Page 86 MEAN WELL LED DRIVER CATALOG

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Features
• Constant current step-down mode (LDD-H) ; • PWM dimming and remote ON/OFF control
Constant current buck-boost mode (LDB-L) • Protections: Short circuit / Over temperature
• Wide input and output voltage range • Fully enclosed plastic case (UL 94V-0)
• High efficiency up to 97% • Class III safety voltage application
• Comply with BS EN55015 and FCC part 15 • 3 years warranty
without additional input filter and capacitors

LDD-300~1000H/HW/HS LDB-300~600L/LW
LDD-1200/1500H/HW

±3% at 24VDC input;
Output current accuracy ±4% at 48VDC input for LDD-H/HW; ±5% at 24VDC input (Typical)
±5% at 48VDC input for LDD-HS

Leave open if not used
PWM • Power ON with dimming: • Power ON with dimming:
dimming & Remote ON/OFF DIM ~ -Vin >2.5~6VDC or open circuit DIM ~ -Vin >2~10VDC or open circuit
ON/OFF • Power OFF: • Power OFF:
control DIM ~ -Vin <0.8VDC or short DIM ~ -Vin <0.5VDC or short
PWM frequency 100~1KHz 1KHz
Short circuit Regulated at rated output current, can be continued, auto-recovery

Over temperature protection Shut down, recovers automatically after temperature goes down
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Working temperature -40~+85 C (refer to output derating curve) -40~+71 C (refer to output derating curve)
EMC standards BS EN55015, BS EN61547, BS EN61000-4-2,3,4,6,8, FCC part 15 class B
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Operating case temp. (max.) 100 C 110 C
Dimension LDD-H/HW: 31.8x 20.3x 12.2
31.8x 20.3x 12.2
(LxWxH)(mm) LDD-HS: 31.8x 20.3x 11.4

LDD-H Series LDB-L Series
Output Output
Input Input
Model No. Voltage Current Io Tol. Effi. Model No. Voltage Current Io Tol. Effi.
(VDC) (VDC)
(VDC) (mA) (VDC) (mA)
LDD-300H 9~56 2~52 300 ±4% 97%
LDB-300L 9~36 2~40 300 ±5% 90%
LDD-350H 9~56 2~52 350 ±4% 97%
LDD-500H 9~56 2~52 500 ±4% 97%
LDB-350L 9~36 2~40 350 ±5% 90%
LDD-600H 9~56 2~52 600 ±4% 97%
LDD-700H 9~56 2~52 700 ±4% 97%
LDB-500L 9~30 2~32 500 ±5% 91%
LDD-1000H 9~56 2~52 1000 ±4% 97%
LDD-1200H 9~52 2~46 1200 ±5% 95%
LDB-600L 9~28 2~30 600 ±5% 91%
LDD-1500H 9~52 2~46 1500 ±5% 96%
= Blank, W, S ; Blank: pin style, W: wire style, S: SMD style = Blank, W ; Blank: pin style, W: wire style
= Blank, W ; Blank: pin style, W: wire style

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