Texas Instruments UCC28780EVM-021, Руководство пользователя, Страница: 5 / 28

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Electrical Performance Specifications
5 SLUUBV6 – August 2018
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Copyright © 2018, Texas Instruments Incorporated
Using the UCC28780EVM-021, 45-W, 20-V High-Density Silicon (Si) Based,
Active-Clamp Flyback Converter/Evaluation Module
2 Electrical Performance Specifications
(1)
The performance listed in this table is achieved using secondary resonance and based on the test results from a single board.
(2)
Average efficiency of four load points, I
OUT
= 25%, 50%, 75% and 100% nom.
Table 1. UCC28780EVM-021 Electrical Performance Specifications
(1)
PARAMETER TEST CONDITIONS MIN NOM MAX UNIT
INPUT CHARACTERISTICS
V
IN
Input line voltage (RMS) 90 115 / 230 264 V
f
LINE
Input line frequency 47 50 / 60 63 Hz
P
STBY
Input power at no-load V
IN
= 115 V
RMS
, I
OUT
= 0 A 37.2 mW
P
STBY
Input power at no-load V
IN
= 230 V
RMS
, I
OUT
= 0 A 40.1 mW
P
0.25W
Input power at 0.25W load V
IN
= 115 V
RMS
, P
OUT
= 237mW 330 mW
P
0.25W
Input power at 0.25W load V
IN
= 230 V
RMS
, P
OUT
= 237 mW 392 mW
OUTPUT CHARACTERISTICS
V
OUT
Output voltage
V
IN
= 115 V
RMS
, I
OUT
= 2.249 A 19.928 V
V
IN
= 230V
RMS
, I
OUT
= 2.249 A 19.924 V
V
OUT
Output voltage
V
IN
= 115 V
RMS
, I
OUT
= 0 A 19.937 V
V
IN
= 230V
RMS
, I
OUT
= 0 A 19.936 V
I
OUT
Full load rated output current V
IN
= 90 to 264 V
RMS
2.25 A
V
OUT_pp
Output ripple voltage V
IN
= 115 V / 230 V
RMS
, I
OUT
= 0 to 2.25 652/600 mVpp
V
OUT_pp
Output ripple voltage V
IN
= 115 V / 230 V
RMS
, I
OUT
= 2.25 A 20/28 mVpp
V
OUT_pp
Output ripple voltage V
IN
= 115 V / 230 V
RMS
, I
OUT
= 0 A 20/21 mVpp
P
OUT_opp
Over-power protection power
limit
V
IN
= 90 to 264 V
RMS
55 W
t
OPP
Over-power protection duration V
IN
= 90 to 264 V
RMS
, P
OUT
= P
OUT_opp
160 ms
V
OUT_ Δ
Output voltage deviation due to
load step up
I
OUT
step between 0 A and 2.25A < 5%
SYSTEMS CHARACTERISTICS
η Full-load efficiency
V
IN
= 115 V
RMS
, I
OUT
= 2.25A 94.06%
V
IN
= 230 V
RMS
, I
OUT
= 2.25A 93.82%
V
IN
= 90V RMS, I
OUT
= 2.25A 93.08%
η 4-point average efficiency
(2)
V
IN
= 115 V
RMS
92.82%
V
IN
= 230 V
RMS
91.71%
η Efficiency at 10% Load
V
IN
= 115 V
RMS
, I
OUT
= 10% rated current 88.09%
V
IN
= 230 V
RMS
, I
OUT
= 10% rated current 85.08%
T
AMB
Ambient operating temperature
range
V
IN
= 90 to 264 V
RMS
, I
OUT
= 0 to 2.25A 25 °C