Switching Power Supply LFA50F Model 50W Single Output
Brand :
COSEL
Caution
- [Information for recommended related products]
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Sales of products currently in stock may be temporarily suspended in the future depending on their availability.
Products for which orders have been suspended are not expected to be restocked anytime soon.
Product Description
Wide input voltage, circuit board starter type, a wide variety of variations with models from 10 W to 300 W, 50 W model.
[Features]
·Mounting compatibility with LGA50A
·Harmonic current regulation compliant (Compliant with IEC61000-3-2)
·Compatible with SEMI F47 standard
[Applications]
·It can be used for various general-purpose devices
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.