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LDD-L Series Mean Well DC-DC Constant Current LED Driver

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$3.70

Key features for LDD-L Series


DC/DC step-down converter
Constant Current Output : 300mA to 700mA
Wide input voltage range: 9 ~ 36 VDC
Wide output LED string voltage : 2 ~ 32VDC
High efficiency up to 95%
Built-in EMI filter, comply with EN55015 and FCC part15 without additional input filter and capacitors
Built-in PWM dimming and remote ON/OFF control
Protections: Short circuit / Over temperature
Cooling by free air convection
Fully encapsulated with IP67 level for pin and wire style
Non-potted, optional conformal coating for SMD style (Order No. : LDD-(mA)LSC)
Compact size
Low cost, high reliability
Suitable for driving illumination LED
3 years warranty
LDD-L Series Datasheet / Full Specs

LDD-L Series Mean Well DC-DC Constant Current LED Driver

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extended warranty program

Product Details

Model No. LDD-H Series

Current Range (mA) 300mA , 350mA , 500mA , 600mA , 700mA

LDD-350L[  ]  - Blank = pin style

LDD-350L[W] - W = wire style

LDD-350L[S] - S = SMD(Surface Mount Device) style

Model No. LDD-300L LDD-350L LDD-500L LDD-600L LDD-700L
Output Current Range 300mA 350mA 500mA 600mA 700mA
Voltage Range 2 ~ 32 VDC for LDD-L/LW ; 2 ~ 28 VDC for LDD-LS
Current Accuracy ±5% at 24VDC input
Ripple & Noise (max.) 150mVp-p 150mVp-p 150mVp-p 200mVp-p 200mVp-p
Switching Frequency 40KHz ~ 1000KHz
External Capacitance Load 2.2uF
Input: Voltage Range 9 ~ 36 VDC for LDD-L/LW ; 9 ~ 32 VDC for LDD-LS

Efficiency (max.)

95% at full load and 24VDC / 36VDC input for LDD-L/LW ; 95% at full load and 24VDC input for LDD-LS
DC Current Full Load 300mA 350mA 500mA 600mA 700mA
DC Current Full Load 5mA
Filter Capacitor
PWM Dimming & ON/OFF Control Remote ON/OFF Leave open if not use
Power ON with dimming: DIM ~ -Vin > 3.5 ~ 8VDC or open circuit
Power OFF: DIM ~ -Vin < 0.5VDC or short
PWM Frequency 100 ~ 1KHz
Quiescent Input Current in Shutdown mode(max.) 1mA at PWM dimming OFF and 24VDC input
Protection: Short Circuit Regulated at rated output current
Protection type: Can be continued, recovers automatically after fault condition is removed
Over Temperature Tj 150°C typically (IC1) detect on main control IC
Protection type : shut down, recovers automatically after temperature goes down
Environment: Working Temp. -40 ~ +85°C (Refer to "Derating Curve")
Working Humidity 20% ~ 90% RH non-condensing for LDD-L/LW ; 20% ~ 85% RH non-condensing for LDD-LS
Storage Temp., Humidity -55 ~ +125°C, 10 ~ 95% RH
Temp. Coefficient ±0.03%/°C
Operating Case Temp.(max.) 100°C
Vibration 10 ~ 500Hz, 2G 10min. / 1cycle, period for 60min. each along X, Y, Z axes
EMC EMC Emission Compliance to EN55015, FCC part 15 class B
EMC Immunity Compliance to EN61000-4-2,3,4,5,6,8; Light Industry Level, criteria A
Others: MTBF 2000Khrs min. MIL-HDBK-217F (25°C)
Dimension 22.6 x 9.9 x 8.9mm or 0.89 x 0.39 x 0.48 inch(LxWxH) for LDD-L/LW; 25.4 x 10.5 x 9.3mm or 0.41 x 0.366 x 0.45 inch for LDD-LS (LxWxH)
Weight LDD-L: 4g ; LDD-LW : 7.3g : LDD-LS : 3.4g
Potting Material Expoxy (UL94-V0) for LDD-L/LW ; without potted for LDD-LS

Electrical Specifications

Name LDD-L Series Mean Well DC-DC Constant Current LED Driver
SKU LDD-L Series
Manufacturer Mean Well
Dimmable Dimming
Output Voltage No
Wattage No
Input Voltage No
Dimensions No

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