Switching Power Supply LFA50F Model 50W Single Output
Brand :
COSEL
Caution
Product Description
Single substrate /worldwide input / compact input (50W Single output)
[Features]
· Miniaturization (footprint reduced by 38% compared with the past) and common mounting with LGA50A.
· Harmonic current regulations (IEC61000-3-2) conforming.
· Chassis cover, exclusive harness etc., full options SEMIF47 spec compliance.
INDEX
Features of LFA50F 50 W
External appearance of LFA50F
Block diagram of LFA50F
Dimensional drawing (Standard type)
Dimensional drawing (Chassis and cover type)
The mounting pins are compatible with those of the 100 V input products LGA series, so it can be replaced (50 / 75 / 100 / 150 / 240W)
Harmonic regulation compliant (Compliant with IEC61000-3-2)
Rated output power: 50 W model in the series with models from 10 to 300 W (10/15/30/50/75/100/150/240/300 W)
Circuit board starter / worldwide input / compact input (50 W single output)
External Shape
- Since the surface mount parts are mounted on the back side, please be careful about contact in consideration of vibration.
- Please use a spacer of 8 mm or more.
- There are 4 mounting holes in total.
- Point A and point B are temperature measurement points.
| Input/output connector | Compatible housing | Terminal | ||
|---|---|---|---|---|
| CN1 | 1-1123724-3 | 1-1123722-5 | Chain | 1123721-1 |
| Loose-piece | 1318912-1 | |||
| CN2 | 1-1123723-4 | 1-1123722-4 | Chain | 1123721-1 |
| Loose-piece | 1318912-1 | |||
- The connector made by Tyco Electronics is standard.
- Option: VH (manufacturer: JST) connector is available for J1.
Pin assignment
CN1
| Pin number | Input |
|---|---|
| 1 | AC (L) |
| 2 | — |
| 3 | AC (N) |
| 4 | — |
| 5 | FG |
CN2
| Pin number | Output |
|---|---|
| 1, 2 | - V |
| 3, 4 | +V |
- CN1 does not have No.2 and No.4 pins
- Please use CN2 at 5 A or less per pin.
- General tolerance: ±1
- Weight: 165 g max (With chassis and cover: 325 g max)
- Circuit board: Glass composite (CEM3)
- Chassis and cover are optional (Surface treatment: zinc plating)
- Chassis mounting hole tightening torque: 0.6 N⋅m (6.3 kgf⋅cm) max
Product specifications
| — | Item | LFA50F-3R3-Y | LFA50F-5 | LFA50F-12 | LFA50F-15 | LFA50F-24 | LFA50F-36 | LFA50F-48 | |
|---|---|---|---|---|---|---|---|---|---|
| Maximum output power [W] | 33 | 50 | 51.6 | 52.5 | 50.4 | 50.4 | 52.8 | ||
| DC output | 3.3 V 10 A | 5 V 10 A | 12 V 4.3 A | 15 V 3.5 A | 24 V 2.1 A | 36 V 1.4 A | 48 V 1.1 A | ||
| Input | Voltage [V] | AC85 to 264 1⌀ (Refer to the section 1.1 and section 3.2 of the instruction manual) *3 | |||||||
| Current [A] | ACIN 100 V | 0.47 typ (lo = 100%) | 0.67 typ (lo = 100%) | ||||||
| ACIN 200 V | 0.27 typ (lo = 100%) | 0.36 typ (lo = 100%) | |||||||
| Frequency [Hz] | 50/60 (47 to 63) | ||||||||
| Efficiency [%] | ACIN 100 V | 73.5 typ | 77.5 typ | 80.0 typ | 80.5 typ | 81.5 typ | 82.0 typ | 81.0 typ | |
| ACIN 200 V | 74.0 typ | 79.0 typ | 81.5 typ | 81.5 typ | 83.0 typ | 83.5 typ | 82.5 typ | ||
| Power rate (lo = 100%) | ACIN 100 V | 0.96 typ | 0.97 typ | ||||||
| ACIN 200 V | 0.83 typ | 0.90 typ | |||||||
| Inrush current [A] | ACIN 100 V | 15 typ (lo = 100%) (At cold start) (Normal temperature) | |||||||
| ACIN 200 V | 30 typ (lo = 100%) (At cold start) (Normal temperature) | ||||||||
| Leakage current [mA] | 0.40/0.75 max (According to each measurement method of 100 V/240 V AC Input 60 Hz, lo = 100%, IEC60950-1, the Electrical Appliances and Materials Safety Act) | ||||||||
| Output | Rated voltage [V] | 3.3 | 5 | 12 | 15 | 24 | 36 | 48 | |
