AC/DC Power Supplies
Cincon LFM550M Series 550W Medical AC/DC Power Supply
The Cincon LFM550M Series is a 550W medical AC-DC power supply with active PFC, efficiency up to 94%, and a compact 25.4mm low-profile package. The series supports Class I and Class II installations and is approved to ANSI/AAMI ES 60601-1, IEC 60601-1 and EN 60601-1 Ed. 3.2 for 2 MOPP, as well as IEC/EN/UL 62368-1 Ed. 3.0, and meets IEC/EN 60335...
Read MoreThe Cincon LFM550M Series is a 550W medical AC-DC power supply with active PFC, efficiency up to 94%, and a compact 25.4mm low-profile package. The series supports Class I and Class II installations and is approved to ANSI/AAMI ES 60601-1, IEC 60601-1 and EN 60601-1 Ed. 3.2 for 2 MOPP, as well as IEC/EN/UL 62368-1 Ed. 3.0, and meets IEC/EN 60335-1.
The LFM550M Series is available in baseplate and covered versions with single outputs from 12V to 54V. It supports forced-air cooling, baseplate conduction cooling, and external conduction plate cooling, making it a strong option where high output power, medical approvals and compact packaging are required.
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Features
- Wide Universal AC Input Range: 85–264Vac input enabling global operation across a wide range of AC power systems.
- Multiple Output Voltage Options: Available in 12V, 15V, 24V, 28V, 30V, 36V, 48V and 54V single output models for flexible system design.
- High Output Current Capability: Provides up to 45.83A output current depending on model, supporting high-power medical equipment.
- High Power Density 550W Design: Delivers up to 550W output power in a compact 25.4mm low-profile form factor.
- Safety: IEC/EN/UL 62368-1 Ed.3.0 | Meets IEC/EN 60335-1 | ANSI/AAMI ES 60601-1, IEC 60601-1, EN 60601-1 Ed. 3.2, Class I, Class II
- High Efficiency: Up to 94% (230Vac, full load, 25°C)
- Active PFC: Power Factor 0.96–0.98 @ 230Vac full load
- Output Voltage Adjustment Range: ±5% of nominal (±0 to +5% for 28V model)
- OVP: Latch off (AC recycle to reset) | OCP: 120–160%, auto-recovery
- SCP: Continuous, auto-recovery | OTP: Auto-recovery
- Load Regulation: ±0.5% (10–100% load) | Line Regulation: ±0.3%
- Cooling: Forced Air (21.9CFM) | Baseplate Conduction | External Baseplate (38.1×38.1cm)
- Operating Temp: −40°C to +80°C | Operating Case Temp: −40°C to +90°C | Altitude: 5000m
- MTBF: 400,000h (MIL-HDBK-217F) | 1,300,000h (Telcordia SR332)
- Lifetime: 150,000h fan cooling / 97,000h conduction @ 75% Load, 40°C
- EMC Immunity: EN 60601-1-2, IEC/EN 61000-4-2/3/4/5/6/8/11 Ed.4.1
- EMC Emission: EN 55011 Class B, EN 55032, FCC Part 15 & 18 Class B
Specifications
| ABSOLUTE MAXIMUM RATINGS | ||||||
|---|---|---|---|---|---|---|
| Parameter | Notes and Conditions | Device | Min. | Typ. | Max. | Units |
| Input Voltage | Safety approvals only to the AC input | All | 85 115 |
264 370 |
Vac Vdc |
|
| Operating Temperature | See derating curve | All | -40 | 80 | ℃ | |
| Operating Case Temperature | At the center of base plate (Tc = Case temperature) |
All | -40 | 90 | ℃ | |
| Storage Temperature | All | -40 | 90 | ℃ | ||
| Operating Altitude | All | 5000 | m |
