Isolated and Regulated 20 WATT Modular DC/DC Converters FED20W series
WWW.ASTRODYNE.COM ASTRODYNE USA: 1-800-823-8082
ASTRODYNE PACIFIC: 886-2-26983458
Wide 4 : 1 Input Range
High Efficiency to 89%
Regulated Outputs
1600V Isolation
6 Sided Shielding
Standard Pinouts
Model Number Output Volts Output Amps Input Range Input Amps (NL/FL) Ripple & Noise Efficiency Capacitive Load
SINGLE OUTPUT
FED20-24S3P3W 3.3 VDC 5.5 9-36 VDC 50 / 934 mA 60mV p-p 85% 18000uF max.
FED20-48S3P3W 5.5 18-75 VDC 35 / 467 mA 60mV p-p 85% 18000uF max.
FED20-24S05W 5 VDC 4 9-36 VDC 65 / 922 mA 75mV p-p 88% 9600uF max.
FED20-48S05W 4 18-75 VDC 35 / 496 mA 75mV p-p 88% 9600uF max.
FED20-24S12W 12 VDC 1.67 9-36 VDC 22 / 1018 mA 75mV p-p 86% 1650uF max.
FED20-48S12W 1.67 18-75 VDC 15 / 503 mA 75mV p-p 87% 1650uF max.
FED20-24S15W 15 VDC 1.33 9-36 VDC 22 / 1014 mA 75mV p-p 86% 1050uF max.
FED20-48S15W 1.33 18-75 VDC 15 / 501 mA 75mV p-p 87% 1050uF max.
DUAL OUTPUT
FED20-24D05W ±5 VDC ±2 9-36 VDC 55 / 992 mA 100mV p-p 88% ±4800uF max.
FED20-48D05W ±2 18-75 VDC 35 / 490 mA 100mV p-p 89% ±4800uF max.
FED20-24D12W ±12 VDC ±0.833 9-36 VDC 30 / 1004 mA 100mV p-p 87% ±825uF max.
FED20-48D12W ±0.833 18-75 VDC 17 / 496 mA 100mV p-p 88% ±825uF max.
FED20-24D15W ±15 VDC ±0.667 9-36 VDC 30 / 1005 mA 100mV p-p 87% ±525uF max.
FED20-48D15W ±0.667 18-75 VDC 17 / 496 mA 100mV p-p 88% ±525uF max
Unit measures 1”W x 2”L x 0.4”H
Isolated and Regulated 20 WATT Modular DC/DC Converters FED20W series
WWW.ASTRODYNE.COM ASTRODYNE USA: 1-800-823-8082
ASTRODYNE PACIFIC: 886-2-26983458
INPUT SPECIFICATIONS
I/P Voltage Range (24/48V Nom.) 9-36 / 18-75VDC
Voltage Surge (100mS max) 24 V: 50 VDC; 48 V: 100 VDC
Under Voltage Lockout
24 VDC I/P DC/DC ON: 9 VDC OFF: 7.5 VDC
48 VDC I/P DC/DC ON: 15 VDC OFF: 18 VDC
Input Filter Pi Type
Input Voltage Variation (dv/dt) 5V/rms, max. to ETS300 132 part 4.4
Input Reflected Ripple Current 20mA p-p
Start Up Time (Power Up or RC) 20mS, typ.
On/Off Control Positive Logic: (Ref to - Input) is standard.
ON = Open or 3V < Vr < 12V
OFF = Short or 0V < Vr < 1.2V
Negative Logic: (optional)
ON = Short or 0V < Vr < 1.2V
OFF = Open or 3V < Vr < 12V
Efficiency See Selection Chart
OUTPUT SPECIFICATIONS
Voltage and Current See Selection Chart
Load Regulation NL-FL Singles: ±0.5%
Duals: ±1%
Cross Regulation (Dual 25%-FL) ±5%
Voltage Adjustability (Single O/P) ±10%
Line Regulation (Single/Dual) ±0.2% / ±0.5%
Temperature Coefficient ±0.02%/°C, max.
Ripple/Noise See Selection Chart
Voltage Accuracy ± 1%
Transient Response Recovery
25% Load Step Change 250 microSeconds
Short Circuit Protection Continuous Hiccup, self-recovering
Overvoltage Protection, Zener Diode Clamp:
3.3V Output 3.9Volts
5V Output 6.2Volts
12V Output 15Volts
15V Output 18Volts
Overload Protection 150% of FL Rating, typ.
GENERAL SPECIFICATIONS
Input-Out Isolation 1600VDC
In/Out Capacitance 1500 pF, max.
Isolation Resistance 10000 M Ohms
Switching Frequency 400Khz, typ
ENVIRONMENTAL SPECIFICATIONS
Oper. Temperature -40 to +105°C (see derate curve)
Relative Humidity 5-95%
Storage Temperature -55 to +125°C *
Maximum Case Temp 105°C *
Thermal Impedance Convection: 12°C/Watt
Convection w. Heatsink: 10°C/Watt
Thermal Shock MIL-STD-810D
Vibration 10-55Hz 10G 30 min. on X, Y, Z axes
MTBF
BELLCORE TR-NWT-000322 Case 1: 50% Stress, Temp. @ 40°C
1.691 MHrs
MIL-HDBK-217F TA=25°C FL, Ground Benign, Controlled Environment
562.9 KHrs
EMI EN55022A
ESD EN61000-4-2 Criteria B
Radiated Immunity EN61000-4-3 Criteria A
EFT EN61000-4-4B Criteria B
Surge EN61000-4-5B Criteria B
Conducted Immunity EN61000-4-6A Criteria A
PHYSICAL SPECIFICATIONS
Case Material Nickel-Coated Copper w. FR4 Base
Construction Encapsulated w, UL94-V0 Epoxy
Dimensions 2”L x 1”W x 0.4”H
(50.8 x 25.4 x 10.2mm)
Weight 0.95oz (27g)
* 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
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.
Isolated and Regulated 20 WATT Modular DC/DC Converters FED20W series
WWW.ASTRODYNE.COM ASTRODYNE USA: 1-800-823-8082
ASTRODYNE PACIFIC: 886-2-26983458
OUTPUT DERATING CURVES
MECHANICAL DIMENSIONS
Pin # Single Dual
1 + Input + Input
2 - Input - Input
3 + Output + Output
4 Trim Common
5 - Output - Output
6 CTRL CTRL
