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LT1725IGN データシート(PDF) 23 Page - Linear Technology

部品番号 LT1725IGN
部品情報  General Purpose Isolated Flyback Controller
PDF  28 Pages
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メーカー  LINER [Linear Technology]
ホームページ  http://www.linear.com
Logo LINER - Linear Technology

LT1725IGN データシート(HTML) 23 Page - Linear Technology

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23
LT1725
1725f
TYPICAL APPLICATIO S
ILOAD (A)
0
15.0
2.0
1725 F09b
14.5
0.5
1.0
1.5
2.5
15.5
VIN = 36V
VIN = 72V
VIN = 48V
Application Regulation
Application Efficiency
ILOAD (A)
0.01
60
70
80
90
0.1
1
10
1725 F09c
50
40
30
20
VIN = 48V
VOUT = 15V
48V to Isolated 15V Application Parts List
T1: Coiltronics VP5-0155 VERSA-PAK
M1: International Rectifier IRF620. 200V, 0.8
Ω N-channel
MOSFET
D1: Motorola MBRD660. 6A, 60V Schottky diode
D2: Motorola MBRS1100. 1A, 100V Schottky diode
D3, D4: 1N5257. 33V, 500mW Zener diode
D5: BAS16. 75V rectifier diode
C1: AVX TPSD226M025R0200. 22
µF, 25V tantalum
capacitor
C2a, C2b, C2c: Vishay/Vitramon VJ1825Y155MXB. 1.5
µF,
100V X7R ceramic capacitor
C3: 100pF, 100V, X7R ceramic capacitor
C4: Sanyo 20SV150M. 150
µF, 20V, OS-CON electrolytic
capacitor
C5: 1
µF, 25V, Z5U ceramic capacitor
C6: 1nF, 25V, X7R ceramic capacitor
C7: 47pF, 25V NPO/COG ceramic capacitor
C8: 0.1
µF, 25V, Z5U ceramic capacitor
C9: 470pF, 25V, X7R ceramic capacitor
C10: 100pF, 25V, X7R ceramic capacitor
R1: 24k, 1/4W, 5% resistor
R2: IRC LR2010. 0.1
Ω, 1/2W current sense resistor
R3: 34.0k, 1% resistor
R4: 3.01k, 1% resistor
R5, R6, R7: 51k, 5% resistor
R8: 6.2k, 5% resistor
R9: 51
Ω, 5% resistor
R10: 18
Ω, 5% resistor
R11: 150
Ω, 1/4W, 5% resistor
R12: 5.1
Ω, 5% resistor
R13a, R13b: 1.5k, 1/2W, 5% resistor
R14: 820k, 5% resistor
R15: 33k, 5% resistor



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