VRAH-08B1A00 Bel Fuse Inc, VRAH-08B1A00 Datasheet

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VRAH-08B1A00

Manufacturer Part Number
VRAH-08B1A00
Description
CONV DC/DC 5V 8A 26.4W OUTPUT
Manufacturer
Bel Fuse Inc
Series
VRAHr
Type
Point of Load (POL) Non-Isolated with Remote On/Off and UVLOr
Datasheet
1.SRAH-08B1A0R.pdf (22 pages)

Specifications of VRAH-08B1A00

Output
0.9 ~ 3.3V
Number Of Outputs
1
Power (watts)
26W
Mounting Type
Through Hole
Voltage - Input
4.5 ~ 5.5V
Package / Case
5-SIP Module
1st Output
0.9 ~ 3.3 VDC @ 8A
Size / Dimension
0.70" L x 0.31" W x 0.65" H (17.8mm x 7.9mm x 16.5mm)
Power (watts) - Rated
26.4W
Operating Temperature
-40°C ~ 85°C
Efficiency
92%
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
3rd Output
-
2nd Output
-
Other names
VRAH-08B1A0
Description
The Bel SRAH-08B and VRAH-08B modules are a series of non-isolated, step down DC/DC power converters that operate
from a nominal 5V source. These converters are available in a range of output voltages from 0.9V to 3.3V. They are packaged
in a compact, overmolded package rated at 8A. 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 range (-40° to +85° C). The output is closely regulated and the
efficiency is typically 92% at full load. These products may be used almost anywhere low voltage silicon is employed and a 5V
source is available. Typical applications include file servers, routers, line cards and other computing and communications
equipment.
Applications
•
•
•
•
Part Number Selection
0
SRAH-08B / VRAH-08B Series
9 .
V
O
l o
V
Distributed power architectures
Data networking equipment
Telecommunications
Computers and peripherals
3
2
0
1
1
1
1
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NON-ISOLATED DC/DC CONVERTERS
5V Input / 0.9V – 3.3V Output / 8A
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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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©2006 Bel Fuse Inc.
S
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Specifications subject to change without notice. 02.06
POWER PRODUCTS
V
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BP06xRAH-08B
page 1

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VRAH-08B1A00 Summary of contents

Page 1

... Over current and short circuit protection Description The Bel SRAH-08B and VRAH-08B modules are a series of non-isolated, step down DC/DC power converters that operate from a nominal 5V source. These converters are available in a range of output voltages from 0.9V to 3.3V. They are packaged in a compact, overmolded package rated at 8A. 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 range (-40° ...

Page 2

... With simulated source impedance of 500nH, 5Hz to 20MHz. ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 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 5V Input / 0.9V – 3.3V Output / 8A ...

Page 3

... Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated. 1. Vin = 5V, Iout = full load 25° 20MHz, 1µF ceramic cap and 10µF aluminum cap on output. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com S y ...

Page 4

... Ta = 25° C without external load capacitance; when Vout=3.3V or 2.5V a 220µF aluminum cap is added at output. ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 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 5V Input / 0.9V – 3.3V Output / 8A ...

Page 5

... With remote on/off pin 1 open, the module is on. 2. Signal low and signal high varies based on Vin. Note: On/off pin designed to work with an open collector/drain switch. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com d u ...

Page 6

... OUTPUT CURRENT ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 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 5V Input / 0.9V – 3.3V Output / 8A 95% ...

Page 7

... Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com MODULE 1.2V 2.0 3.0 4.0 5.0 6.0 OUTPUT CURRENT MODULE 1.0V 2.0 3.0 4.0 5.0 6.0 OUTPUT CURRENT MODULE 0 ...

Page 8

... Ta=25° C ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 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 5V Input / 0.9V – 3.3V Output / 8A Ripple and noise at full load and 5Vdc input, 2.5Vdc output and Ta=25° ...

Page 9

... Ripple and noise at full load and 5Vdc 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 5Vdc input, 1.2Vdc output and Ta=25° ...

Page 10

... Ta=25° C ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 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 5V Input / 0.9V – ...

Page 11

... Ta=25° C Vout=1.0V 50% to 100% load transients at 5V 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=1.5V 100% to 50% load transients at 5V input and Ta=25° C Vout=1.2V 100% to 50% load transients at 5V input and Ta=25° ...

Page 12

... Specifications subject to change without notice. 02.06 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 5V Input / 0.9V – 3.3V Output / 8A Vout=0.9V 100% to 50% load transients at 5V input and Ta=25° C VRAH-08B ...

Page 13

... Vo is the nominal output voltage setpoint when trim pin is open ,Vo=1.805V Vo,adj is the adjusted output voltage. Rtrim-up is the resistance required between TRIM and GND. 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 ...

Page 14

... Rtrim-up is the resistance required between TRIM and GND. ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 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 5V Input / 0.9V – 3.3V Output / ...

Page 15

... Vo is the nominal output voltage setpoint when trim pin is open ,Vo=2.503V Vo,adj is the adjusted output voltage. Rtrim-up is the resistance required between TRIM and GND. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 4 1 ...

Page 16

... Rtrim-up is the resistance required between TRIM and GND. ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 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 5V Input / 0.9V – 3.3V Output / ...

Page 17

... Vo is the nominal output voltage setpoint when trim pin is open ,Vo=1.503V Vo,adj is the adjusted output voltage. Rtrim-up is the resistance required between TRIM and GND. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 4 1 ...

Page 18

... Rtrim-up is the resistance required between TRIM and GND. ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 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 5V Input / 0.9V – 3.3V Output / 8A ...

Page 19

... Rtrim-up is the resistance required between TRIM and GND. ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 5V Input / 0.9V – 3.3V Output / 8A ...

Page 20

... Rtrim-up is the resistance required between TRIM and GND. ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 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 5V Input / 0.9V – 3.3V Output / 8A ...

Page 21

... Standard dimension tolerance is ±0.005 [0.13] unless otherwise noted Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com Suggested PCB Pad Layout 0.065 [1.65] 0.855 [21.72] 0.100 [2.54] 0.320 0.020 [8.13] [0.51] 0.780 [19 ...

Page 22

... POWER PRODUCTS BP06xRAH-08B Mechanical VRAH-08B 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. These parts are not however compatible with the higher temperatures associated with lead free solder processes and must be soldered using a reflow profile with a peak temperature of no more than 240º ...

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