Electrical Performance Specifications
3
SLUU361A – April 2009 – Revised November 2018
Copyright © 2009–2018, Texas Instruments Incorporated
LLC Resonant Half-Bridge Converter, 300-W Evaluation Module
3
Electrical Performance Specifications
(1)
The EVM output may present saw-tooth waveforms or a voltage higher than the regulation point typically about 13.1 V
depending on load levels and the speed when the load is reduced. The saw-tooth waveform is caused by UCC25600 burst
operation. The output voltage of 13.1 V is caused by output over voltage protection.
Table 1. UCC25600EVM Electrical Performance Specifications
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Input Characteristics
Voltage range
V
IN
375
390
405
V
DC
Maximum input current
V
IN
= 390 V
DC
, I
OUT
= 25A
0.88
A
Switching frequency
V
IN
= 390 V
DC
, I
OUT
= 25A
110
kHz
Output Characteristics
Output voltage V
OUT
V
IN
: 390 V
DC
, I
OUT
: 1A
11.9
12
12.2
V
DC
Load current1
(1)
V
IN
: 390 V
DC
0
25
A
Continuous output power
V
IN
: 390 V
DC
300
W
Line regulation
V
IN
: 375 V
DC
to 405 V
DC
, I
OUT
= 1.0A
5
mV
Load regulation
V
IN
: 390 V
DC
, I
OUT
: 1 - 25A
50
Load starting burst
(1)
V
IN
: 390 V
DC
0.5
A
Ripple and noise (20 MHz BW)
V
IN
: 390 V
DC
, I
OUT
= 25A
120 mVpk-pk
Over current threshold, I
o_ocp
V
IN
: 390 V
DC
30
A
Max power limit
V
IN
: 390 V
DC
350
W
Efficiency
Peak
V
IN
= 390 V
DC
, I
OUT
= 15 A
92.5%
Full load
V
IN
= 390 V
DC
, I
OUT
= 25 A
91%
Operation ambient temperature
Full load, forced air cooling 400 LFM
45
°C