LRS-100 100W Single Output Switching Power Supply

SPECIFICATION

OUTPUT

Model

LRS-100-3.3

LRS-100-5

LRS-100-12

LRS-100-15

LRS-100-24

LRS-100-36

LRS-100-48

DC Voltage

3.3V

5V

12V

15V

24V

36V

48V

Rated Current

20A

18A

8.5A

7A

4.5A

2.8A

2.3A

Current Range

0~20A

0~18A

0~8.5A

0~7A

0~4.5A

0~2.8A

0~2.3A

Rated Power

66W

90W

102W

105W

108W

100.8W

110.4W

Ripple&Noise

100mVp-p

100mVp-p

120mVp-p

120mVp-p

150mVp-p

200mVp-p

200mVp-p

VoltageAdj. Range

2.97~3.6V

4.5 ~ 5.5V

10.2~ 13.8V

13.5~18V

21.6~28.8V

32.4~39.6V

43.2~52.8V

Voltage Tolerance

±3.0%

±2.0%

±1.0%

±1.0%

±1.0%

±1.0%

±1.0%

Line Regulation

±0.5%

±0.5%

±0.5%

±0.5%

±0.5%

±0.5%

±0.5%

Load Regulation

±2.0%

±1.0%

±0.5%

±0.5%

±0.5%

±0.5%

±0.5%

Setup,Rise Time

500ms, 30ms/230VAC   500ms, 30ms/115VAC at full load

Hold Up Time

55ms/230VAC   10ms/115VAC at full load

INPUT

Voltage Range

85 ~ 264VAC    120 ~ 373VDC

Frequency Range

47 ~ 63Hz

Efficiency

84.5%

86%

88%

88.5%

90%

90.5%

91%

AC Current

1.9A/115VAC  1.2A/230VAC

Inrush Current

Cold start 50A/230VAC

Leakage Current

<0.75mA / 240VAC

PROTECTION

Over Load

110 ~ 150% rated output power

Protection type: Hiccup mode, recovers automatically after fault condition is removed

Over Voltage

3.8~4.45V

5.75~6.75V

13.8~16.2V

18.75~21.75V

28.8~33.6V

41.4~48.6V

55.2~64.8V

Protection type: shut down o/p voltage, re-power on to recover

ENVIRONMENT

Working Temp.

-30 ~ +70℃ (Refer to “derating curve”)

Working Humidity

20 ~ 90% RH non-condensing

StorageTemp., Humidity

-40 ~ +85℃, 10 ~ 95% RH

Temp. Coefficient

±0.03%/℃ (0 ~ 50℃)

Vibration

10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes

SAFETY &EMC

Safety Standards

UL60950-1, TUV EN60950-1, EN60335-1/-2-16, CCC GB4943 approved

Withstand Voltage

I/P-O/P:3.75KVAC   I/P-FG:2KVAC  O/P-FG:1.25KVAC

Isolation Resistance

I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃ / 70% RH

EMC Emission

Compliance to EN55022(CISPR22), GB9254 CLASS B, EN55014 EN 61000-3-2,-3

EMC Immunity

Compliance to EN61000-4-2,3,4,5,6,8,11, EN61000-6-2(EN50082-2), heavy industry level, criteria A

OTHERS

Dimension

129*97*30mm (L*W*H)

Weight

0.34Kg

Packing

40pcs/carton/14.6kg/0.92CUFT

NOTE

1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.

2. Ripple & noise are measured at 20MHz of bandwidth by using a 12” twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.

3. Tolerance: includes set up tolerance, line regulation and load regulation.

4. Line regulation is measured from low line to high line at rated load.

5. Load regulation is measured from 0% to 100% rated load.

6. The power supply is considered a component which will be installed into a final equipment. The final equipment must be re-confirmed that it still meetsEMC directives.

7. Length of set up time is measured at cold first start. Turning ON/OFF the power supply very quickly may lead to increase of the set up time.

