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Overview
LCM-25DA is the model of this series: rated power 18.9W (350mA); 25.2W (500mA ~ 1050mA), typical efficiency 86%.
LCM-25DA series is a 25W AC/DC constant current mode output LED driver featuring the multiple levels selectable by dip switch and the DALI interface with the compliance to IEC62386. LCM-25DA operates from 180~277VAC and offers different current levels ranging between 350mA and 1050mA. Thanks to the efficiency up to 86%, with the fanless design, the entire series is able to operate for -30℃~+85℃ case temperature under free air convection. In addition, LCM-25DA is equipped with push dimming and synchronization functions, so as to provide the optimal design flexibility for LED lighting system.
Features
- Constant current mode output with multiple levels selectable by dip switch
- Emergency lighting application is available according to IEC61347-2-13
- Built-in active PFC function and class II design
- Standby power consumption <0.5W
- Functions: DALI interface(logarithm or linear dimming curve selectable), push dimming synchronization up to 10units
- 3 years warranty
Specifications
OUTPUT
- CURRENT LEVEL
- Current level selectable via DIP switch, please refer to "DIP SWITCH TABLE" section: 350mA / 500mA / 600mA / 700mA(default) / 900mA / 1050mA
- RATED POWER
- 18.9W (350mA); 25.2W (500mA ~ 1050mA)
- DC VOLTAGE RANGE
- 6 ~ 54V (350mA); 6 ~ 50V (500mA); 6 ~ 42V (600mA); 6 ~ 36V (700mA); 6 ~ 28V (900mA); 6 ~ 24V (1050mA)
- OPEN CIRCUIT VOLTAGE (max.)
- 59V (350mA ~ 600mA); 41V (700mA ~ 1050mA)
- CURRENT RIPPLE
- 5.0% max. @rated current
- CURRENT TOLERANCE
- ±5%
- SETUP TIMENote.3 Note.8
- 500ms / 230VAC
INPUT
- VOLTAGE RANGENote.2
- 180 ~ 277VAC 254 ~ 380VDC(254~375VDC for DA2-Type) (Please refer to "STATIC CHARACTERISTIC" section)
- FREQUENCY RANGE
- 47 ~ 63Hz
- POWER FACTOR (Typ.)
- PF≧0.94/230VAC, PF≧0.91/277VAC@ full load (Please refer to "POWER FACTOR (PF) CHARACTERISTIC" section)
- TOTAL HARMONIC DISTORTION
- THD< 20%( @load≧50%/230VAC; @load≧75%/277VAC ) (Please refer to “TOTAL HARMONIC DISTORTION(THD)” section)
- EFFICIENCY (Typ.)Note.4
- 86%
- AC CURRENT (Typ.)
- 0.17A/230VAC / 0.15A/277VAC
- INRUSH CURRENT (Typ.)
- COLD START 20A(twidth=260μs measured at 50% Ipeak) at 230VAC; Per NEMA 410
- MAX. No. of PSUs on 16A CIRCUIT BREAKER
- 26 units (circuit breaker of type B) / 44 units (circuit breaker of type C) at 230VAC
- LEAKAGE CURRENT
- <0.5mA / 240VAC
- STANDBY POWER CONSUMPTIONNote.5
- <0.5W
PROTECTION
- SHORT CIRCUIT
- Constant current limiting, recovers automatically after fault condition is removed
- OVER TEMPERATURE
- Shut down o/p voltage, recovers automatically after temperature goes down
FUNCTION
- DIMMING
- Please refer to "DIMMING OPERATION" section
- SYNCHRONIZATION
- Please refer to "SYNCHRONIZATION OPERATION” section
ENVIRONMENT
- WORKING TEMP.
- Tcase=-30 ~ +85℃ (Please refer to “ OUTPUT LOAD vs TEMPERATURE” section)
- MAX. CASE TEMP.
