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I s o l a t e d a n d R e gulated 40 WATT Modular DC/DC Converters
Wide 2 : 1 Input Range High Efficiency Regulated Outputs 1600V Isolation Full EMI Shielding L-C Type Input Filter
Unit measures 2.0"W x 2.0"L x 0.4"H
fec40
series
Model Number Output Voltage Output Amps
SINGLe OUTPUT FEC40-24S3P3 FEC40-48S3P3 FEC40-24S05 FEC40-48S05 FEC40-24S12 FEC40-48S12 FEC40-24S15 FEC40-48S15 DUAL OUTPUT FEC40-24D3305 FEC40-48D3305 TRIPLe OUTPUT FEC40-24T3312 FEC40-48T3312 FEC40-24T3315 FEC40-48T3315 FEC40-24T0512 FEC40-48T0512 FEC40-24T0515 FEC40-48T0515
Input Range
efficiency
Ripple & Noise
3.3 VDC 5 VDC 12 VDC 15 VDC
8 8 8 8 3.33 3.33 2.66 2.66 4/4 4/4 6, +/-0.40 6, +/-0.40 6, +/-0.30 6, +/-0.30 6, +/-0.40 6, +/-0.40 6, +/-0.30 6, +/-0.30
18-36 VDC 36-75 VDC 18-36 VDC 36-75 VDC 18-36 VDC 36-75 VDC 18-36 VDC 36-75 VDC 18-36 VDC 36-75 VDC 18-36 VDC 36-75 VDC 18-36 VDC 36-75 VDC 18-36 VDC 36-75 VDC 18-36 VDC 36-75 VDC
50mV Pk-Pk 50mV Pk-Pk 50mV Pk-Pk 50mV Pk-Pk 75mV Pk-Pk 75mV Pk-Pk 75mV Pk-Pk 75mV Pk-Pk 100mV Pk-Pk 100mV Pk-Pk 50 / 75mV Pk-Pk 50 / 75mV Pk-Pk 50 / 75mV Pk-Pk 50 / 75mV Pk-Pk 50 / 75mV Pk-Pk 50 / 75mV Pk-Pk 50 / 75mV Pk-Pk 50 / 75mV Pk-Pk
87% 88% 89% 90% 88% 89% 89% 89% 84% 85% 85% 86% 85% 86% 87% 88% 87% 88%
3.3 / 5 VDC
3.3, +/-12 VDC 3.3, +/-15 VDC 5, +/-12 VDC 5, +/-15 VDC
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astrodyne.com
300 Myles Standish Blvd., Taunton, MA 02780 Ph: 1-800-823-8082 fax: 508-823-8181
I s o l a t e d a n d R e gulated 40 WATT Modular DC/DC Converters
INPUT SPecIfIcATIONS
24 VDC Nominal 18-36 VDC 48 VDC Nominal 36-75 VDC Input Filter (Note 6) L-C Type Under Voltage Lockout 24V Input DC-DC On: 17.8V DC-DC Off: 16V 48V Input DC-DC On: 36V DC-DC Off: 34V Input Voltage Variation dv/dt 5V / mS, max. (Complies with ETS300 132 part 4.4) Input Surge Voltage 100mS max. 24V Input 50VDC 48V Input 100VDC Input Reflected Ripple (Note 7) Nom I/P and FL 40mA Pk-Pk Start Up Time Nom. I/P and Static Resistive Load 25mS, typ. Remote ON/OFF (Note 8) DC-DC On: Open or 3.5V < Vr < 12V DC-DC Off: Short or 0V < Vr < 1.2V Remote Off Input Current Nom. Input: 2.5mA Input Voltage Ranges:
fec40
series
3.9Volts 6.2Volts 15Volts 18Volts
OVP Threshold, Zener Diode Clamp: 3.3V Output 5V Output 12V Output 15V Output
GeNeRAL SPecIfIcATIONS
Input-Out Isolation Isolation Resistance Isolation Capacitance Efficiency Switching Frequency (Note 9) 1600VDC 10-9nth Ohms 1000pF, Max. See Selection Chart 300Khz, typ
eNVIRONMeNTAL SPecIfIcATIONS
Oper. Temperature Storage Temperature Relative Humidity Maximum Case Temp Over Temp. Protection Thermal Impedance (Note 11) -40 to +85C with derate -55 to +105C * 5 to 95% RH * 100C * 115C, typ. Convection: 9.2C/Watt Heat Sink w. 20LFM 8.5C/Watt Heat Sink w. 500LFM 2.8C/Watt MIL-STD-810D 10-55Hz, 2G, 30 Minutes along X, Y and Z Axes 1.398 MHrs
OUTPUT SPecIfIcATIONS
Output Power Voltage and Current O/P Accuracy (FL & Nom I/P) 40 Watts Max. See Selection Chart single/dual; +/- 1% Triple Main: +/-1% Triple Aux.: +/-3% +/-10% 10% singles: +/-0.5% duals: +/-1% Triple Main: +/-2% Triple Aux.: +/-5% single/dual; +/- 0.5% Triple Main: +/-1% Triple Aux.: +/-5% single/dual/triple main +/-1% triple aux. +/-5% +/-0.02%/DegC, Max. See Selection Chart (25% Load Step) 400uS (singles/duals) +/- 2% (triples) 5 V:+/-2%, Aux: +/-5% FL, Nom. I/P: 150% Max. Hiccup, Auto Recovery
Thermal Shock Vibration MTBF (Note 10)
Voltage Adjust (Note 1) Min. Load-Triple Only (Note 2) Load Regulation-10%-FL (Note 3)
PHYSIcAL SPecIfIcATIONS
Case Material Construction Dimensions Weight Nickel-Coated Copper Non-Conductive Base Fully Encapsulated with UL94-VO Epoxy 2.0" x 2.0" x 0.40" 2.11 oz, (60g)
Line Regulation
Cross Regulation (Note 4) Temperature Coefficient Ripple/Noise (Note 5) Transient Response Voltage Stability Over Load Protection Short Circuit Protection
* 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
WWW.ASTRODYNe.cOM
300 Myles Standish Blvd., Taunton, MA 02780 Ph: 1-800-823-8082 fax: 508-823-8181
I s o l a t e d a n d R e gulated 40 WATT Modular DC/DC Converters
Notes: 1. 2. 3. 4.