| Rated current [A] | 10.0 | 10.0 | 4.3 | 3.5 | 2.1 | 1.4 | 1.1 | ||
| Static input fluctuation [mV]*4 | 20 max | 20 max | 48 max | 60 max | 96 max | 144 max | 192 max | ||
| Static load fluctuation [mV]*4 | 40 max | 40 max | 100 max | 120 max | 150 max | 240 max | 240 max | ||
| Ripple [mVp · p] | 0 to +50°C ※1 | 80 max | 80 max | 120 max | 120 max | 120 max | 150 max | 150 max | |
| -10 to 0°C ※1 | 140 max | 140 max | 160 max | 160 max | 160 max | 200 max | 200 max | ||
| Ripple noise [mVp · p] | 0 to +50°C ※1 | 120 max | 120 max | 150 max | 150 max | 150 max | 250 max | 250 max | |
| -10 to 0°C ※1 | 160 max | 160 max | 180 max | 180 max | 180 max | 300 max | 300 max | ||
| Ambient temperature fluctuation [mV] | 0 to +50°C | 50 max | 50 max | 120 max | 150 max | 240 max | 360 max | 480 max | |
| -10 to +50°C | 60 max | 60 max | 150 max | 180 max | 290 max | 450 max | 600 max | ||
| Drift over time [mV]*2 | 20 max | 20 max | 48 max | 60 max | 96 max | 144 max | 192 max | ||
| Startup Time [ms] | 350 typ (100 V AC Input, lo = 100%) | ||||||||
| Retention time [ms] | 20 typ (100 V AC Input, lo = 100%) | ||||||||
| Variable voltage range [V] | 2.85 to 3.63 | Internal fixed (Variable by option Y specification ±10%) | |||||||
| Voltage setting accuracy [V] | 3.30 to 3.40 | 4.90 to 5.30 | 11.50 to 12.50 | 14.40 to 15.60 | 23.00 to 25.00 | 34.50 to 37.50 | 46.00 to 50.00 | ||
| Functions included | Overcurrent protection | It works over 105% of rated current and automatically recovers | |||||||
| Overvoltage protection [V] | 4.00 to 5.25 | 5.75 to 7.00 | 13.80 to 16.80 | 17.25 to 21.00 | 27.60 to 33.60 | 41.40 to 50.40 | 55.20 to 67.20 | ||
| Operating indication | N/A | ||||||||
| Remote sensing | N/A | ||||||||
| Remote ON/OFF (RC) | N/A | ||||||||
| Dielectric strength | Input - output | 3,000 V AC 1-minute cutoff current = 10 mA, 500 V DC 50 MΩ min (Normal temperature, normal humidity) | |||||||
| Input - FG | 2,000 V AC 1-minute cutoff current = 10 mA, 500 V DC 50 MΩ min (Normal temperature, normal humidity) | ||||||||
| Output - FG | 500 V AC 1-minute cutoff current = 25 mA, 500 V DC 50 MΩ min (Normal temperature, normal humidity) | ||||||||
| Environment | Operating temperature/humidity | -10 to +70°C, 20 to 90%RH (No condensation) (Refer to the section 3.2 of the instruction manual) *3 | |||||||
| Storage temperature/humidity | -20 to +75°C, 20 to 90%RH (No condensation) | ||||||||
| Vibration | 10 to 55 Hz 19.6 m/s^2 (2 G) period 3 minutes X, Y, Z direction 1 hour each | ||||||||
| Impact | 196.1 m/s^2 (20 G) 11 ms X, Y, Z direction 1 time each | ||||||||
| Compatible standard | Safety Standard | UL60950-1, C-UL (CSA60950-1), EN60950-1, EN60065, EN50178-acquired, the Electrical Appliances and Materials Safety Act compliant | |||||||
| Conducted Emissions | FCC-B, VCCI-B, CISPR22-B, EN55011-B, EN55022-B compliant | ||||||||
| Harmonic current | IEC61000-3-2 compliant *5 | ||||||||
| Structure | External dimensions / weight | 50 × 26.5 × 132 mm (W × H × D) / 165 g max (With chassis and cover: 325 g max) | |||||||
| Cooling method | Natural air cooling (Refer to the section 3.1 and section 3.2 of the instruction manual) *3 | ||||||||
- *1It is a value on a measuring board with a 22 mF capacitor attached to the point at 150 mm from the output terminal. (By 20 MHz oscilloscope or ripple noise meter (KEISOKUGIKEN: RM-103 equivalent)). Since it has a built-in power reduction function during standby and the internal switch element is operated intermittently, the ripple and ripple noise specifications differ at a load factor of Io = 0 to 35%.
