FL103 — Primary-Side-Regulation PWM Controller for LED Illumination
Electrical Characteristics
(Continued)
Unless otherwise specified, V
DD
=15V and T
A
=25°C.
Symbol
t
PD
t
MIN-N
V
TH
V
TL
Parameter
Propagation Delay to GATE Output
Minimum On Time at No-Load
Threshold Voltage for Current Limit
Threshold Voltage on V
S
Pin Smaller
than 0.5V
Maximum Duty Cycle
Output Voltage Low
Output Voltage High
Rising Time
Falling Time
Output Clamp Voltage
Thermal Shutdown Temperature
(3)
Thermal Shutdown Hysteresis
(3)
Conditions
Min.
Typ.
90
Max.
200
1150
0.85
Units
ns
ns
V
V
Current Sense (CS) Section
V
COMR
=1V
800
0.75
975
0.80
0.25
GATE Section
DCY
MAX
V
OL
V
OH
t
r
t
f
V
CLAMP
TSD
TSD
HYS
60
V
DD
=20V,
Gate Sinks 10mA
V
DD
=8V,
Gate Sources 1mA
C
L
=1nF
C
L
=1nF
V
DD
=25V
+140
-
+15
5
200
60
15
250
100
18
75
85
1.5
%
V
V
ns
ns
V
°C
°C
Thermal Shutdown (TSD) Section
Note:
3. These parameters, although guaranteed, are not 100% tested in production.
© 2012 Fairchild Semiconductor Corporation
FL103 • Rev. 1.0.1
www.fairchildsemi.com
6
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