Delta Series H48SA - Manual
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Table of Contents:
- Page 2 – TECHNICAL SPECIFICATIONS; PARAMETER; NOTES and CONDITIONS
- Page 3 – ELECTRICAL CHARACTERISTICS CURVES; Figure
- Page 4 – Typical input characteristics at room temperature.
- Page 5 – is; Output voltage response to step-change in load
- Page 7 – DESIGN CONSIDERATIONS; Input Source Impedance; Test Result; Safety Considerations
- Page 8 – FEATURES DESCRIPTIONS; Over-Voltage Protection; Remote on/off implementation; Remote Sense; Vout; Effective circuit configuration for remote sense
- Page 10 – THERMAL CONSIDERATIONS; Thermal Testing Setup; Wind tunnel test setup
- Page 11 – Temperature measurement location for openframe; Temperature measurement location for heatspreader
- Page 12 – MECHANICAL DRAWING (WITHOUT HEATSPREADER); Function
- Page 14 – PART NUMBERING SYSTEM; MODEL LIST; Part Number; WARRANTY
1
FEATURES
High efficiency: 93.2% @ 12V/ 25A
Standard footprint: 58.4 x 61.0 x 11.2 mm
(2.30” x2.40”x0.44”)
Industry standard pin out
Single board construction
Fixed
frequency
operation
2250V
Isolation
Basic
insulation
Monotonic startup into normal and pre-
bias loads
Fully protected: input UVLO, output OVP,
OCP, OTP
No minimum load required
Wide output trim range: -20%, +10%
ISO 9001, TL 9000, ISO 14001, QS
9000, OHSAS 18001 certified
manufacturing facility
UL/cUL 60950-1 (US & Canada)
Recognized, and TUV (EN60950-1)
Certified
CE mark meets 73/23/EEC and
93/68/EEC directives
OPTIONS
Positive
on/off
Heatspreader available for extended
operation
APPLICATIONS
Telecom / DataCom
Wireless
Networks
Optical
Network
Equipment
Server and Data Storage
Industrial / Test Equipment
Delphi Series H48SA, Half Brick Family
DC/DC Power Modules: 48V in, 12V/25A out
The Delphi Series H48SA Half Brick, 48V input, single output, isolated,
open frame DC/DC converters are the latest offering from a world
leader in power systems technology and manufacturing — Delta
Electronics, Inc. This product family provides up to 300 watts of power
or up to 25A of output current in an industry standard footprint. This
product represents the next generation of design technology required
by today’s leading-edge circuitry. With creative design technology and
optimization of component placement, these converters possess
outstanding electrical and thermal performance, as well as extremely
high reliability under highly stressful operating conditions. Typical
efficiency of the 12V, 300W module is better than 93.2% and all
modules are fully protected from abnormal input/output voltage, current
and temperature conditions. The Delphi Series converters meet all
safety requirements with basic insulation. A variety of optional
heatsinks are available for extended thermal operation.
DATASHEET
DS_H48SA12025_05052008
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Summary
DS_H48SA12025_05052008 2 TECHNICAL SPECIFICATIONS (T A =25°C, airflow rate=300 LFM, V in =48Vdc, nominal Vout unless otherwise noted.) PARAMETER NOTES and CONDITIONS H48SA12025 (Standard) Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous 80 Vdc Transient (100ms) 100ms 100 Vdc Op...
DS_H48SA12025_05052008 ELECTRICAL CHARACTERISTICS CURVES 60 65 70 75 80 85 90 95 5 10 15 20 25 OUT PUT CURRENT (A) EF F IC IEN C Y ( % ) 36V in 75V in 48V in 0 5 10 15 20 25 30 0 5 10 15 20 25 OUT PUT CURRENT (A) PO W E R D ISSI PAT IO N ( W ) 36V in 48V in 75V in Figure 1: Efficiency vs. load curre...
DS_H48SA12025_05052008 4 ELECTRICAL CHARACTERISTICS CURVES 60 65 70 75 80 85 90 95 5 10 15 20 25 OUT PUT CURRENT (A) EF F IC IEN C Y ( % ) 36V in 75V in 48V in 0 5 10 15 20 25 30 0 5 10 15 20 25 OUT PUT CURRENT (A) P O W E R DI S S IP A T IO N ( W ) 36V in 48V in 75V in Figure 5: Efficiency vs. outp...
