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SD25 25w Power Supplies

25W Single Output DC-DC Converter

2:1 wide input range

Protections: Short circuit/Over load/Over voltage

1500VDC I/O isolation

Built-in EMI filter, low ripple noise

100% full load burn-in test

Fixed switching frequency at 83KHz

Model Number

Input Voltage Range

DC Current

Minimum Load Requirement

Output Voltage

Output Amps

Load Regulation

Line Regulation

Efficiency

SD25A-5

9.2~18VDC

3.2A/12V

0~5A

5V

5A

±0.5%

±0.5%

71% typ.

SD25B-5

19~36VDC

3.2A/12V

0~5A

5V

5A

±0.5%

±0.5%

72% typ.

SD25C-5

36~72VDC

3.2A/12V

0~5A

5V

5A

±0.5%

±0.5%

74% typ.

SD25A-12

9.2~18VDC

1.6A/24V

0~2.1A

12V

2.1A

±0.3%

±0.3%

72% typ.

SD25B-12

19~36VDC

1.6A/24V

0~2.1A

12V

2.1A

±0.3%

±0.3%

75% typ.

SD25C-12

36~72VDC

1.6A/24V

0~2.1A

12V

2.1A

±0.3%

±0.3%

78% typ.

SD25A-24

9.2~18VDC

0.8A/48V.

0~1.1A

24V

1.1A

±0.2%

±0.2%

75% typ.

SD25B-24

19~36VDC

0.8A/48V

0~1.1A

24V

1.1A

±0.2%

±0.2%

78% typ.

SD25C-24

36~72VDC

0.8A/48V

0~1.1A

24V

1.1A

±0.2%

±0.2%

71% typ.

Model Number

Ripple and Noise

Voltage Tolerance

Over Voltage Protection

DC Voltage Adjust (typ.)

MTBF

SD25A-5

100mVp-p max. (Note 2)

±2% (Note 3)

5.75~6.75V/10% load. Protection type: Hiccup mode, recovers automatically after fault condition is removed

4.5~5.5VDC

374.3K hrs min. MIL-HDBK-217F (25°C)

SD25B-5

100mVp-p max. (Note 2)

±2% (Note 3)

5.75~6.75V/10% load. Protection type: Hiccup mode, recovers automatically after fault condition is removed

4.5~5.5VDC

365.9K hrs min. MIL-HDBK-217F (25°C)

SD25C-5

100mVp-p max. (Note 2)

±2% (Note 3)

5.75~6.75V/10% load. Protection type: Hiccup mode, recovers automatically after fault condition is removed

4.5~5.5VDC

377.5K hrs min. MIL-HDBK-217F (25°C)

SD25A-12

120mVp-p max. (Note 2)

±1% (Note 3)

16.8~20V/10% load. Protection type: Hiccup mode, recovers automatically after fault condition is removed

11~16VDC

374.3K hrs min. MIL-HDBK-217F (25°C)

SD25B-12

120mVp-p max. (Note 2)

±1% (Note 3)

16.8~20V/10% load. Protection type: Hiccup mode, recovers automatically after fault condition is removed

11~16VDC

365.9K hrs min. MIL-HDBK-217F (25°C)

SD25C-12

120mVp-p max. (Note 2)

±1% (Note 3)

16.8~20V/10% load. Protection type: Hiccup mode, recovers automatically after fault condition is removed

11~16VDC

377.5K hrs min. MIL-HDBK-217F (25°C)

SD25A-24

150mVp-p max. (Note 2)

±1% (Note 3)

31.5~37.5V/10% load. Protection type: Hiccup mode, recovers automatically after fault condition is removed

23~30VDC

374.3K hrs min. MIL-HDBK-217F (25°C)

SD25B-24

150mVp-p max. (Note 2)

±1% (Note 3)

31.5~37.5V/10% load. Protection type: Hiccup mode, recovers automatically after fault condition is removed

23~30VDC

365.9K hrs min. MIL-HDBK-217F (25°C)

SD25C-24

150mVp-p max. (Note 2)

±1% (Note 3)

31.5~37.5V/10% load. Protection type: Hiccup mode, recovers automatically after fault condition is removed

23~30VDC

377.5K hrs min. MIL-HDBK-217F (25°C)

SD25 series

Input Specifications

Input Voltage Range

9.2~18VDC

DC Current

3.2A/12V

Minimum Load Requirement

0~5A

General Specifications

Isolation

1.5KVAC

Isolation Input-Ground

1.5KVAC

Isolation Output-Ground

0.5KVAC

Insulation Resistance

100M Ohms/500VDC

Efficiency

70% typ.

Safety Approvals

Design refer to LVD.

Physical Specifications

Size (mm)

99*97*36mm

Weight (g)

0.38Kg; 45pcs/17.8Kg/0.9CUFT

Notes

1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25 °C of ambient temperature.

2. Ripple and noise are measured at 20MHz of bandwidth by using a 12” twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.

3. Tolerance: includes set up tolerance, line regulation and load regulation.

4. The power supply is considered a component which will be installed into a final equipment. The final equpiment must be re-confirmed that it still meets EMC directives.

All specifications are typical at nominal input, full load, and 25°C 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.

Output Specifications

Output Voltage

5V

Output Amps

5A

Load Regulation

±0.5%

Line Regulation

±0.5%

Temperature Coefficient

±0.03%/°C (0~50°C)

Ripple and Noise

100mVp-p max. (Note 2)

Voltage Tolerance

±2% (Note 3)

Over Voltage Protection

5.75~6.75V/10% load. Protection type: Hiccup mode, recovers automatically after fault condition is removed

Short Circuit Protection

Over Current Protection

105~150% rated output power. Protection type: Fold back current limiting, recovers automatically after fault condition is removed

DC Voltage Adjust (typ.)

4.5~5.5VDC

Start Up, Rise Time

2.5s, 50ms at full load

Environmental Specifications

Operating Temperature

-20 to +60°C (refer to output derating curve)

Storage Temperature

-20 to +85°C

Working Humidity

20~90% RH non-condensing

Storage Humidity

10~95% RH

EMC

Compliance to EN61000-4-2, 3, 4, 5, 6, 8; EN50204, EN55024, heavy industry level, criteria A

EMI

Compliance to EN55022 (CISPR22) Class B

MTBF

365.6K hrs min. MIL-HDBK-217F (25°C)

Vibration

10~500Hz, 2G 10min./1 cycle, 60 min. each along X, Y, Z axes