Texas Instruments UCC2897A Evaluation Module UCC2897AEVM UCC2897AEVM 데이터 시트
제품 코드
UCC2897AEVM
Electrical Performance Specifications
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3
Electrical Performance Specifications
Table 1. Electrical Performance Specifications
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Input Characteristics
Input voltage range
36
48
72
V
No load input current
V
IN
= 36 V, I
OUT
= 0 A
75
100
mA
Input undervoltage limit
35
V
Input overvoltage limit
73
Max input current
V
IN
= 36 V, I
OUT
= 30 A
3
3.25
A
Input voltage ripple
V
IN
= 72 V, I
OUT
= 30 A
1.5
1.75
Vpp
Output Characteristics
Output voltage
36 V < V
IN
< 72 V, 0 A < I
OUT
< 30 A
3.25
3.3
3.35
V
Output voltage regulation
Line reg (36 V < V
IN
< 72 V, I
OUT
= 0 A)
0.00%
0.01%
-
Load reg (0 A < I
OUT
< 30 A, V
IN
= 48 V)
0.06%
0.10%
Output voltage ripple
V
IN
= 48 V, I
OUT
= 30 A
30
35
mVpp
Output load current
36 V < V
IN
< 72 V
0
30
A
Output current limit
32
Short circuit protection
Not provided
Systems Characteristics
Switching frequency
225
250
265
kHz
Control loop bandwidth
36 V < V
IN
< 72 V, I
OUT
= 10 A
5
7
Phase margin
50
60
°
Peak efficiency
V
IN
= 36 V
93%
-
Full load efficiency
V
IN
= 48 V, I
OUT
= 30 A
91%
4
48-V to 3.3-V Forward Converter with Active Clamp Reset —Using the
SLUU357 – November 2009
UCC2897A Active Clamp Current Mode —PWM Controller
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