| INPUT CHARACTERISTICS | ||||||
|---|---|---|---|---|---|---|
| Parameter | Notes and Conditions | Device | Min. | Typ. | Max. | Units |
| Operating Input Voltage | | All | 100 | | 240 | Vac |
| Input Frequency Range | | All | 47 | | 63 | Hz |
| Maximum Input Current | 100% Load, Vin=100Vac | All | | | 6.3 | A |
| Leakage Current | Contact leakage current Earth leakage current |
All | | | 100 300 |
uA |
| Inrush Current | Vin=240Vac, Cold Start @25℃ | All | | | 45 | A |
| Power Factor | 230Vac @ Full load | All | 0.96 | 0.98 | | |
| OUTPUT CHARACTERISTICS | ||||||
|---|---|---|---|---|---|---|
| Parameter | Notes and Conditions | Device | Min. | Typ. | Max. | Units |
| Output Voltage Set Point | Vin=Nominal Vin, Io=Io max., Tc=25℃ | LFM550M120 LFM550M150 LFM550M240 LFM550M280 LFM550M300 LFM550M360 LFM550M480 LFM550M540 |
11.88 14.85 23.76 27.72 29.7 35.64 47.52 53.46 |
12 15 24 28 30 36 48 54 |
12.12 15.15 24.24 28.28 30.3 36.36 48.48 54.54 |
Vdc |
| Operating Output Current Range | Vin=85Vac~264Vac, see derating curve | LFM550M120 LFM550M150 LFM550M240 LFM550M280 LFM550M300 LFM550M360 LFM550M480 LFM550M540 |
0 0 0 0 0 0 0 0 |
45.83 36.66 22.91 19.64 18.33 15.27 11.45 10.18 |
A | |
| Holdup Time | Vin=115Vac | All | 8 | 12 | ms | |
| Output Voltage Regulation | ||||||
| Load Regulation | 10% Load to full load | All | ±0.5 | % | ||
| Line Regulation | Vin=High line to low line | All | ±0.3 | % | ||
| Output Voltage Adjustment | Po≦max. rated power, Io≦Io max. | LFM550M280 Others |
0 -5 |
+5 +5 |
% | |
| Over Voltage Protection | Latch off (AC recycle to reset) | LFM550M120 LFM550M150 LFM550M240 LFM550M280 LFM550M300 LFM550M360 LFM550M480 LFM550M540 |
16 20 32 35 35 45 55 60 |
Vdc | ||
| Over Current Protection | Auto recovery (output is rated load) | All | 120 | 140 | 160 | % |
| Short Circuit Protection | Auto recovery | All | ||||
| Over Temperature Protection | Auto recovery | All | ||||
| Output Ripple and Noise | 1. Add a 0.1uF ceramic capacitor and a 10uF aluminum electrolytic capacitor to output 2. Oscilloscope is 20MHz band width 3. Ambient Temperature=25℃ |
LFM550M120 LFM550M150 LFM550M240 LFM550M280 LFM550M300 LFM550M360 LFM550M480 LFM550M540 |
120 150 200 200 200 200 200 200 |
mV | ||
| Load Capacitance | 1. Vin=115Vac and 230Vac 2. Output is max. load 3. Ambient temperature=25℃ |
LFM550M120 LFM550M150 LFM550M240 LFM550M280 LFM550M300 LFM550M360 LFM550M480 LFM550M540 |
27200 22400 14100 11600 10600 9020 7200 6000 |
uF | ||
| Efficiency | 1. Input Voltage is 230Vac 2. Output is rated load 3. Ambient temperature=25℃ |
LFM550M120 LFM550M150 LFM550M240 LFM550M280 LFM550M300 LFM550M360 LFM550M480 LFM550M540 |
92 93 93 93 93 94 94 94 |
% | ||
| ISOLATION CHARACTERISTICS | ||||||
|---|---|---|---|---|---|---|
| Parameter | Notes and Conditions | Device | Min. | Typ. | Max. | Units |
| Input to Output | 1 Minute (without dielectric breakdown) | All | 4250 | Vac | ||
| Input to Earth (Ground) | 1 Minute (without dielectric breakdown) | All | 2000 | Vac | ||
| Output to Earth (Ground) | 1 Minute (without dielectric breakdown) | All | 2000 | Vac | ||
