FSP 250W Medical FLEX ATX Power Supplies

Features

• Design complies with IEC 60601-1 and IEC 60950-1
• 80PLUS BRONZE certificate
• +5Vsb less than 1W @ standby mode (PS_ON high)

Safety Standard Approvals

Approvals include: 80 PLUS BRONZE, CE, TÜV Rheinland Certified (E178020).

Description

This series of medical AC-DC power supplies offers 220W and 250W power with ATX outputs. It features a 1U standard size (190 x 82 x 40.5 mm) and can be widely fitted in different chassis. The design emphasizes high efficiency with 80PLUS efficiency.

Input Specifications

Input voltage: 90-264 VAC

Input frequency: 47-63 Hz

Input current:

• FSP250-60MPC: 3.2 A (rms) @ 115Vac, 1.7 A (rms) @ 230Vac
• FSP220-60MPC: 3.0 A (rms) @ 115Vac, 1.5 A (rms) @ 230Vac

Earth leakage current: 300 μA max. @ 264 VAC, 63 Hz

Output Specifications

Output voltage/current: See rating chart.

Maximum output power: See rating chart.

Ripple and noise: See rating chart.

Protection

• OVP: +3.3V, +5V & +12V, Latch off
• OCP, Shorted: +3.3V, +5V & +12V Latch off
• +5Vsb, -12V, -5V: Auto-recovery
• OTP: Rated 150% Latch off

Environmental Specifications

Operating temperature: 0°C to +50°C

Storage temperature: -20°C to +80°C

Relative humidity: 10% to 95% non-condensing

Derating: Derate from 100% at +50°C linearly to 50% at +70°C

General Specifications

Power factor: 0.9 minimum

Efficiency: 80PLUS BRONZE (82%-85%-82%)

Hold-up time: 14 mS minimum at 115VAC

Line regulation: ±1% maximum at full load

Inrush current: No damage to PSU (Ip2 *t < 20)

Withstand voltage: 4000 VAC from input to output (2 MOPP), 1500 VAC from input to ground (1 MOPP)

MTBF: 100,000 hours at full load & 25°C ambient, calculated per MIL-HDBK-217

EMC Performance (IEC60601-1-2)

• EN55011/ EN55022: Class B conducted, Class B radiated
• FCC / VCCI: Class B conducted, Class B radiated
• EN61000-3-2: Harmonic distortion, Class D
• EN61000-3-3: Line flicker
• EN61000-4-2: ESD, ±8 KV air and ±6 KV contact
• EN61000-4-3: Radiated immunity, 10 V/m
• EN61000-4-4: Fast transient/burst, ±2 KV
• EN61000-4-5: Surge, ±1 KV diff., ±2 KV com.
• EN61000-4-6: Conducted immunity, 10 Vrms
• EN61000-4-8: Magnetic field immunity, 30 A/m
• EN61000-4-11: Voltage dip immunity, 30% reduction for 500 ms, 60% reduction for 100 ms, >95% reduction for 10 ms

Output Voltage/Current Rating Chart

NOTES: Voltage regulation will be over ±10% at +3.3V, +5V, +12V if load is less than the minimum load mentioned in the table.

Interface Signals

Interface Signals Diagram Description: This diagram illustrates the timing sequence for the PS_ON (Power Supply On) and P.G. (Power Good) signals. The PS_ON signal, when high, initiates the power-up sequence. The P.G. signal indicates that the power supply outputs are stable and ready. Key timing parameters are defined:

• T1: RISETIME: The time for the PS_ON signal to rise from low to high, specified as less than 20 ms.
• T2: POWER GOOD DELAY TIME: The delay from when the PS_ON signal is high and outputs are stable until the P.G. signal becomes active, specified as 100 ms to 500 ms.
• T3: POWER FAIL DELAY TIME: The time from when the PS_ON signal goes low (or power fails) until the output voltage drops significantly, specified as greater than 1 ms.

Mechanical Specifications

Dimensions: The power supply unit has a standard FLEX ATX form factor with dimensions of 190.00 mm (Length) ±0.50 mm x 82.00 mm (Width) ±0.30 mm x 40.50 mm (Height) ±0.30 mm.

Fan: Equipped with a 40x15 fan for airflow.

Airflow: Airflow is directed across the unit, typically from front to back.

Mounting: Features mounting points, including five #6-32 UNC threaded holes on the front panel for securing the unit.

Connector Layout: The rear panel includes the main AC input and various DC output connectors.

Output Connectors

Weight

Weight: 1.57 Kg