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PDF S7DB-07A Data sheet ( Hoja de datos )
| Número de pieza | S7DB-07A | |
| Descripción | NON-ISOLATED DC/DC CONVERTERS | |
| Fabricantes | Bel Fuse | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de S7DB-07A (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
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NON-ISOLATED DC/DC CONVERTERS
12V Input / 1.2V – 5.0V Output / 7A
S7DB-07A Series
• Nonisolated
• Compact, low profile surface mount package
• Fixed frequency
• High efficiency means less power dissipation
• Excellent thermal performance
• Optimized for cost
• Remote on/off
• Undervoltage lockout (UVLO)
• Over current and short circuit protection
• Remote sense
POWER PRODUCTS
BP02S7DB-07A
Description
The Bel S7DB-07A modules are a series of non-isolated, step down DC/DC power converters that operate from a nominal
12V source. These converters are available in a range of output voltages from 1.2V to 5.0V. They are packaged in a compact,
low profile, surface mount DIP package for ease of layout and space savings. 7A maximum output is also provided. Standard
features include remote on/off, over current and shortDcairtcauSithperoette4cUtio.cno, mUVLO and output voltage adjust. These products may
be used almost anywhere low voltage silicon is employed and a 12V source is available. Typical applications include file
servers, routers, line cards and other computing and communications equipment.
DataShee
Applications
• Distributed power architectures
• Data networking equipment
• Telecommunications
• Computers and peripherals
Part Number Selection
Output
Voltage
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
Input
Voltage
12V
12V
12V
12V
12V
12V
Max. Output Max. Output
Current
Power
7A 35.0W
7A 23.1W
7A 17.5W
7A 12.6W
7A 10.5W
7A 8.4W
Typical
Efficiency
92%
90%
88%
83%
82%
81%
Part Number
S7DB-07A500
S7DB-07A330
S7DB-07A250
S7DB-07A180
S7DB-07A150
S7DB-07A120
DataSheet4U.com
©2002 Bel Fuse Inc. Specifications subject to change without notice. 09.02
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 1
1 page  
www.DataSheet4U.com
NON-ISOLATED DC/DC CONVERTERS
12V Input / 1.2V – 5.0V Output / 7A
POWER PRODUCTS
BP02S7DB-07A
General Specifications
Parameter
Efficiency1
Switching Frequency
et4U.com
Output Voltage Trim Range2
Remote Sense Compensation
Weight
Module
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
All
All
1. Vin=12V, full load and Ta=25° C.
2. See graphs on pages 10-13.
Symbol Min Typical
η
89 92
87 90
85 88
80 83
79 82
78 81
Fsw
285 355
280 330
238 280
180 210
180 210
180 210
90
70
DataS79h00eet4U.com
90
90
10.8
Max
425
380
322
240
240
240
110
110
110
120
120
110
10
Units
%
kHz
%
%
g
DataShee
Control Specifications
Parameter
Remote On/Off 3
Module
All
Symbol
Vouten
Signal Low (Unit Off)
All
Signal High (Unit On)
All
3. With remote on/off pin 8 open, the module is on.
Min
0
2.5
Typical
Max
1
13.2
Units
V
V
V
Note: On/off pin designed to work with an open collector/drain switch.
DataSheet4U.com
©2002 Bel Fuse Inc. Specifications subject to change without notice. 09.02
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 5
5 Page 
www.DataSheet4U.com
NON-ISOLATED DC/DC CONVERTERS
12V Input / 1.2V – 5.0V Output / 7A
Output Voltage Set-Point Adjustment
POWER PRODUCTS
BP02S7DB-07A
S7DB-07A500 Trim Resistor Calculation
Rtrim down = (
10.52
Vo – Vo, adj
– 4.55) Kohm
45
40.01
35.02
30.02
25.03
20.03
15.04
10.04
5.04
0.05
3.5 3.65 3.8 3.95 4.1 4.25 4.4 4.55 4.7 4.85
Adjusted output voltage Vo,adj (V)
5
et4U.com
Rtrim up =
(
2
Vo, adj – Vo
– 2.05) Kohm
100
90.1
80.2
70.3
60.4
50.5
40.6
30.7
20.8
10.9
DataSheet4U.com
1
5
5.05 5.1 5.15 5.2 5.25 5.3 5.35 5.4 5.45 5.5
Adjusted output voltage Vo,adj(V)
DataShee
45
40.01
35.02
30.02
25.03
20.03
15.04
10.04
5.04
0.05
2.31 2.41 2.51 2.61 2.71 2.8 2.9 3 3.1 3.2 3.3
Adjusted output voltage Vo,adj (V)
S7DB-07A330 Trim Resistor Calculation
Rtrim down = (
5.08
Vo – Vo, adj
– 4.55) Kohm
100
90.1
80.2
70.3
60.4
50.5
40.6
30.7
20.8
10.9
1
3.3 3.33 3.37 3.4 3.43 3.46 3.5 3.53 3.56 3.6 3.63
Adjusted output voltage Vo,adj(V)
Rtrim up = (
3.175
Vo, adj – Vo
– 2.05) Kohm
DataSheet4U.com
©2002 Bel Fuse Inc. Specifications subject to change without notice. 09.02
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 11
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet S7DB-07A.PDF ] | |
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