Electrical Performance Specifications
Table 1. UCC29950EVM-631 Performance Summary (continued)
PARAMETER
TEST CONDITION
MIN
TYP
MAX
UNIT
System Characteristics
Switching frequency – including ±2-kHz
f
SW(PFC)
T
J
= 25°C
87
100
109
kHz
dither
V
IN
= 115 V
AC
,
60 Hz,
0.999
I
OUT
= I
OUT(max)
PF
Power factor
V
IN
= 230 V
AC
,
50 Hz,
0.995
I
OUT
= I
OUT(max)
V
IN
= 115 V
AC
,
f
LINE
= 60 Hz,
3%
10%
I
OUT
= I
OUT(max)
THD
Total harmonic distortion
V
IN
= 230 V
AC
,
f
LINE
= 50 Hz
6%
10%
I
OUT
= I
OUT(max)
f
SW(LLC)
LLC stage switching frequency
70
110
350
kHz
V
IN
= 115 V
AC
,
f
LINE
= 60 Hz,
88.3%
I
OUT
= I
OUT(max)
η
FL
Full load efficiency
V
IN
= 230 V
AC
,
f
LINE
= 50 Hz,
90.5%
I
OUT
= I
OUT(max)
V
IN
= 115 V
AC
,
f
LINE
= 60 Hz,
87.8%
I
OUT
= I
OUT(max)
η
AV
Average efficiency
V
IN
= 230 V
AC
,
f
LINE
= 50 Hz,
90.2%
I
OUT
= I
OUT(max)
t
AMB
Ambient temperature
25
°C
5
SLUUB69A – March 2015 – Revised March 2015
Using the UCC29950EVM-631 300-W PFC/LLC Off-Line PSU Module
Copyright © 2015, Texas Instruments Incorporated