ACON
DC-DC CONVERTERS
TM
HS
Series,
20 - 60W
Input Ranges :
9-75 VDC
Output Output:
Single Output
3.3V
5.0V
9.0V
12V
15V
24V
Output Power:
30 W
FEATURES
General:
• Small footprint : 1.6” x 4.0”
• Current-Mode Control
• Input/Output Isolation
• Input Voltage from 9 to 75Vdc
• 4:1 Input Voltage Range
• High conversion efficiency to 84%
• Line & load regulation to ±1.0%
• Fixed operating frequency
• Six-Sided Shielding
Isolation:
• Isolation Voltage >500V
APPLICATIONS
• PoE (Power over Ethernet)
• Distributed Power Systems
• Workstations
• Computer Equipment
• Communications Equipment
ACON’s HS series single Output converter are designed for telecommunications,
industrial and instrument applications. The wide input range (2:1 & 4:1) is ideal for
battery or unregulated input applications. These converters features current-mode
with MOSFET switching at 200 KHz. Automatic feed-forward compensation,
pulse-by-pulse current limiting and output short-circuit protection are standard for
all models. Input is well filtered to reduce reflected ripple current and efficiency is
constant virtually independent of line variation. Mounting inserts are provided for
chassis and/or heatsink mounting. All models are encapsulated in a 1.60” x 4.0” x
0.53” metal case with six-sided emi/rfi shielding.
TABLE OF CONTANTS :
General
Specifications
.................................................................................................. 2
Single Output ................................................................................................................ 4
ACON, INC.
• www.aconinc.com
HS
Series
Rev. Mar. 12, 1998
Pg. 1 of 5
ACON
Input Voltage
DC-DC CONVERTERS
TM
HS
Series,
20 - 60W
Conditions / Description
12
24
48
W-24
W-48
12
24
48
W-24
W-48
All models, base plate temperature
Ambient
Input to Output
1. Absolute Maximum Ratings
Parameter
Continuous
Stresses in excess of the absolute maximum ratings can cause performance degradation, adversely effect longterm reliability,
and cause permanent damage to the device.
Min
-0.3
-0.3
-0.3
-0.3
-0.3
-0.3
-0.3
-0.3
-0.3
-0.3
-40
-55
Max
20
38
78
38
78
20
40
80
40
80
+95
+105
+700
Units
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
°C
°C
Vdc
Transient
(100mSec.)
Operating Temperature
Storage Temperature
Isolation Voltage
2. Input Specifications
Parameter
Input Voltage
Voltage Range
(Continuous)
12
24
48
W-24
W-48
Conditions / Description
Min
9
18
36
10
20
Nom
12
24
48
24
48
Max
18
36
75
36
75
Units
Vdc
Vdc
Vdc
Vdc
Vdc
3. Output Specifications
Parameter
Voltage Accuracy
Output Current
Over Voltage Protection
Line Regulation
Load Regulation
Transient Respoonse
Ripple & Noise
Switching Frequency
Please see table
Please see table
Not available
Conditions / Description
Min
Nom
Max
±1.0
±1.0
50% ± 25% step load change
Please see table
400
200
%
Adc
Vdc
%Vout
%Vout
µSec.
mVp-p
KHz
Units
ACON, INC.
• www.aconinc.com
HS
Series
Rev. Mar. 12, 1998
Pg. 2 of 5
ACON
DC-DC CONVERTERS
TM
HS
Series,
20 - 60W
Conditions / Description
Input to Output
Input to Output
4. Isolation Specifications
Parameter
Isolation Voltage
Input to Output
I/O to Case
Isolation Resistance
Isolation Capacitance
Min
500
500
10
Nom
Max
Units
Vdc
Vdc
MΩ
nF
3
5. Environmental and Mechanical Specifications
Parameter
Conditions / Description
Operating Temperature
Storage Temperature
Thermal Impedance
Temperature Coefficient
Shock
Sinusoidal Vibration
Humidity
Case Material
Weight
MTBF (calculated)
Case Temperature
Free Convection
Halfsine wave, 3 axes
GR-63-CORE, Section 5.4.2
Relative Humidity, Non-Condensing
Black Coated Metal
Bellcore TR-NWT-000332 method 1 - parts count
Min
-25
-55
50
1
20
0.5
Nom
7.0
Max
+85
+105
±0.02
95
°C
°C
°C/Watt
%/°C
g
g
%R.H.
Oz (g)
MHrs
Units
3.6 (102)
ACON, INC.
• www.aconinc.com
HS
Series
Rev. Mar. 12, 1998
Pg. 3 of 5
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