- *2 Drift over time is at ambient temperature of 25°C. It is a change during 30 minutes to 8 hours after applying the input voltage at the rated input/output.
- *3 Output derating is required. Please contact the manufacturer support center for use with DC.
- *4 When using multiple units, please contact the manufacturer support center as they may not comply with the regulations.
- *5 In case of dynamic fluctuation, the specifications may not be satisfied.
- *6 Please contact the manufacturer support center for other classes.
- * Please avoid using it in an overloaded state or outside the specification range, as it may damage the internal elements.
- * Parallel operation is not possible.
- * Derating is required if the chassis and cover are included.
- * Sound noise may be heard from the power supply when used for pulse load.
Lineup and features
Circuit board starter type
| — | Number of outputs | Series name | Release year | Main features | Safety Standard Environmentally friendly | |
|---|---|---|---|---|---|---|
| Circuit board starter type | Single | 1 | GHA | '13 | 3 × 5 inch external shape, compatible with medical electrical equipment, high power density with electric cooling function | UL and C-UL certified product / DEMKO certified product / CE marking compliant product |
| '15 | - SNF: Option with fan | |||||
| '16 | ||||||
| 1 | LMA | '14 | Compatible with medical electrical equipment, peak compatible | UL and C-UL certified product / DEMKO certified product / CE marking compliant product | ||
| 1 | LFP | '12 | Peak current compatible, LEP series compact version | UL and C-UL certified product / TUV certified product / CE marking compliant product | ||
| '13 | ||||||
| 1 | LEP | '02 | Peak current compatible | UL and C-UL certified product / TUV certified product / CE marking compliant product | ||
| 1 | LFA | '09 | Circuit board starter type general-purpose power supply, LEA series compact version | UL and C-UL certified product / TUV certified product / CE marking compliant product | ||
| '10 | ||||||
| 1 | SPLFA | '11 | LFA series (with chassis and cover) PSE-acquired product | The Electrical Appliances and Materials Safety Act certified product | ||
| 1 | LEA | '99 | Circuit board starter type general-purpose power supply | UL and C-UL certified product / TUV certified product / CE marking compliant product | ||
| 1 | LDA | '94 | Circuit board starter type general-purpose power supply | UL and C-UL certified product / CSA certified product / TUV certified product / CE marking compliant product | ||
| '95 | ||||||
| '97 | UL certified product / C-UL certified product / TUV certified product / CE marking compliant product | |||||
| 1 | LGA | '08 | Input 100 V AC system circuit board starter type General-purpose power supply | UL and C-UL certified product / TUV certified product / CE marking compliant product | ||
| Multi | 2 | LEB | '00 | LEA series 2-output type | UL and C-UL certified product / TUV certified product / CE marking compliant product | |
| 3 | LDC | '94 | LDA series 3-output type | UL and C-UL certified product / CSA certified product / TUV certified product / CE marking compliant product | ||
| '95 | ||||||
| 2 | LB | '92 | Circuit board starter type 2-output power supply, low price has been achieved by limiting performance and functions | — | ||
Development story
By using the same external shape and mounting as those of the 100 V AC (85 to 132 V) LGA series (output power 50 to 240 W), it is easy to replace even if the customer urgently requests 200 V AC compatibility.
In addition, by expanding the lineup with models from 10 to 307 W as a circuit board starter power supply, even if using multiple units, it is possible to arrange them in the same series.