer; 35 m
Cu per layer
159 K/W
in free air; PCB: JEDEC 2s2p 89 K/W
j-top
thermal characterization parameter
from junction to top of package
top package temperature measured at the
warmest point on top of the case
0.49 K/W
SSL2109T All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 5 — 3 October 2013 12 of 20
NXP Semiconductors
SSL2109T
Compact non-dimmable LED driver IC
11. Characteristics
Table 6. Characteristics
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
f
conv
conversion frequency - 100 - kHz
High-voltage
I
leak(DRAIN)
leakage current on pin DRAIN V
DRAIN
= 600 V - - 10 A
I
leak(HV)
leakage current on pin HV V
HV
= 600 V - - 30 A
Supply
V
CC
supply voltage operating range
[1]
8 - 16 V
V
CC(startup)
start-up supply voltage 11 12 13 V
V
CC(stop)
stop supply voltage 8 9 10 V
V
CC(hys)
hysteresis of supply voltage between V
CC(startup)
and V
CC(stop)
2 - 4.5 V
V
CC(rst)
reset supply voltage 4.5 5 5.5 V
V
CC(swon)reg
regulator switch-on supply voltage insufficient dV/dt supply 8.75 9.25 9.75 V
V
CC(swoff)reg
regulator switch-off supply voltage insufficient dV/dt supply 9.5 10 10.5 V
V
CC(reg)hys
regulator supply voltage hysteresis V
CC(swoff)reg
V
CC(swon)reg
0.3 - - V
V
CC(regswon-stop)
supply voltage difference between
regulator switch-on and stop
V
CC(swon)reg
V
CC(stop)
0.3 - - V
Consumption
I
stb(HV)
standby current on pin HV during start-up or in protection;
V
HV
= 100 V
300 350 400 A
I
CC(INT)
internal supply current normal operation - 1.3 - mA
Capability
I
sup(high)HV
high supply current on pin HV Standby: V
HV
= 40 V;
V
CC
< V
CC(stop)
1 1.3 1.6 mA
Regulator On: V
HV
= 40 V;
V
CC
< V
CC(swon)reg
after start-up
2 2.3 2.6 mA
Current and SWP protection
V
th(ocp)SOURCE
overcurrent protection threshold
voltage on pin SOURCE
V/t = 0.1 V/s 480 500 520 mV
V/t = 0.1 V/s; V
NTC
= 0.325 V 230 250 270 mV
t
d(ocp-swoff)
delay time from overcurrent
protection to switch-off
V/t = 0.1 V/s - 75 100 ns
t
leb
leading edge blanking time overcurrent protection 260 300 340 ns
short-winding protection 210 250 290 ns
t
leb
leading edge blanking time
difference
between t
leb
for overcurrent
protection and short-winding
protection
30 50 - ns
V
th(swp)SOURCE
short-winding protection threshold
voltage on pin SOURCE
1.4 1.5 1.6 V
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

SSL2109T/1,118

Mfr. #:
Buy SSL2109T/1,118
Manufacturer:
NXP Semiconductors
Description:
LED Lighting Drivers GreenChip controlle
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet