Isolated and Regulated 25 to 50 WATT Modular DC/DC Converters ASD50 series
WWW.ASTRODYNE.COM ASTRODYNE USA: 1-800-823-8082
ASTRODYNE PACIFIC: 886-2-26983458
Wide 2:1 Input Range
1500V Isolation
Remote ON/OFF Control
High Efficiency
Input PI Filter
Five-Sided Shield
Model Number Output Voltage Output Amps Input Range Efficiency
ASD50-12S25 2.5 VDC 10 9-18 VDC 76.00%
ASD50-24S25 10 18-36 VDC 77.00%
ASD50-48S25 10 36-75 VDC 77.00%
ASD50-12S3 3.3 VDC 10 9-18 VDC 78.00%
ASD50-24S3 10 18-36 VDC 79.00%
ASD50-48S3 10 36-75 VDC 79.00%
ASD50-12S5 5 VDC 10 9-18 VDC 81.00%
ASD50-24S5 10 18-36 VDC 82.00%
ASD50-48S5 10 36-75 VDC 83.00%
ASD50-12S12 12 VDC 4.16 9-18 VDC 84.00%
ASD50-24S12 4.16 18-36 VDC 85.00%
ASD50-48S12 4.16 36-75 VDC 85.00%
ASD50-12S15 15 VDC 3.33 9-18 VDC 84.00%
ASD50-24S15 3.33 18-36 VDC 85.00%
ASD50-48S15 3.33 36-75 VDC 85.00%
ASD50-12S24 24 VDC 2.08 9-18 VDC 84.00%
ASD50-24S24 2.08 18-36 VDC 86.00%
ASD50-48S24 2.08 36-75 VDC 86.00%
Unit measures 2.28”W x 2.4”L x 0.5”H
Isolated and Regulated 25 to 50 WATT Modular DC/DC Converters ASD50 series
WWW.ASTRODYNE.COM ASTRODYNE USA: 1-800-823-8082
ASTRODYNE PACIFIC: 886-2-26983458
INPUT SPECIFICATIONS
Input Voltage Ranges: 12 VDC Nominal 9-18 VDC
24 VDC Nominal 18-36 VDC
48 VDC Nominal 36-75 VDC
Undervoltage Lockout 12Vin Power Up 8.8V
12Vin Power Down 8V
24Vin Power Up 17V
24Vin Power Down 16V
48Vin Power Up 34V
48Vin Power Down 32.5V
Input Filter PI Type
OUTPUT SPECIFICATIONS
Voltage and Current See Selection Chart
Load Regulation (0% to FL) +/-0.2%, max.
Line Regulation (HL-LL) +/-0.2%, max.
Temperature Coefficient +/-0.03%/°C
Ripple/Noise 2.5, 3.3 & 5Vout 20mV RMS, max.
75mVp-p max.
12 & 15Vout 30mV RMS, max.
100mVp-p max.
24Vout 100mV RMS, max.
240mVp-p max.
Voltage Accuracy +/-1%, max
Transient Response 25% Change <500uS
Trim Adjustment Range +/-10%
Short Circuit Protection Continuous
Over Voltage Protection 115-140% of Output
Current Limit 110-150% of Rated Load
Efficiency See Selection Chart
GENERAL SPECIFICATIONS
Input-Output Isolation
I/P-O/P, I/P-Case, O/P-Case 1500VDC
Isolation Resistance 10-7nth Ohm min.
Switching Frequency 12 & 24Vin 400kHz
48Vin 300kHz
Safety UL60950
ENVIRONMENTAL SPECIFICATIONS
Oper. Case Temperature -40 to +100°C
Thermal Shutdown, Case Temp. 100°C typ.
Storage Temperature -55 to +105°C *
Cooling Free Air Convection
MTBF 1,005,677 Hrs.
MIL-HDBK-217F
Ground Benign, 25°C
PHYSICAL SPECIFICATIONS
Case Material Aluminum
Construction Fully Encapsulated
Weight 5 oz (142g)
Dimensions 2.28” x 2.4” x 0.5”
REMOTE ON/OFF CONTROL
Logic Compatibility Open Collector
Referenced to - Input
Module-On Open Circuit
Module-Off <0.8VDC
Shutdown Idle Current 10mA
EXTERNAL OUPUT TRIMMING
* These are stress ratings. Exposure of the devices to any of these conditions
may adversely affect long term reliability. Proper operation under conditions
other than the standard operating conditions is neither warranteed nor implied.
All specifications are typical at nominal input, full load, and 25DegC unless
otherwise noted
Isolated and Regulated 25 to 50 WATT Modular DC/DC Converters ASD50 series
WWW.ASTRODYNE.COM ASTRODYNE USA: 1-800-823-8082
ASTRODYNE PACIFIC: 886-2-26983458
MECHANICAL DIMENSIONS
Pin # Function
1 + Input
2 Remote On/Off
3 Case
4 - Input
5 - Output
6 - Sense
7 Trim
8 + Sense
9 + Output Astrodyne products are not authorized or warranteed for use
as critical components in life support systems, equipment used
in hazardous environments, nuclear controls systems, or other
mission-critical applications.
