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Mean Well LDC-55B Linear LED Driver 55W 500~1600mA Adjustable Outpu...
Overview
LDC-55B is the model of this series: rated power 55W, typical efficiency 90%(230VAC@Full load).
LDC-55 series is a 55W AC/DC LED driver featuring the Constant Power mode output. LDC-55 operates from 180~295VAC and output current can be adjust between 500mA to 1600mA. Thanks to the efficiency up to 90%, with the fanless design, the entire series is able to operate -25℃~+80℃ case temperature under free air convection.LDC-55 is equipped with various function options, such as dimming methodologies, so as to provide the optimal design flexibility for LED lighting system.
Features
- Constant Power mode output
- Metal housing design
- Full Power at 70~100% max Current
- Built-in active PFC function
- Flicker Free design
- Class 2 power supply
- No load / Standby power consumption <0.5W
- Output current level pre-settable
- Function options: 3 in 1 dimming (dim-to-off); DALI interface, push dimming
- Typical lifetime>50000 hours
- SELV and Isolated
- 5 years warranty
Specifications
OUTPUT
- OUTPUT CURRENT REGION
- 500 ~ 1600mA(1050mA default)
- RATED POWERNote.2
- 55W
- CONSTANT CURRENT REGIONNote.2
- 27 ~ 56V
- FULL POWER CURRENT RANGE
- 980 ~ 1600mA
- OPEN CIRCUIT VOLTAGE(max.)
- 60V
- LOW FREQUENCY CURRENT RIPPLE
- 3.0% max. @rated current
- CURRENT TOLERANCE
- ±5.0%
- SET UP TIMENote.4
- 500ms/230VAC
INPUT
- VOLTAGE RANGENote.3
- 180 ~ 295VAC (Please refer to "STATIC CHARACTERISTIC" section)
- FREQUENCY RANGE
- 47 ~ 63Hz
- POWER FACTOR (Typ.)
- PF≧0.95/230VAC@load≧50%; PF≧0.9/277VAC@load≧75% (Please refer to "POWER FACTOR (PF) CHARACTERISTIC" section)
- TOTAL HARMONIC DISTORTION
- THD< 10%(@load≧50%/230VAC; @load≧75%/277VAC) (Please refer to “TOTAL HARMONIC DISTORTION(THD)” section)
- EFFICIENCY (Typ.)Note.6
- 90%(230VAC@Full load)
- AC CURRENT (Typ.)
- 0.35A / 230VAC 0.25A / 277VAC
- INRUSH CURRENT(Typ.)
- COLD START 30A(twidth=300μs measured at 50% Ipeak)/230VAC; Per NEMA 410
- MAX. No. of PSUs on 16A CIRCUIT BREAKER
- 17 units (circuit breaker of type B) / 29 units (circuit breaker of type C) at 230VAC
- LEAKAGE CURRENT
- <0.75mA / 277VAC
PROTECTION
- SHORT CIRCUIT
- Hiccup mode or constant current limiting ,recovers automatically after fault condition is removed
- OVER VOLTAGE
- 61 ~ 80V Shut down o/p voltage with auto-recovery or re-power on to recovery
- OVER TEMPERATURE
- Shut down o/p voltage, with auto-recovery
FUNCTION
- DIMMING
- Please refer to“DIMMING OPERATION”section
- TEMP. COMPENSATION
- By external NTC, please refer to“TEMPERATURE COMPENSATION OPERATION”section
ENVIRONMENT
- WORKING TEMP.
- Tcase=-25 ~ +80℃ (Please refer to “ OUTPUT LOAD vs TEMPERATURE” section)
- MAX. CASE TEMP.
