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MODEL
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LDD-300H
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LDD-350H
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LDD-500H
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LDD-600H
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LDD-700H
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LDD-1000H
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OUTPUT
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DC VOLTAGE
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2 ~ 52VDC
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RATED CURRENT
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300mA
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350mA
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500mA
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600mA
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700mA
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1000mA
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RIPPLE & NOISE
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150mVp-p
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150mVp-p
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150mVp-p
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200mVp-p
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200mVp-p
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350mVp-p
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SWITCHING FREQENCY
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40KHz ~ 1000KHz
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CURRENT ACCURACY
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3% at 24VDC input ; 4% at 48VDC input
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EXTERNAL CAPACITANCE LOAD
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2.2uF
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INPUT
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VOLTAGE RANGE
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9~ 56VAC
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EFFICIENCY (Typ.)
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97% at full load and 36VDC/48VDC input
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DC CURRENT (Typ.)
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Full load Note.3
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270mA
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320mA
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450mA
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550mA
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650mA
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900mA
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No load
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10mA
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FILTER
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Capacitor
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PWM
DIMMING
&
ON/OFF
CONTROL
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REMOTE ON/OFF
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Leave open if not use
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Power ON with dimming: DIM ~ -Vin >2.5 ~ 6VDC .or open circuit
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Power OFF : DIM ~ -Vin < 0.8VDC .or short
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QUIESCENT INPUT
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1mA at PWM dimming OFF and 24VDC input
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PWM FREQUENCY
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100 ~ 1KHz
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SHORT CIRCUIT
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Regulated at rated output current
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Protection type: Can be continued, recovers automatically after fault condition is removed
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OVER TEMP
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Tj 150 typically(IC1) detect on main control IC
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Protection type : Shut down, recovers automatically after temperature goes down
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ENVIRO
NMENT
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WORKING TEMP.
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-40 ~ +85oC (Refer to output load derating curve)
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WORKING HUMIDITY
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20 ~ 95% RH non-condensing
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STORAGE TEMP., HUMIDITY
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-55 ~ +125oC , 10 ~ 95% RH
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TEMP. COEFFICIENT
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0.03%/oC
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VIBRATION
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10 ~ 500Hz, 5G 12min./1cycle, period for 72min. each along X, Y, Z axes
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OPERATING CASE TEMP.
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100
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EMC
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EMI CONDUCTION & RADIATION
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Compliance to EN55015, FCC part 15 class B
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EMS IMMUNITY
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Compliance to EN61000-4-2,3,4,6,8, light industry level, criteria A
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OTHERS
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MTBF
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2000Khrs min. MIL-HDBK-217F (25 )
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DIMENSION
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31.8*20.3*12.2mm .or 1.25"*0.8"*0.48" inch (L*W*H)
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PACKING
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18g
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POTTING MATERIAL
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Expoxy(UL94-V0)
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NOTE
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1.All parameters are specified at normal input(48VDC), rated load, 25oC 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.
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