ACON
F
Series,
15-20W
TM
DC-DC CONVERTERS
Exclusively distributed by Powerstax
Input Ranges :
9-75 VDC
Output Output:
Single Output
3.3V - 24V
Bipolar Output
±5.0V, ±12V, ±15V
Triple Output
+5.0V / ±12V,
+5.0V / ±15V
Output Power:
15 - 20 W
The
F
DC-DC converters feature high power density, high efficiency and
excellent line & load regulation. Using innovative design technique, state-of-the
art Current Mode PWM control, and Surface Mount packaging & manufacturing
technology, the FS series provides up to 20 watts of well regulated power in a
encapsulated 2.0” x 2.0” x 0.40” metal case with six-sided EMI/RFI shielding.
Automatic feed forward compensation, pulse-by-pulse current limiting, and output
short circuit protection are standard for all models.
These converters are designed for wide input range telecommunications,
industrial and instrument applications. The wide input range (2:1 & 4:1) is ideal for
battery or unregulated input applications.
No external components are needed for normal operation. Low ESR capacitors
are used to minimize the conductive noise. This package is ideal for all I/O board
system and distributed DC power configurations.
FEATURES
General:
• Small footprint : 2.0” x 2.0”
• Current-Mode Control
• Input/Output Isolation
• Input Voltage from 9 to 75Vdc
• 2:1 & 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
• Distributed Power Systems
• Workstations
• Computer Equipment
• Communications Equipment
TABLE OF CONTENTS :
General
Specifications
.................................................................................................. 2
Single Output ................................................................................................................ 4
Bipolar Output ............................................................................................................ 6
Triple Output ................................................................................................................. 8
ACON, INC.
• www.aconinc.com
F
Series
Rev. Mar. 12, 1998
Pg. 1 of 9
ACON
F
Series,
15-20W
TM
DC-DC CONVERTERS
Exclusively distributed by Powerstax
1. Absolute Maximum Ratings
Parameter
Stresses in excess of the absolute maximum ratings can cause performance degradation, adversely effect longterm reliability,
and cause permanent damage to the device.
Input Voltage
Conditions / Description
12
24
48
W24
W48
12
24
48
W-24
W-48
All models, base plate temperature
Ambient
Input to Output
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
22
40
80
40
80
+95
+105
+700
Units
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
°C
°C
Vdc
Continuous
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. Enable (On-Off Control)
Parameter
Enable Pin
Open Circuit Voltage
Source Current
Positive Logic
On-Control
Off-Control
Negative Logic
Conditions / Description
Standard
Logic High or Floating
Not Available
Min
Nom
5
Max
1
Units
Vdc
mA
Vdc
Vdc
5.0
-0.5
18
1.8
* Enable pin can be left floating if not used.
4. Output Specifications
Parameter
Voltage Accuracy
Output Current
Output Trim
Over Voltage Protection
Line Regulation
Load Regulation
Transient Respoonse
Ripple & Noise
Switching Frequency
Conditions / Description
Please see table
Please see table
Not Available
Not available
50% ± 25% step load change
Please see table
Min
Nom
Max
±1.0
±1.0
400
100
%
Adc
%Vout
Vdc
%Vout
%Vout
µSec.
mVp-p
KHz
Units
ACON, INC.
• www.aconinc.com
F
Series
Rev. Mar. 12, 1998
Pg. 2 of 9
ACON
F
Series,
15-20W
TM
DC-DC CONVERTERS
Exclusively distributed by Powerstax
5. Output Trim
Parameter
Negative Trim
Trim Up
Trim Down
Positive Trim
Conditions / Description
Standard
Trim Pin to (-)Vout
Trim Pin to (+)Vout
Not Available
Min
10
Nom
Max
10
Units
%Vdc
%Vdc
* Trim pin can be left floating if not used
6. Environmental and Mechanical Specifications
Parameter
Conditions / Description
Operating Temperature
Storage Temperature
Temperature Coefficient
Shock
Sinusoidal Vibration
Humidity
Weight
MTBF (calculated)
PCB Temperature
Halfsine wave, 3 axes
GR-63-CORE, Section 5.4.2
Relative Humidity, Non-Condensing
Bellcore TR-NWT-000332 method 1 - parts count
Min
-40
-55
50
1
Nom
Max
+95
+105
±0.02
95
Units
°C
°C
%/°C
g
g
%R.H.
Oz (g)
MHrs
6.7 (190)
0.5
7. Isolation Specifications
Parameter
Isolation Voltage
Input to Output
I/O to Case
Isolation Resistance
Isolation Capacitance
Conditions / Description
Min
500
500
10
Nom
Max
Units
Vdc
Vdc
MΩ
nF
Input to Output
Input to Output
3
ACON, INC.
• www.aconinc.com
F
Series
Rev. Mar. 12, 1998
Pg. 3 of 9
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