fec40
series
5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15.
Maximum output deviation is 10% inclusive of remote sense and him. If remote sense is not being used, the +Vsense should be connected to its corresponding +OUTPUT and likewise the sense should be connected to its corresponding -OUTPUT. Triple outputs requires a minimum 10% loading on the output to maintain specified regulation. Operation under no-load condition will not damage these devices, however they may not meet all listed specifications Load regulation for triple output: Main output (V1): 10 to 100% with 10% to 100% balanced on auxiliaries. Auxiliary outputs (V2 and V3): 10% to 100% balanced on all outputs. Cross regulation for triple output: Main output 100% load, auxiliary 100%, other auxiliary 25% to 100%. Auxiliary outputs (V2 and V3): main output 100% load, auxiliary 100%, other auxiliary 25% to 100% or main output 25%, auxiliary 25%, other auxiliary 25% to 100%. The models of FEC40-XXD3305 are specified with a 1uF ceramic output capacitors. An external filter capacitor is required for normal operation. The capacitor should be capable of handing 1A ripple current for 48V/24V models. Astrodyne suggests: Nippon chemi-con KMF series, 220F/100V, ESR 9OmU. Simulated source impedance of 12uH. 12uH inductor in series with +Vin. The ON/OFF control pin voltage is referenced to negative Input. Switching frequency for dual output: Master (5Vo) 300KHz; Slave (3.3Vo) 500KHz BELLCORE TR-NWT-000332. Case I: 50% Stress, Temperature at 4OC. (Ground fixed and controlled environment). Heat sink is optional and P/N: 7G-OO26A. Any condition of dual output (3.3V/5V) rated lout current, not to exceed 8A of total output currents. Maximum value at nominal input voltage and full load. Typical value at nominal input voltage and full load. Test by minimum Vin and constant resistor load.
MecHANIcAL DIMeNSIONS
2.00 (50.8) 1.10 (27.9) 0.40 (10.2) 0.20 (5.1) 0.40 (10.2) DIA. 0.04
Pin# Single
1 2 3 4 5 6 7 8 9 +INPUT -INPUT CTRL NC -SENSE (note 1) +SENSE (note 1) +OUTPUT -OUTPUT TRIM
Dual
+INPUT -INPUT CTRL 3.3V 3.3V RTN (COM) NC NC 5V 5V RTN (COM)
Triple
+INPUT -INPUT CTRL +AUX COMMON -AUX +OUTPUT -OUTPUT (COM) NC
3
2.00 (50.8)
2
1
1.80 (45.7)
BOTTOM VIEW 98 76 5 4
0.10 (2.5) 0.30 (7.6) 0.60 (15.2) 0.80 (20.3) 0.20 (5.1) 0.50 (12.7) 0.22 (5.6)
exTeRNAL OUTPUT TRIMMING
TRIM UP TRIM DOWN
8(8)
9(9)
RU
9(9) 7(5)
RD
1. All dimensions in Inches (mm) Tolerance: X.XX 0.02 (X.X 0.5) X.XXX 0.01 (X.XX 0.25) 2. Pin pitch tolerance 0.014(0.35)
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.
WWW.ASTRODYNe.cOM
300 Myles Standish Blvd., Taunton, MA 02780 Ph: 1-800-823-8082 fax: 508-823-8181
I s o l a t e d a n d R e gulated 40 WATT Modular DC/DC Converters
OUTPUT DeRATING cURVe
FEC40-48S05 Derating Curve OUTPUT POWER (%)
100 75 50 25
fec40
series
Nature convection
0 -40-25-10 0
50 60 70 80 90 100
AMBIENT TEMPERATURE (C)
FEC40-48S05 Efficiency VS Input voltage
92 91 90 89 88 87 86 85 84 83 82 36
EFFICIENCY (%)
42
48
54
60
66
72
75
INPUT VOLTAGE (V)
FEC40-48S05 Efficiency VS Output load
94 92 90 88 86 84 82 80 75 70 65
EFFICIENCY (%)
1
2
3
4
5
6
7
8
OUTPUT LOAD (A)
WWW.ASTRODYNe.cOM
300 Myles Standish Blvd., Taunton, MA 02780 Ph: 1-800-823-8082 fax: 508-823-8181

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