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Mean Well LDD-600HW DC/DC LED Driver CC 600mA - Step-down
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LDD-600HW is the model of this series: typical efficiency 97% at full load and 36VDC/48VDC input for LDD-H/HW ; 96% at full load and 36VDC/48VDC input for LDD-HS.
Features
- DC/DC step-down converter
- Constant current output: 300mA to 1500mA
- Wide input voltage: 9 ~ 56VDC
- Wide output LED string voltage: 2 ~ 52VDC
- High efficiency up to 97%
- Built-in EMI filter, comply with BS EN/EN55015 and FCC part15 without additional input filter and capacitors
- Built-in PWM 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- 350-1000 HSC)
- Compact size
- Low cost, high reliability
- Suitable for driving illumination LED
- 3 years warranty
Specifications
OUTPUT
- CURRENT RANGE
- 600mA
- VOLTAGE RANGENote.4
- 2 ~ 52VDC
- CURRENT ACCURACY (Typ.)
- Β±3% at 24VDC input ; Β±4% at 48VDC input for LDD-H/HW ; Β±5% for LDD-HS
- RIPPLE & NOISE(max.)Note.2
- 200mVp-p
- SWITCHING FREQENCY
- 40KHz ~ 1000KHz
- EXTERNAL CAPACITANCE LOAD (max.)
- 2.2uF
INPUT
- VOLTAGE RANGE
- 9 ~ 56VDC
- EFFICIENCY (max.)
- 97% at full load and 36VDC/48VDC input for LDD-H/HW ; 96% at full load and 36VDC/48VDC input for LDD-HS
- DC CURRENT Full loadNote.3
- 550mA
- DC CURRENT No load
- 5mA
- FILTER
- Capacitor
PWM DIMMING & ON/OFF CONTROL
- REMOTE ON/OFF
- Leave open if not use
- REMOTE ON/OFF
- Power ON with dimming: DIM ~ -Vin >2.5 ~ 6VDC or open circuit
- REMOTE ON/OFF
- Power OFF : DIM ~ -Vin < 0.8VDC 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 150β typically(IC1) detect on main control IC Protection type : Shut down, recovers automatically after temperature goes down
ENVIRONMENT
- WORKING TEMP.
- -40 ~ + 85β(Refer to derating curve)
- WORKING HUMIDITY
- 20% ~ 90% RH non-condensing for LDD-H/HW ; 20%~85% RH non-condensing for LDD-HS
- STORAGE TEMP., HUMIDITY
- -55 ~ +125β, 10 ~ 95% RH
- TEMP. COEFFICIENT
- Β±0.03% / β
- VIBRATION
- 10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes
- OPERATING CASE TEMP. (max.)
- 100β
EMC
- SAFETY STANDARDS
- EAC TP TC 020/2011 approved
- EMC EMISSION
- Compliance to BS EN/EN55015, FCC part 15 class B, EAC TP TC 020
- EMC IMMUNITY
- Compliance to BS EN/EN61000-4-2,3,4,6,8, light industry level, criteria A, EAC TP TC 020
OTHERS
- MTBF
- 1000Khrs min. MIL-HDBK-217F (25β)
- DIMENSION
- 31.8*20.3*12.2mm or 1.25"*0.8"*0.48" inch (L*W*H) for LDD-H/HW ; 31.8*20.3*11.4mm or 1.25"*0.8"*0.45" inch (L*W*H) for LDD-HS
- WEIGHT
- LDD-H:15.6g ; LDD-HW:18g ; LDD-HS:12.8g
- POTTING MATERIAL
- Expoxy(UL94-V0) for LDD-H/HW ; without potted for LDD-HS
Test conditions and notes5
- 1.All parameters are specified at normal input(48VDC), rated load, 25β 70% RH ambient.
- 2.Ripple & noise are measured at 20MHz by using a 12" twisted pair terminated with a 0.1uf capacitor.
- 3.Test condition: 48VDC input.
- 4.Output voltage will always step down by 3 volts from input DC voltage.
- 5.The output of LDD-H should not be connected to the input of the same unit or output from other sources.
Technical drawings
Downloads
FAQ
Can I use the LDD-600HW for a 600mA LED downlight?
Yes, this model is a constant current LED driver with a 600mA output. It is intended for LED loads that operate within its 2-52V constant current range. The LED string voltage needs to stay inside that 2-52V range, and the input must be about 3V above the string voltage.
Is the LDD-600HW suitable for signage LED modules that need constant current?
It can be used for signage modules when the module string is designed for constant current operation at 600mA. The available constant current output range is 2-52V. It is not a constant voltage driver, so it should not be chosen for LED modules that expect a fixed constant voltage supply.
Can this driver run a small LED array in a compact enclosure?
This model is built for compact installations, with a body size of 31.8 Γ 20.3 Γ 12.2 mm and a weight of 18 g. It provides 600mA constant current over a 2-52V LED string range. That makes it suitable for small LED arrays that match those electrical limits.
Will the LDD-600HW work in outdoor or wet locations?
The unit is fully encapsulated to IP67, so it is designed for use where that level of ingress protection is required. Its operating temperature range is -40Β°C to +85Β°C, with full load up to 71Β°C and derating above that. Final suitability still depends on the rest of the fixture or enclosure meeting the same environmental standard.
How do I know if my LEDs are compatible with the LDD-600HW?
Check that your LEDs require constant current at 600mA and that the total forward voltage falls within the 2-52V constant current range. The number of LEDs cannot be stated as a fixed count because it depends on each LED's forward voltage. If your LEDs need constant voltage instead of constant current, this is not the right driver type.
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