| Isolation Resistance | Input to output | All | 100 | MΩ |
| FEATURE CHARACTERISTICS | ||||||
|---|---|---|---|---|---|---|
| Parameter | Notes and Conditions | Device | Min. | Typ. | Max. | Units |
| Switching Frequency | All | 65 | kHz |
| GENERAL SPECIFICATIONS | ||||||
|---|---|---|---|---|---|---|
| Parameter | Notes and Conditions | Device | Min. | Typ. | Max. | Units |
| MTBF | Io=100%; Ta=25℃ per MIL-HDBK-217F Io=100%; Ta=25℃ per Telcordia SR332 |
All | 400 1300 |
| | k hours |
| Life Time (Detail refer to Application Note) | Conduction cooling @75% Load, 40℃ Fan cooling @75% Load, 40℃ |
All | | 97 150 |
| k hours |
| Humidity | Non-condensing | All | | 93 | % RH | |
| Shock | Meet MIL-STD-810F Table 516.5, Table 516.5-I 10ms, each axis 3 times (±X, ±Y, ±Z axis) | All | 75 | | g | |
| Vibration | Meet MIL-STD-810F Table 514.5C-VIII, 15~2000Hz, X, Y, Z axis, 1 hour (each axis), total 3 hrs. | All | 4 | | g | |
| Weight | Baseplate versions Covered versions |
LFM550MXXXB LFM550MXXXC |
| 380 535 |
| grams |
| Dimensions | Baseplate versions Covered versions |
LFM550MXXXB LFM550MXXXC |
5.00x3.00x1.00 Inches (127.0x76.2x25.4 mm) 5.09x3.29x1.00 Inches (129.4x83.5x25.4 mm) |
|||
| Safety |
Class I, Class II Class I, IEC/EN/UL 62368-1 |
Ed. 3.2 |
||||
| EMC Emission | EN 55011 Class B, IEC/EN 61000-3-2, EN 61000-3-3, 47 CFR FCC Part 18 EN 55032, EN 61000-6-4, EN 61204-3, EN 61000-3-2, EN 61000-3-3, 47 CFR FCC Part 15 |
|||||
| Conducted Disturbance | EN 55011, EN 55032, 47 CFR FCC Part 18 & Part 15 |
Class B | ||||
| Radiated Disturbance | EN 55011, 47 CFR FCC Part 18 (Class II only meets Class A) EN 55032, 47 CFR FCC Part 15 |
Class B | ||||
| Harmonic Current Emissions | IEC/EN 61000-3-2 | Class A, C, D |
||||
| Voltage Fluctuations & Flicker | EN 61000-3-3 | Criterion A | ||||
| EMC Immunity | EN 60601-1-2, IEC/EN 61000-4-2, 3, 4, 5, 6, 8, 11 EN 55035, EN 61000-6-2, EN 61204-3 |
Ed. 4.1 | ||||
| Electrostatic Discharge (ESD) | IEC 61000-4-2, Level 4: Air Discharge: ±15kV, Contact Discharge: ±8kV | Criterion A | ||||
| Radio-Frequency, Continuous Radiated Disturbance | IEC/EN 61000-4-3, Level 3: 80~2700MHz, 10V/m | Criterion A | ||||
| Electrical Fast Transient (EFT) | EN 61000-4-4, Level 3: ±2KV | Criterion A | ||||
| Surge | EN 61000-4-5, Level 4: L-N: ±2kV, L-E (Ground): ±4kV | Criterion A | ||||
| Conducted Disturbances, Induced by RF Fields | EN 61000-4-6, Level 3: 0.15~80MHz, 10V | Criterion A | ||||
| Power Frequency Magnetic Field | EN 61000-4-8, Level 4: 30A/m | Criterion A | ||||
| Voltage Dips | IEC/EN 61000-4-11, Dip: 30% Reduction IEC/EN 61000-4-11, Dip >95% Reduction |
Criterion A | ||||
| Voltage Interruptions | IEC/EN 61000-4-11, >95% Reduction | Criterion B | ||||
| Application Note Link | LFM550M Series App Notes | |||||
Technical Drawings
Warranty & Returns
Warranty periods vary by product. Please refer to the Powerbox Warranty Policy for the applicable coverage period against manufacturing defects from date of purchase. For returns and RMA requests, please visit our RMA support page or contact our support team directly.
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