LDDS-H series

DC-DC Constant Current Step-Down LED driver

LDDS-H series is a 45W DC/DC LED drive featuring constant current output. LDDS-H operates from 12~56VDC and offers models with different rated current ranging between 250mA and 1000mA. With the high efficiency up to 96%, The 94V-0 flame retardant plastic case with fully-potted to enhance the heat dissipation allows this series to fit for class Ⅲ commercial track light or DC bus lighting application.

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Description

LDDS-H series

DC-DC Constant Current Step-Down LED driver

LDDS-H series is a 45W DC/DC LED drive featuring constant current output. LDDS-H operates from 12~56VDC and offers models with different rated current ranging between 250mA and 1000mA. With the high efficiency up to 96%, The 94V-0 flame retardant plastic case with fully-potted to enhance the heat dissipation allows this series to fit for class Ⅲ commercial track light or DC bus lighting application.

Features (LDDS-H) :

  • DC/DC step-down converter
  • Constant current output: 250mA to 1000mA
  • Wide input voltage: 12 ~ 56VDC(48V )
  • Wide output LED forward string voltage: 2 ~ 45VDC
  • High efficiency up to 96%
  • Built-in EMI filter, comply with BS EN/EN55015
  • 3 in 1 dimming and remote ON/OFF
  • Protections: Short circuit / Over temperature / Over current
  • Cooling by free air convection
  • Compact size and Fully encapsulated
  • Suitable for driving illumination LED

Applications :

  • DC battery source lighting
  • Portable lighting
  • Commercial lighting
  • DC 48V Track lighting
  • DC 24V landscape lighting
  • For STUCCHI track adapters
  • For class Ⅲ application(SELV)

Additional information

Weight 0.0095 kg
Dimensions 4.7 × 1.2 × 0.7 cm
LDDS-H Types :

LDDS-250HW, LDDS-300HW, LDDS-350HW, LDDS-500HW, LDDS-700HW, LDDS-1000HW

Specifications

Model LDDS-250HW LDDS-300HW LDDS-350HW LDDS-500HW LDDS-700HW LDDS-1000HW
Output RATED CURRENT 250mA 300mA 350mA 500mA 700mA 1000mA
VOLTAGE RANGE 2 ~ 45VDC
CURRENT ACCURACY ±5% at 48VDC input (or 24VDC)
RIPPLE & NOISE(max.) 150mVp-p 150mVp-p 200mVp-p 350mVp-p 350mVp-p 350mVp-p
SWITCHING FREQENCY 40KHz ~ 1000KHz
EXTERNAL CAPACITANCE LOAD (max.) 2.2uF
Input VOLTAGE RANGE 12 ~ 56VDC
EFFICIENCY (Typ.) 94% 95% 96%
DC CURRENT Full load 200mA 250mA 300mA 400mA 570mA 820mA
No load 6mA
FILTER Capacitor

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