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LDD-H Series Mean Well Step-Down Mode CC DC-DC LED Drivers

LDD-H Series Mean Well Step-Down Mode CC DC-DC LED Drivers
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PART #: LDD-H
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Product Details


Features

INPUT VOLTAGE: 9 ~ 56VDC STEP-DOWN MODE: LED buck driver with wide input and output voltage range
OUTPUT CURRENT: Varies from 300mA - 1500mA DIMMABLE: PWM dimming with remote ON/OFF
CONNECTIONS: Pin, Wire (W), or SMD (S) Style HIGH EFFICIENCY: 97%
WARRANTY: 3-Years SAFETY: Short-Circuit & Over temperature
Super Small & Compact Size! CASING: Fully enclosed plastic case (UL 94V-0)

 


Description

Mean Well's LDD-H Series DC-DC LED drivers offer constant current mode output. The LED buck converters feature 9-56VDC input and output 2-52VDC. These low voltage drivers come in a wide range of output drive current options: 300mA to 1 Amp. The MeanWell LDD DC-DC converters have a high efficiency of 97% allowing them to operate between -40°C~+85ºC. They have a built-in EMI filter that complies with EMI lighting requirements (EN55015) without connecting any EMI restraint components, making them very convenient for PCB installations. Another great feature is they can be dimmed via PWM dimming controls. 

Mean Well LDD-H Model Number EncodingConnection Style Variations

The Mean Well LDD-H series comes in 3 different connection types. The standard is a pin version, 'W' is the wired version and 'S' is the SMD version where the pins are on the sides. The 1200 and 1500mA models do not come in the SMD style, only the wire and bottom pin connection type.

Support

LEDSupply is formally trained on all Mean Well products, so if there is any confusion please contact us.

Availability

While we do stock many models, there may be less popular versions that we do not stock. However, we are able to very quickly pull from a larger inventory and supply any Mean Well product normally within 7-10 business days.

 


Technical Documentation

LDD-H Series Specifications

Model Input 
(VDC)
Output Dimming Dimensions
(mm)
Connection
Type
Volt. Range
(VDC)
Current
(mA)
Temp.
(°C)
LDD-300H
LDD-300HW
LDD-300HS
9~56VDC 2~52VDC 300mA -40 ~ +85°C PWM & ON/OFF Control H/HW: 31.8(L) x 20.3(W) x 12.2(H)
HS: 31.8(L) x 20.3(W) x 10.9(H)
H=Pin Style
HW=Wire Style
HS=SMD Style
LDD-350H
LDD-350HW
LDD-350HS
9~56VDC 2~52VDC 350mA -40 ~ +85°C PWM & ON/OFF Control H/HW: 31.8(L) x 20.3(W) x 12.2(H)
HS: 31.8(L) x 20.3(W) x 10.9(H)
H=Pin Style
HW=Wire Style
HS=SMD Style
LDD-500H
LDD-500HW
LDD-500HS
9~56VDC 2~52VDC 500mA -40 ~ +85°C PWM & ON/OFF Control H/HW: 31.8(L) x 20.3(W) x 12.2(H)
HS: 31.8(L) x 20.3(W) x 10.9(H)
H=Pin Style
HW=Wire Style
HS=SMD Style
LDD-600H
LDD-600HW
LDD-600HS
9~56VDC 2~52VDC 600mA -40 ~ +85°C PWM & ON/OFF Control H/HW: 31.8(L) x 20.3(W) x 12.2(H)
HS: 31.8(L) x 20.3(W) x 10.9(H)
H=Pin Style
HW=Wire Style
HS=SMD Style
LDD-700H
LDD-700HW
LDD-700HS
9~56VDC 2~52VDC 700mA -40 ~ +85°C PWM & ON/OFF Control H/HW: 31.8(L) x 20.3(W) x 12.2(H)
HS: 31.8(L) x 20.3(W) x 10.9(H)
H=Pin Style
HW=Wire Style
HS=SMD Style
LDD-1000H
LDD-1000HW
LDD-1000HS
9~56VDC 2~52VDC 1000mA -40 ~ +85°C PWM & ON/OFF Control H/HW: 31.8(L) x 20.3(W) x 12.2(H)
HS: 31.8(L) x 20.3(W) x 10.9(H)
H=Pin Style
HW=Wire Style
HS=SMD Style
LDD-1200H
LDD-1200HW
9~52VDC 2~46VDC 1200mA -40 ~ +85°C PWM & ON/OFF Control H/HW: 31.8(L) x 20.3(W) x 12.2(H)
H=Pin Style
HW=Wire Style
LDD-1500H
LDD-1500HW
9~52VDC 2~46VDC 1500mA -40 ~ +85°C PWM & ON/OFF Control H/HW: 31.8(L) x 20.3(W) x 12.2(H)
H=Pin Style
HW=Wire Style

 

Misc. Characteristics

Characteristics
LDD-H Series
INPUT VOLTAGE
9 ~ 56VDC
OUTPUT CURRENT ACCURACY
±3% at 24VDC input
REMOTE ON
Power on with dimming: PWM DIM~DIM->2.5~6VDC or open circuit
REMOTE OFF
Power off: Analog DIM~DIM- <0.8VDC or short
PWM DIMMING FREQUENCY
100 ~ 1KHz
QUIESCENT INPUT CURRENT SHUTDOWN
1mA at PWM dimming OFF and 24VDC input
SHORT CIRCUIT
Regulated at rated output current / recovers automatically after fault removed
OVER TEMPERATURE
Shut down at 150ºC
WORKING TEMP.
-40 ~ +85°C (Refer to "Derating Curve")
WORKING HUMIDITY
20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-55 ~ +125°C, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.3%/°C 
VIBRATION
10~500Hz, 2G 10min./1cycle, period for 60min. each along X,Y,Z axes
EMC EMISSION
Compliance to EN55015
EMC IMMUNITY
Compliance to EN61000-4-2,3,4,6,8; light industry level, criteria A
MTBF
2000Khrs min. MIL-HDBK-217F (25°C)

 


Full Documentation

 

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