- Tcase=+80℃
- WORKING HUMIDITY
- 20 ~ 95% RH non-condensing
- STORAGE TEMP., HUMIDITY
- -40 ~ +80℃, 10 ~ 95% RH
- TEMP. COEFFICIENT
- ±0.03%/℃ (0 ~ 60℃)
- VIBRATION
- 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes
SAFETY & EMC
- SAFETY STANDARDSNote.5
- Ul8750, CSA C22.2 No. 250.13-12; ENEC BS EN/EN61347-1, BS EN/EN61347-2-13, AS/NZS 61347.1, AS/NZS IEC 61347.2.13; BS EN/EN62384; GB/T19510.1,GB/T19510.213, EAC TP TC 004, BIS IS15885 approved
- DALI STANDARDS
- Compliance to IEC62386-101.102.207 for DA-Type only
- WITHSTAND VOLTAGE
- I/P-O/P:3.75KVAC I/P-FG:2.0KVAC O/P-FG:1.5KVAC
- ISOLATION RESISTANCE
- I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
- EMC EMISSIONNote.5
- Compliance to BS EN/EN55015,BS EN/EN61000-3-2 Class C (@load≧50%) ; BS EN/EN61000-3-3;GB/T17743, GB17625.1,EAC TP TC 020
- EMC IMMUNITY
- Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11; BS EN/EN61547, light industry level(surge immunity:Line-Earth: 2KV,Line-Line:1KV),EAC TP TC 020
OTHERS
- MTBF
- 2521K hrs min. Telcordia SR-332 (Bellcore) 226.1Khrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 320*30*21mm (L*W*H)
- PACKING
- 0.255Kg;48pcs/13.24Kg/0.92CUFT
Test conditions and notes10
- 1. All parameters NOT specially mentioned are measured at 230VAC input, rated current and 25℃ of ambient temperature.
- 2. Please refer to " OUTPUT CURRENT SETTING ".
- 3. De-rating may be needed under low input voltages. Please refer to “STATIC CHARACTERISTIC” sections for details.
- 4. Length of set up time is measured at first cold start. Turning ON/OFF the power supply may lead to increase of the set up time.
- 5. The driver is considered as a component that will be operated in combination with final equipment. Since EMC performance will be affected by the complete installation, the final equipment manufacturers must re-qualify EMC Directive on the complete installation again. (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf)
- 6. The DA type power supply is less efficient than the typical efficiency in specification by 2%.
- 7. This series meets the typical life expectancy of >50000 hours of operation when Tcase, particularly tc point (or TMP, per DLC), is about 70℃ or less.
- 8. Please refer to the warranty statement on MEAN WELL's website at http://www.meanwell.com.
- 9. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).
- 10. To fulfill requirements of the latest ErP regulation for lighting fixtures, this LED power supply can only be used behind a switch without permanently connected to the mains.
Technical drawings
Typical applications
- LED panel lighting
- Indoor LED lighting
- Linear LED lighting
Downloads
Certificates10
Test reports1
Catalogues1
FAQ
Can the LDC-55B be used for dimmable higher-power LED downlights?
Yes, if the fixture is built for constant current operation at a current within the 500-1600mA adjustable range and the LED load is within the 27-56V constant current range. This is a 55W driver with 3-in-1 dimming (0-10VDC, 10V PWM or resistance), meant for LED loads that need regulated current instead of constant voltage input.
Is the LDC-55B suitable for dimmable signage modules?
It can be suitable for signage modules designed as a constant current load within 27-56V at a current set between 500 and 1600mA. It should not be selected for signage products that expect a constant voltage source, because this model regulates output current.
Can I use the LDC-55B on a small LED array where dimming is needed?
Yes, if the array is specified for constant current drive within the 500-1600mA range and its combined forward voltage stays within the 27-56V CC range. Dimming is applied between DIM+ and DIM- by 0-10VDC, 10V PWM or resistance, down to a minimum level of about 8%.
How do I check LED compatibility with the LDC-55B?
The LED load needs to be a constant current design rated for a current within 500-1600mA (1050mA default), with a total forward voltage inside the 27-56V range. The number of LEDs depends on the forward voltage of each LED, so compatibility should be evaluated from the full LED load voltage rather than a fixed LED count.
What operating conditions is the LDC-55B rated for?
The listed working temperature is Tcase -25°C to +80°C (see the output load vs temperature derating curve), with 20-95% RH non-condensing humidity. No IP rating is shown in the provided specs, so wet-location or exposed-environment use should be evaluated at the fixture or enclosure level.
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