LDH-25

LDH-25 MEANWELL | Alldatasheet

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File Name:LDH-25-SPEC 2020-10-13 DC-DC Step-Up Constant Current LED driver LDH-25 seri es 9.5～32VDC and offers models with different rated current ranging between 250mA and 700mA. With various function options, such as dimming methodologies, so as to provide the optimal design flexibility for DC source LED lighting system.  (Pin mounted style) (Lead wire style)

File Name:LDH-25-SPEC 2020-10-13 DC-DC Step-Up Constant Current LED driver LDH-25 seri es SPECIFICATION MODEL RATED CURRENT VOLTAGE RANGE Note.2 OUTPUT CURRENT ACCURACY(Typ.) VOLTAGE RANGE Note.2 EFFICIENCY (Typ.)INPUT SHORT CIRCUIT WORKING HUMIDITY WORKING TEMP. STORAGE TEMP., HUMIDITY TEMP. COEFFICIENT VIBRATION MTBF DIMENSIONOTHERS NOTE PACKING NO LOAD DC CURRENT (Typ.) 21W Leave open if not used 9.5~32VDC 91.5%/12V 20 ~ 90% RH non-condensing -40 ~ +70℃ (Refer to "Derating Curve") ±0.03%/℃ (0 ~ 50℃) 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes Pin mounted style: 50g, 200pcs/11Kg/0.89CUFT; Lead wire style: 57g, 200pcs/12.4kg/0.98CUFT CURRENT RIPPLE RATED POWER ENVIRONMENT PROTECTION DIMMING DIMMING FUNCTION Note.2 Output short circuit, the power supply will be damaged Output voltage rise to OVP, and drop equal to input voltage, re-power to recovery 250mA LDH-25-500 500mA LDH-25-250 LDH-25-700 700mA 12.5~84VDC 12.5~50VDC 12.5~36VDC ±5% at 12VDC input and 24 VDC Input 5%(@rated current) 2.5A/12VDC, 1.2A/24VDC 1KHz-3KHz 10V PWM signal or 0-10V DC input QUIESCENT INPUT CURRENT IN SHUTDOWN MODE(Typ.) 7mA when PWM dimming OFF @12VDC 25W 25.2W EMC EMC IMMUNITY Compliance to EN55015;EAC TP TC 020 Compliance to EN61547,EN61000-4-2,3,4,6,8; light industry level, criteria A;EAC TP TC 020 EMC EMISSION Note.5 4161K hrs min. Telcordia TR/SR-332(Bellcore); 896.4Khrs min. MIL-HDBK-217F (25℃) SAFETY & SAFETY STANDARDS IEC 61347-1, IEC 61347-2-13, EAC TP TC 004 approved 25.2W 92%/12V 350mA LDH-25-350 12.5~72VDC OVER VOLTAGE 85~120V 73~100V 51~80V 37~60V

File Name:LDH-25-SPEC 2020-10-13 Mechanical Specification Pin Configuration Unit: mmLDH (PIN Style): LDH (Lead Wire Style): Derating Curve INPUT VOLTAGE (V) LOAD (%) Static Characteristics 9.5 12 18 24 100 DC-DC Step-Up Constant Current LED driver P/N diameter:1.04 3.5±1mm 1.04 3.7 44 52.4 BOTTOM VIEW 27.2 2 BOTTOM VIEW 8mm 100±10mm 3.7 44 52.4 27.2 Pin No. Vin-(Black) Vin+(Red) Comment DC Supply Don’t connect to Vout- DC Supply (Blue) Dim+ 2 in 1 dimming (White) Dim- 2 in 1 dimming (Black) Vout- (Red) Vout+ LED- connection LED+ connection Pin No.

2 Vin-

DC Supply, Don’t connect to Vout-

1 Vin+ DC Supply

Ta (℃) LOAD (%) -40 0 25 50 60 70 100 100 18-32V 12-18V 12.3 4.0 3.5 3.5 3.7 3.7

File Name:LDH-25-SPEC 2020-10-13 Standard Application DC-DC Step-Up Constant Current LED driver ※ 2 in 1 dimming function ‧Output constant current level can be adjusted by applying one of the three methodologies between DIM+ and DIM-: 0 ~ 10VDC, or 10V PWM signal ‧Direct connecting to LEDs is suggested. It is not suitable to be used with additional drivers. ◎ Applying additive 0 ~ 10VDC ◎ Applying additive 10V PWM signal (frequency range 1KHz ~ 3KHz): Vo+ Vo- DIM+ DIM- + + - - “DO NOT connect "DIM- to Vo-" Additive Voltage Vo+ Vo- DIM+ DIM- + + - - “DO NOT connect "DIM- to Vo-" Additive PWM signal Output current (%) Dimming input: Additive voltage Duty cycle of additive 10V PWM signal dimming input 0V 1V 2V 3V 4V 5V 6V 7V 8V 9V 10V 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% Note: 1.Min.dimming level is about 8% and the output current is not defined when 0%＜lout＜8%. 2.The output voltage is about equal to input voltage when dimming input is about 0Vdc,or 10V PWM signal with 0% duty cycle. Output current (%) 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

File Name:LDH-25-SPEC 2020-10-13 DC-DC Step-Up Constant Current LED driver Efficiency VS Load Number of LEDs LDH-25-250 12VDC input Vf=3.05V EFFICIENCY (%) 90% 91% 92% 93% 94% 95% 7 11 15 19 23 27 LDH-25-350 12VDC input Vf=3.14V 90% 91% 92% 93% 94% 95% 8 11 14 17 20 23 LDH-25-500 12VDC input Vf=3.18V 90% 91% 92% 93% 94% 95% 6 8 10 12 14 16 LDH-25-700 12VDC input Vf=3.29V 90% 91% 92% 93% 94% 95% 6 7 8 9 10 11 Number of LEDs Number of LEDs Number of LEDs EFFICIENCY (%)EFFICIENCY (%)EFFICIENCY (%) Application Notes: 1.The positive and negative input terminals must be connected correctly and negative voltage can not be input to avoid damage to the power supply. 2.Due to the large input current, please pay attention to the voltage drop of the wiring, to ensure the power supply to work properly. 3.At dim off,LDH output voltage will drop to the same level as input voltage.To get luminaires complete dark, please make luminaires are light off when they are driving by the input voltage. Number of LEDs LDH-25-250 24VDC input Vf=3.05V EFFICIENCY (%) 92% 93% 94% 95% 96% 97% 9 15 21 27 LDH-25-350 24VDC input Vf=3.14V 92% 93% 94% 95% 96% 97% 9 14 19 24 LDH-25-500 24VDC input Vf=3.18V 92% 93% 94% 95% 96% 97% 9 11 14 16 LDH-25-700 24VDC input Vf=3.29V 92% 93% 94% 95% 96% 97% 9 10 11 12 Number of LEDs Number of LEDs Number of LEDs EFFICIENCY (%)EFFICIENCY (%)EFFICIENCY (%)