Isolated and Regulated 20 WATT Modular DC/DC Converters
FED20W series
INPUT SPECIFICATIONS
GENERAL SPECIFICATIONS
I/P Voltage Range (24/48V Nom.) 9-36 / 18-75VDC
Input-Out Isolation
In/Out Capacitance
Isolation Resistance
Switching Frequency
1600VDC
Voltage Surge (100mS max)
Under Voltage Lockout
24 V: 50 VDC; 48 V: 100 VDC
1500 pF, max.
10000 M Ohms
400Khz, typ
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
Pi Type
Input Filter
ENVIRONMENTAL SPECIFICATIONS
Input Voltage Variation (dv/dt)
Input Reflected Ripple Current
5V/rms, max. to ETS300 132 part 4.4
20mA p-p
Oper. Temperature
Relative Humidity
-40 to +105°C (see derate curve)
Start Up Time (Power Up or RC) 20mS, typ.
5-95%
On/Off Control
Positive Logic:(Ref to - Input) is standard.
Storage Temperature
Maximum Case Temp
Thermal Impedance
-55 to +125°C *
105°C *
Convection: 12°C/Watt
Convection w. Heatsink: 10°C/Watt
MIL-STD-810D
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
See Selection Chart
Thermal Shock
Vibration
10-55Hz 10G 30 min. on X, Y, Z axes
Efficiency
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
OUTPUT SPECIFICATIONS
Voltage and Current
See Selection Chart
Singles: ±0.5%
Duals: ±1%
EMI
EN55022A
Load Regulation NL-FL
ESD
EN61000-4-2 Criteria B
EN61000-4-3 Criteria A
EN61000-4-4B Criteria B
EN61000-4-5B Criteria B
EN61000-4-6A Criteria A
Radiated Immunity
EFT
Cross Regulation (Dual 25%-FL) ±5%
Voltage Adjustability (Single O/P) ±10%
Surge
Line Regulation
(Single/Dual) ±0.2% / ±0.5%
Conducted Immunity
Temperature Coefficient
Ripple/Noise
±0.02%/°C, max.
See Selection Chart
± 1%
Voltage Accuracy
PHYSICAL SPECIFICATIONS
Transient Response Recovery
25% Load Step Change
250 microSeconds
Case Material
Construction
Dimensions
Nickel-Coated Copper w. FR4 Base
Encapsulated w, UL94-V0 Epoxy
2”L x 1”W x 0.4”H
Short Circuit Protection Continuous Hiccup, self-recovering
Overvoltage Protection, Zener Diode Clamp:
3.3V Output
5V Output
3.9Volts
6.2Volts
15Volts
18Volts
(50.8 x 25.4 x 10.2mm)
0.95oz (27g)
Weight
12V Output
15V Output
All specifications are typical at nominal input, full load, and 25DegC unless
otherwise noted
Overload Protection
150% of FL Rating, typ.
* 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.
ASTRODYNE USA: 1-800-823-8082
ASTRODYNE PACIFIC: 886-2-26983458
WWW.ASTRODYNETDI.COM