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Mean Well LDDS-700HWB DC/DC LED Driver CC 700mA - Step-down Wire Ty...
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LDDS-700HWB is the model of this series: typical efficiency 95%. Type B: 3 in 1 Dimming function.
LDDS-H series is a 45W DC/DC LED driver 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
- DC/DC step-down converter
- Constant current output: 250mA to 1000mA
- Wide input voltage: 12 ~ 56VDC(48V typ.)
- 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 control.
- Protections: Short circuit / Over temperature / Over current
- Cooling by free air convection
- Compact size and Fully encapsulated
- Suitable for driving illumination LED
- 5 years warranty
Specifications
OUTPUT
- CURRENT RANGE
- 700mA
- VOLTAGE RANGENote.4
- 2 ~ 45VDC
- CURRENT ACCURACY (Typ.)
- ±5% at 48VDC input (or 24VDC)
- RIPPLE & NOISE(max.)Note.2
- 350mVp-p
- SWITCHING FREQENCY
- 40KHz ~ 1000KHz
- EXTERNAL CAPACITANCE LOAD (max.)
- 2.2uF
INPUT
- VOLTAGE RANGE
- 12 ~ 56VDC
- EFFICIENCY (Typ.)Note.3
- 95%
- DC CURRENT Full loadNote.3
- 570mA
- DC CURRENT No load
- 6mA
- FILTER
- Capacitor
REMOTE ON/OFF & 3 IN 1 DIMMING
- PWM FREQUENCY
- 100 ~ 1KHz (4mA at PWM dimming off)
- 3 IN 1 DIMMING
- 0 ~ 10V / PWM / Resistor Dimming
PROTECTION
- SHORT CIRCUIT
- Regulated at rated output current Protection type: Can be continued, recovers automatically after fault condition is removed
- OVER TEMPERATURE
- Tj 150℃ typically(IC1) detect on main control IC Protection type : Shut down, recovers automatically after temperature goes down
ENVIRONMENT
- WORKING TEMP.
- -40 ~ + 55℃(Refer to derating curve) @ full load
- WORKING HUMIDITY
- 20% ~ 90% RH non-condensing
- STORAGE TEMP., HUMIDITY
- -55 ~ +125℃, 10 ~ 95% RH
- TEMP. COEFFICIENT
- ±0.03% / ℃
- VIBRATION
- 10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes
- OPERATING CASE TEMP. (max.)
- 90℃
SAFETY & EMC
- SAFETY STANDARDS
- EAC TP TC 020/2011 approved
- EMC EMISSION
- Compliance to BS EN/EN55015, 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
- 650Khrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 47*12*7mm or 1.85"*0.47"*0.28" inch (L*W*H)
- PACKING
- LDDS-HW: 9.5g, 36pcs/box, 0.43kg/box. 12 box per carton/6kg LDDS-HWB: 9.4g, 36pcs/box, 0.43kg/box. 12 box per carton/6kg
- POTTING MATERIAL
- Expoxy(UL94-V0)
MODEL ENCODING
- Blank
- Remote ON/OFF control
- B (this model)
- 3 in 1 Dimming function
Test conditions and notes5
- 1.All parameters are specified at normal input(48VDC), rated load, 25℃ 70% RH ambient.
- 2.Ripple & noise are measured at 20MHz by using a 12" twisted pair terminated with a 0.1μf capacitor.
- 3.Test condition: 48VDC input, 36VDC output without Dimming.
- 4.Output voltage will always step down 4 volts from input DC voltage.
- 5.The output of LDDS-H should not be connected to the input of the same unit or output from other sources.
Technical drawings
Typical 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)
Downloads
FAQ
Can I use the LDDS-700HWB for LED downlights that need constant current?
Yes, this model is a constant current step-down LED driver rated at 700 mA. It is intended for LED loads that operate within its 2-45V constant current range, rather than constant voltage products.
Is the LDDS-700HWB suitable for signage modules or small LED arrays?
It can be used for signage modules or small LED arrays when the load is designed for 700 mA constant current operation. The LED load must stay within the 2-45V constant current range, and the final number of LEDs depends on the forward voltage of each LED.
Can this driver work in outdoor or damp locations?
The datasheet gives no IP rating for the LDDS-700HWB, and its working humidity is 20% to 90% RH non-condensing, so it is not specified for outdoor or damp locations. Its operating temperature range is -40°C to +55°C at full load, with derating above that.
Is the LDDS-700HWB a good fit for compact LED assemblies with limited space?
This driver is compact at 47 × 12 × 7 mm and weighs 9.4 g, which can help in space-constrained LED assemblies. It remains a constant current product, so it should be paired with LED loads that fit its 700 mA output and 2-45V constant current range.
How does the LDDS-700HWB compare with other LDDS-HW and LDDS-HWB models?
Across these models, the LDDS-250HW and LDDS-250HWB are 250 mA, the LDDS-300HW and LDDS-300HWB are 300 mA, the LDDS-350HW and LDDS-350HWB are 350 mA, the LDDS-500HW and LDDS-500HWB are 500 mA, the LDDS-700HW and LDDS-700HWB are 700 mA, and the LDDS-1000HW and LDDS-1000HWB are 1000 mA. All listed siblings share a 2-45V constant current range; HW variants use remote ON/OFF control, while HWB variants add 3 in 1 dimming.
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