參數(shù)資料
型號: 1725I
廠商: Linear Technology Corporation
英文描述: General Purpose Isolated Flyback Controller
中文描述: 通用隔離反激式控制器
文件頁數(shù): 5/28頁
文件大小: 241K
代理商: 1725I
5
LT1725
1725f
TYPICAL PERFOR U
TEMPERATURE (
°
C)
–50
M
275
250
225
200
175
150
125
25
75
1725 G10
–25
0
50
100
125
R
TON
= 50k
TEMPERATURE (
°
C)
–50
M
275
250
225
200
175
150
125
25
75
1725 G11
–25
0
50
100
125
R
MINENAB
= 50k
TEMPERATURE (
°
C)
–50
275
250
225
200
175
150
125
25
75
1725 G12
–25
0
50
100
125
FB PIN VOLTAGE (V)
1.05
F
μ
A
1.35
1725 G13
1.15
1.25
80
60
40
20
0
–20
–40
–60
–80
1.10
1.20
1.30
1.40
T
A
= 125
°
C
T
A
= –55
°
C
T
A
= 25
°
C
TEMPERATURE (
°
C)
–50
1600
1400
1200
1000
800
600
400
200
25
75
1725
G14
–25
0
50
100
125
F
μ
m
TEMPERATURE (
°
C)
–50
S
μ
A
60
50
40
30
20
10
0
25
75
1725 G15
–25
0
50
100
125
V(SFST) = 0V
TEMPERATURE (
°
C)
–50
S
2.5
2.0
1.5
1.0
0.5
0
0
50
75
1725 G16
–25
25
100
125
V(SFST) = 1.5V
Minimum Switch-On Time vs
Temperature
Minimum Enable Time vs
Temperature
Enable Delay Time vs
Temperature
Feedback Amplifier Output Current
vs FB Pin Voltage
Feedback Amplifier
Transconductance vs Temperature
Soft-Start Charging Current vs
Temperature
Soft-Start Sink Current vs
Temperature
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