Isolated and Regulated 20 WATT Modular DC/DC Converters

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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

Maximum Case Temp

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)

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