VRAH-05A1A00 Bel Fuse Inc, VRAH-05A1A00 Datasheet

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VRAH-05A1A00

Manufacturer Part Number
VRAH-05A1A00
Description
CONV DC/DC 5A 12V .9-3.63V OUT
Manufacturer
Bel Fuse Inc
Series
VRAH-05Ar
Type
Point of Load (POL) Non-Isolated with Remote On/Off and UVLOr
Datasheet
1.SRAH-05A1A00.pdf (27 pages)

Specifications of VRAH-05A1A00

Output
0.9 ~ 3.63V
Number Of Outputs
1
Power (watts)
18W
Mounting Type
Through Hole
Voltage - Input
12V
Package / Case
5-SIP Module
1st Output
0.9 ~ 3.63 VDC @ 5A
Size / Dimension
0.70" L x 0.31" W x 0.65" H (17.8mm x 7.9mm x 16.5mm)
Power (watts) - Rated
18.2W
Operating Temperature
-40°C ~ 85°C
Efficiency
88%
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
3rd Output
-
2nd Output
-
Other names
VRAH-05A1A0
Description
The Bel SRAH-05A and VRAH-05A 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 0.9V to 5.0V. They are packaged
in a compact, overmolded package rated at 5A. Optional lead forming provides a vertical mount product for minimal footprint or
a surface mount option for a very low profile. Standard features include remote on/off, over current and short circuit protection,
output voltage adjust and industrial temperature ranges (-40° to +85° C). The output is closely regulated and the efficiency is
typically 91.5% at full load. 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.
Applications
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Data networking equipment
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NON-ISOLATED DC/DC CONVERTERS
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Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
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
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Specifications subject to change without notice. 03.05
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page 1

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VRAH-05A1A00 Summary of contents

Page 1

... Over current and short circuit protection Description The Bel SRAH-05A and VRAH-05A 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 0.9V to 5.0V. They are packaged in a compact, overmolded package rated at 5A ...

Page 2

... With simulated source impedance of 500nH, 5Hz to 20MHz. ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 2 NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A ...

Page 3

... Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated. 1. Vin = 12V, Iout = full load 25° C. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com ...

Page 4

... For fast start up modules. ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 4 NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A ...

Page 5

... Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated. 3. di/dt = 0.5A/uS 25° C. 0.9V ~ 3.3V modules with 220µF/6.3V Tant cap (5.0V module with 100µF/10V tant cap). Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com d ...

Page 6

... Ta = 25° C. 0.9V ~ 3.3V modules with 220µF/6.3V Tant cap (5.0V module with 100µF/10V tant cap). ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 6 NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – ...

Page 7

... General Specifications Vin=12V, full load and Ta=25° See graphs on pages 17-25. Control Specifications With remote on/off pin 1 open, the module is on. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com POWER PRODUCTS ...

Page 8

... OUTPUT CURRENT ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 8 NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A ...

Page 9

... OUTPUT CURRENT MODULE 1.0V 85% 80% 75% 70% 65% 60% 55% 50% 0.50 1.25 2.50 OUTPUT CURRENT Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 85% 80% 75% 10.8 70% 12 65% 13.2 60% 55% 50% 0.50 3.75 5.00 85% ...

Page 10

... Ta=25° C ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 10 NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A Ripple and noise at full load and 12Vdc input, 3.3Vdc output and Ta=25° ...

Page 11

... Ripple and noise at full load and 12Vdc input, 1.0Vdc output and Ta=25° C Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com POWER PRODUCTS Ripple and noise at full load and 12Vdc input, 1.2Vdc output and Ta=25° ...

Page 12

... Ta=25° C ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 12 NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – ...

Page 13

... Ta=25° C Vout=1.8V 50% to 100% load transients at 12V input and Ta=25° C Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com POWER PRODUCTS Vout=2.5V 100% to 50% load transients at 12V input and Ta=25° C Vout=1.8V 100% to 50% load transients at 12V input and Ta=25° ...

Page 14

... Ta=25° C ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 14 NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – ...

Page 15

... Ta=25° C Thermal Considerations Vin = 12V Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com Vout=0.9V 100% to 50% load transients at 12V input and Ta=25° C xRAH-05A1A0 0 ...

Page 16

... BP05xRAH-05A Thermal Considerations ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 16 NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A xRAH-05A1A0 2 ...

Page 17

... Trim Down Test Circuit xRAH-05A1A0 Trim Resistor Calculation 3.712 ( Rtrim up = – 0.261 Vo, adj – Vo Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com Trim Up Test Circuit Vo Trim Gnd ) Kohm ©2005 Bel Fuse Inc. ...

Page 18

... Rtrim up = Vo, adj – Vo ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 18 NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A ...

Page 19

... Rtrim down = – 8.47 Vo, adj – Vo 3.712 ( Rtrim up = – 3.83 Vo, adj – Vo Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com ) Kohm ) Kohm ©2005 Bel Fuse Inc. POWER PRODUCTS BP05xRAH-05A Specifications subject to change without notice. 03.05 ...

Page 20

... Vo, adj – Vo ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 20 NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A ...

Page 21

... Rtrim down = Vo, adj – Vo 3.712 ( Rtrim up = – 16.2 Vo, adj – Vo Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com ) Kohm ) Kohm ©2005 Bel Fuse Inc. POWER PRODUCTS BP05xRAH-05A Specifications subject to change without notice. 03.05 ...

Page 22

... Vo, adj – Vo ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 22 NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A ...

Page 23

... Rtrim down = – 17.94 Vo, adj – Vo 3.712 ( Rtrim up = – 13.3 Vo, adj – Vo Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com ) Kohm ) Kohm ©2005 Bel Fuse Inc. POWER PRODUCTS BP05xRAH-05A Specifications subject to change without notice. 03.05 ...

Page 24

... Vo, adj – Vo ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 24 NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A ...

Page 25

... Rtrim down = Vo, adj – Vo 3.712 ( Rtrim up = – 6.19 Vo, adj – Vo Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com ) Kohm ) Kohm ©2005 Bel Fuse Inc. POWER PRODUCTS BP05xRAH-05A Specifications subject to change without notice. 03.05 ...

Page 26

... Bel Fuse Inc. Specifications subject to change without notice. 03.05 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 26 NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A Suggested PCB Pad Layout ...

Page 27

... NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A Mechanical VRAH-05A 0.600 [15.24] 0.050 [1.27] 0.100 [2.54] 0.400 [10.16] Standard dimension tolerance is ±0.005 [0.13] unless otherwise noted RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products ...

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