ACON
TM
DC-DC CONVERTERS
GH Single output 25 to 150W
Input Ranges:
10 - 75V
Single Output:
3.3V, 5.0V, 7.5V
12V, 15V, 24V
28V, 48V, 60V, 80V
Dual Output:
+5V/+12V
+5V/+15V
Bipolar Output:
±12V
±15V
FEATURES
General:
• Small footprint : 1.9” x 3.0”
• Output power : 25 - 100 watts
• Wide input range : 10-75Vdc
• Encapsulated
• Integral PCB transformer
• High conversion efficiency to 88%
• Line & load regulation to ±0.5%
• Fixed operating frequency
Protection:
• Output over-voltage protection
• Output over-load protection
• Hiccup mode short circuit
protection
• Over-temperature protection
• Input under-voltage lock-out
Control:
• Enable (On/Off) Control
• Output Voltage Trim
Isolation:
• Isolation Voltage > 1500V
APPLICATIONS
• Distributed Power Systems
• Workstations
• Computer Equipment
• Communications Equipment
ACON, INC. • www.aconinc.com
GH series is a family of 25W to 100W DC-DC converters with high power
density, high efficiency, and high reliability. These converters are designed for wide
input range telecommunications, industrial, and instrument applications. The wide
input range (2:1, 3:1) is ideal for battery or unregulated input applications.
Integral PCB transformer / inductor is used for all models in this series. This new
design technique has greatly improved the magnetic coupling, reduced switching
spike and provided performance consistency. It also streamlines the production
process by completely eliminating the hand-wind magnetic assembly process from
production lines.
GH series provides the most extensive protection to safeguard both the power
converter and the load. It includes output over-voltage protection, over-current
protection, hiccup mode indefinite short circuit protection, under-voltage lockout
and over-temperature protection. Over-current inception point is set at about 115%
of rated load. Hiccup mode cycles at 28mSec period with 3mSec on and 25mSec
off. Over-temperature shutdown activated at +115°C board temperature will recover
when the temperature falls below +95°C.
GH series features low output noise, very tight line and load regulation, and high
efficiency. There is no external capacitor requirement for normal operation. Output
trim pin is standard.
TABLE OF CONTENT
Specifications........................................................................................................ P.
Single Output........................................................................................................ P.
Dual Output.......................................................................................................... P.
.
Bipolar Output...................................................................................................... P.
GH
Series
July 20, 2007
2
4
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