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Electrical Performance Specifications
3
Electrical Performance Specifications
Table 1. UCC28810EVM-002 Electrical Performance Specifications
SYMBOL
INPUT CHARACTERSTICS
V
IN
I
IN
PF
Input voltage
Input current
Power factor
P
OUT
= 80 W to 100 W
90
0.175
0.95
0.97
264
1.1
V
RMS
A
RMS
PARAMETER
CONDITIONS
MIN
NOM
MAX
UNITS
OUTPUT CHARACTERSTICS
PFC Stage
V
OUT
P
OUT
I
OUT
PFC output voltage
Output power
Output current
Line regulation
Frequency
SYSTEMS CHARACTERSTICS
η
Full load efficiency
Threshold
Frequency range
Duty cycle
(1)
235
45
0.84
60
90%
0.72
200
0%
93%
80
0.9
415
100
0.96
0.03
128
VDC
W
A
kHz
LED Driver Stage
PWM Dimming
(1)
1.3
1000
90%
V
Hz
The PWM dimming signal is inverted, 0% duty cycle is 100% LED current.
SLUU355A – March 2009 – Revised June 2009
A 0.9-A Constant Current Supply with PFC for 100-W LED Lighting Applications
3
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