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LM25183 bảng dữ liệu(PDF) 25 Page - Texas Instruments

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Giải thích chi tiết về linh kiện  LM25183 42-VIN PSR Flyback DC/DC Converter with 65-V, 2.5-A Integrated Power MOSFET
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LM25183 bảng dữ liệu(HTML) 25 Page - Texas Instruments

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background image
t
IN(max)
D2-REV
OUT2
PS2
V
42 V
V
V
15 V
79 V
N
1 1.5
t
IN(max)
D1-REV
OUT1
PS1
V
42 V
V
V
15 V
79 V
N
1 1.5
®
ª
º
ª
º
°¯
˜
˜
«
»
«
»
¬
¼
«
»
¬
¼
IN
SW-PEAK
OUT(max)
OUT
D
IN
IN
PS
IN
0.24 A at V
13.5 V
I
2.5 A
I
V
V
1
0.29 A at V
24 V
30 V
0.4 V
1
2
2
V
N
V
1 3
˜
˜
˜
˜
t
OUT
D
PS
OFF-MIN
MAG
SW-PEAK(FFM)
V
V
N
t
15 V + 0.3 V 1 1.5 375ns
L
7.7 +
I
0.5 A
˜
˜
IN(min)
MAX
PS
MAX
OUT
D
V
D
0.7
4.5 V
N
0.69
1 D
V
V
1 0.7 15 V + 0.3 V
25
LM25183
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SNVSBJ3 – APRIL 2020
Product Folder Links: LM25183
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Copyright © 2020, Texas Instruments Incorporated
Table 5. List of Components for Design 2
REF DES
QTY
SPECIFICATION
VENDOR
PART NUMBER
CIN
1
10 µF, 50 V, X7R, 1210, ceramic
TDK
C3225X7R1H106M250AC
Taiyo Yuden
UMK325AB7106KM-T
COUT1, COUT2 4
22 µF, 25 V, X7R, 1210, ceramic
TDK
C3225X7R1E226M250AB
Taiyo Yuden
TMK325B7226MM-PR
DCLAMP
1
Zener, 20 V, 3 W, SMA
3SMAJ5932B
Micro Commercial
DF
1
Schottky diode, 60 V, 3 A, SOD-123FL
FSV360FP
OnSemi
DFLY1, DFLY2
2
Schottky diode, 100 V, 1 A, POWERDI123
DFLS1100-7
Diodes Inc.
DOUT1, DOUT2 2
Zener, 18 V, 5%, SOD-523
BZX585-C18
Nexperia
RFB
1
102 kΩ, 1%, 0402
Std
Std
RSET
1
12.1 kΩ, 1%, 0402
Std
Std
RTC
1
221 kΩ, 1%, 0402
Std
Std
T1
1
9 µH, 3 A, 1 : 1.5 : 1.5, 13 mm × 11 mm × 10 mm
Coilcraft
ZB1056-AE
U1
1
LM25183 PSR flyback converter, VSON-8
Texas Instruments
LM25183NGUR
8.2.3.2 Detailed Design Procedure
Using the LM25183 quick-start calculator, components are selected based on the flyback converter
specifications.
8.2.3.2.1
Flyback Transformer – T1
Choose a primary-secondary turns ratio for a 15-V output based on an approximate 70% max duty cycle at
minimum input voltage using Equation 33. The transformer turns ratio when considering both outputs is thus
specified as 1 : 1.5 : 1.5.
(33)
Select a magnetizing inductance based on the minimum off-time constraint using Equation 34. Choose a value of
9 µH and a saturation current of 3 A for this application.
(34)
Find the maximum output current for a given turns ratio, assuming the outputs are symmetrically loaded, using
Equation 35.
(35)
8.2.3.2.2
Flyback Diodes – DFLY1 and DFLY2
The flyback diode reverse voltages for the positive and negative outputs are given respectively by Equation 36
and Equation 37.
(36)
(37)


Số phần tương tự - LM25183

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Texas Instruments
LM25183 TI1-LM25183 Datasheet
1Mb / 39P
[Old version datasheet]   LM25183 42-VIN PSR Flyback DC/DC Converter with 65-V, 2.5-A Integrated Power MOSFET
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[Old version datasheet]   LM25183 42-VIN PSR Flyback DC/DC Converter with 65-V, 2.5-A Integrated Power MOSFET
LM25183-Q1 TI1-LM25183-Q1 Datasheet
1Mb / 40P
[Old version datasheet]   LM25183-Q1 42-VIN PSR Flyback DC/DC Converter with 65-V, 2.5-A Integrated MOSFET
LM25183-Q1 TI1-LM25183-Q1 Datasheet
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[Old version datasheet]   LM25183-Q1 42-VIN PSR Flyback DC/DC Converter with 65-V, 2.5-A Integrated MOSFET
LM25183-Q1 TI1-LM25183-Q1 Datasheet
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[Old version datasheet]   LM25183-Q1 42-VIN PSR Flyback DC/DC Converter with 65-V, 2.5-A Integrated MOSFET
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Mô tả tương tự - LM25183

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
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Texas Instruments
LM25183 TI1-LM25183_V02 Datasheet
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[Old version datasheet]   LM25183 42-VIN PSR Flyback DC/DC Converter with 65-V, 2.5-A Integrated Power MOSFET
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LM25183-Q1 TI1-LM25183-Q1_V01 Datasheet
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