The LRS-100 includes built-in protection functions to help protect the power supply and connected equipment under abnormal operating conditions.

Overload Protection

The overload protection operates at:

110–150% of rated output power

Protection Type: Hiccup mode, with automatic recovery after the fault condition is removed.

Over-Voltage Protection

The over-voltage protection threshold varies according to the selected output model.

Protection Type: Output voltage shuts down. Re-power on is required for recovery.

Short-Circuit Protection

The LRS-100 provides short-circuit protection as part of its built-in protection system.

Surge Input Capability

The LRS-100 can withstand a 300VAC surge input for 5 seconds under the specified conditions.

LRS-100 Applications

The LRS-100 is designed as a single-output switching power supply for electrical and electronic equipment requiring regulated DC power.

Its multiple output voltage options and wide AC input range allow the appropriate model to be selected according to the DC voltage and current requirements of the final equipment.

Typical DC Power Requirements

3.3V DC

LRS-100-3.3 provides up to 20A output current and 66W rated output power.

5V DC

LRS-100-5 provides up to 18A output current and 90W rated output power.

12V DC

LRS-100-12 provides 12V / 8.5A / 102W output.

24V DC

LRS-100-24 provides 24V / 4.5A / 108W output.

48V DC

LRS-100-48 provides 48V / 2.3A / 110.4W output.

LRS-100 Dimensions and Installation

The LRS-100 enclosure measures:

129 × 97 × 30 mm (L × W × H)

The product weight is approximately:

0.34 kg

Installation Notes

The LRS-100 is designed as a component for installation into final equipment.

When installing the power supply:

• Ensure that the input voltage is within the specified range.
• Select the correct output voltage model.
• Do not exceed the rated output current and power.
• Provide suitable ventilation for free-air convection cooling.
• Follow applicable electrical installation requirements.
• Re-confirm the EMC performance of the final equipment after installation.

The original specification specifically states that the power supply is considered a component installed into final equipment and that the final equipment must be re-confirmed for EMC requirements. 

LRS-100 Frequently Asked Questions

What is the LRS-100?

The LRS-100 is a single-output AC-DC switching power supply series with multiple DC output voltage options.

What input voltage does the LRS-100 support?

The LRS-100 supports:

85–264VAC

and:

120–373VDC

input.

What output voltages are available for the LRS-100?

The series provides:

3.3V / 5V / 12V / 15V / 24V / 36V / 48V DC

output options.

Is the LRS-100 a 100W power supply?

The LRS-100 is a 100W-class product series, but the actual rated output power varies by model from 66W to 110.4W.

For example, the LRS-100-24 is rated at 108W, while the LRS-100-48 is rated at 110.4W.

Is the LRS-100 fanless?

The specification states that the LRS-100 uses free-air convection cooling.

What is the efficiency of the LRS-100?

Typical efficiency varies by output model from 84.5% to 91%.

What protection functions does the LRS-100 provide?

The LRS-100 provides:

• Short-circuit protection
• Overload protection
• Over-voltage protection

What is the overload protection range?

The overload protection operates at approximately:

110–150% of rated output power

and uses hiccup mode with automatic recovery after the fault condition is removed.

What is the operating temperature of the LRS-100?

The specified operating temperature range is:

-30°C to +70°C

What are the dimensions of the LRS-100?

The LRS-100 measures:

129 × 97 × 30 mm

What is the weight of the LRS-100?

The product weight is approximately:

0.34 kg

Which LRS-100 model should I choose for 24V DC equipment?

For equipment requiring 24V DC, the recommended model is:

LRS-100-24

It provides:

24V / 4.5A / 108W

Which LRS-100 model provides 48V output?

The LRS-100-48 provides:

48V / 2.3A / 110.4W

Does the LRS-100 support OEM/ODM?

LEYU provides switching power supply products and supports customer technical and OEM/ODM requirements. Please contact LEYU for specific requirements.