- Tcase=+85℃
- WORKING HUMIDITY
- 20 ~ 90% RH non-condensing
- STORAGE TEMP., HUMIDITY
- -40 ~ +80℃, 10 ~ 95% RH
- TEMP. COEFFICIENT
- ±0.03%/℃ (0 ~ 50℃)
- VIBRATION
- 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes
SAFETY & EMC
- SAFETY STANDARDS
- UL8750(except for DA2-Type), CSA C22.2 NO.250.0-08, ENEC BS EN/EN61347-1, BS EN/EN61347-2-13, BS EN/EN62384 independent,GB/T19510.1,GB/T19510.213,BIS IS15885(except for DA2-Type), EAC TP TC 004 approved; According to BS EN/EN61347-2-13 appendix J suitable for emergency installations(EL)(AC Input: 200-240Vac)(for DA2-Type only)
- DALI STANDARDS
- IEC62386-101, 102, 207,251
- WITHSTAND VOLTAGE
- I/P-O/P:3.75KVAC ; I/P-DA:1.5KVAC ; O/P-DA:1.5KVAC
- ISOLATION RESISTANCE
- I/P-O/P:>100M Ohms / 500VDC / 25℃/ 70% RH
- EMC EMISSIONNote.6
- Compliance to BS EN/EN55015, BS EN/EN61000-3-2 Class C(@load≧50%) ; BS EN/EN61000-3-3; GB/T 17743, 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-Line 2KV), EAC TP TC 020
OTHERS
- MTBF
- 2661.8K hrs min. Telcordia SR-332 (Bellcore) ; 213.3K hrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 105*68*23mm (L*W*H)
- PACKING
- 0.17Kg ; 72pcs/13.2Kg/1.04CUFT
Test conditions and notes9
- 1. All parameters NOT specially mentioned are measured at 230VAC input, rated current and 25℃ of ambient temperature.
- 2. De-rating may be needed under low input voltages. Please refer to “STATIC CHARACTERISTIC” sections for details.
- 3. Length of set up time is measured at first cold start. Turning ON/OFF the driver may lead to increase of the set up time.
- 4. Efficiency is measured at 500mA/50V output set by DIP switch.
- 5. Standby power consumption is measured at 230VAC.
- 6. 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)
- 7. 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).
- 8. Based on IEC 62386-101/102 DALI power on timing and interruption regulations, the set up time needs to test with a DALI controller which can support for DALI power on function, otherwise the set up time will be higher than 0.5 second for DA2-type.
- 9. 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 indoor lighting
- LED office lighting
- LED commercial lighting
- LED panel lighting
- Industrial lighting
Downloads
FAQ
Can I use the LCM-25DA with dimmable LED downlights?
Yes, the LCM-25DA is a constant current LED driver rated at 25.2W (18.9W at 350mA), with DIP-switch selectable output from 350mA to 1050mA (700mA default, 6-36V at that setting). It is intended for constant current LED downlights and adds DALI and push dimming.
Is the LCM-25DA a good fit for signage modules that need dimming control?
It can be, provided the signage modules are designed for constant current operation instead of constant voltage. This model delivers 700mA by default over 6-36V (selectable 350mA to 1050mA via DIP switch) and is rated up to 25.2W, with DALI and push dimming for controlled dimming.
Can the LCM-25DA power a small constant current LED array?
Yes, for small LED arrays built around a constant current input, the LCM-25DA fits loads within its 6-36V range at the default 700mA setting (other DIP-switch settings from 350mA to 1050mA change the range). Its 25.2W power level makes it appropriate for smaller arrays rather than higher-power constant current assemblies.
How do I match the LCM-25DA to my LED load?
Match it to LEDs that require constant current and whose total forward voltage stays within the DC voltage range of the selected current: 6-54V at 350mA, 6-50V at 500mA, 6-42V at 600mA, 6-36V at 700mA (default), 6-28V at 900mA and 6-24V at 1050mA. Size the load by forward-voltage total, not as a constant voltage driver.
Can the LCM-25DA handle demanding ambient conditions?
It is specified for a case temperature (Tcase) of -30°C to +85°C, with output load derating at higher temperatures per the output load vs temperature curve, which supports enclosed lighting equipment. Environmental suitability still needs to align with the rest of the fixture because the listed specs here focus on temperature, not a separate IP rating.
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