1. General Description:

️· The CUI VOF-80 is an AC-DC power supply designed for various applications. It delivers regulated DC output voltages.
️· It appears to be a modular, compact design.

2. Input Specifications:

️· Input Voltage: 85 - 264 VAC (Universal) or 120 - 375 VDC
️· Input Frequency: 47 - 63 Hz
️· Input Current: 1.5A @ 110VAC, 0.8A @ 220VAC
️· Inrush Current: 25A @ 115VAC (cold start), 50A @ 220VAC (cold start)
️· Input Fuse: Built-in (non-user serviceable)

3. Output Specifications:

️· Regulation:
- Line Regulation: ±0.5% (at full load)
- Load Regulation: ±1% (from full load to 10% load)
️· Temperature Coefficient: ±0.05%/°C
️· Hold-up Time: 8ms @ 115VAC input
️· Adjustability: Output voltage can be adjusted using a trim pot (-10% to +5%)
️· Switching Frequency: 65 kHz

4. Protection Features:

️· Overvoltage Protection: 6.8V (for 3.3V and 5V models), 135% (for other models)
️· Overcurrent Protection: Automatically recovers at 105% of rated current
️· Short Circuit Protection: Continuous operation, but long-term short circuits may reduce reliability

5. Safety and Compliance:

️· Isolation Voltage: 3000 VAC (primary to secondary), 1500 VAC (primary to transformer core), 1500 VAC (primary to ground)
️· Isolation Resistance: 50 MΩ at 500 VDC
️· Certifications: TUV EN60950, CE, UL/cUL 60950-1
️· EMI/EMC: FCC Class B, EN55022 Class B
️· Leakage Current: 1.5 mA
️· RoHS Compliant: Yes
️· MTBF: 250,000 hours (according to MIL-HDBK-217F)

6. Environmental Conditions:

️· Operating Temperature: See derating curve (generally 0°C to 60°C)
️· Storage Temperature: -20°C to 85°C
️· Operating Humidity: Non-condensing (20% to 90%)
️· Storage Humidity: Non-condensing (20% to 95%)
️· Altitude:
- Operating: 10,000 ft (3,000 m)
- Storage: 30,000 ft (9,000 m)

7. Mechanical Specifications:

️· Dimensions: 4 x 2 x 1.40 inches (102 x 2 x 35.6 mm)
️· Weight: 0.2 kg
️· Cooling: Free air convection or forced air (derating may be required)

8. Connectors:

️· AC Input: Mates with Molex housing 09-50-7031 (2878 series crimp contact)
️· DC Output: Mates with Molex housing 09-50-7061 (2878 series crimp contact)

Important Notes:

️· Derating Curves: The datasheet references derating curves for operating temperature and voltage. Refer to those curves for specific limitations.
️· Revisions: The datasheet has undergone revisions; this summary is based on the 08/16/2012 version. Always use the latest revision.