MODEL

LDD-300H

LDD-350H

LDD-500H

LDD-600H

LDD-700H

LDD-1000H

OUTPUT

DC VOLTAGE

2 ~ 52VDC

RATED CURRENT

300mA

350mA

500mA

600mA

700mA

1000mA

RIPPLE & NOISE(max.) Note.2

150mVp-p

150mVp-p

150mVp-p

200mVp-p

200mVp-p

350mVp-p

SWITCHING FREQENCY

40KHz ~ 1000KHz

CURRENT ACCURACY

3% at 24VDC input ; 4% at 48VDC input

EXTERNAL CAPACITANCE LOAD

2.2uF

INPUT

VOLTAGE RANGE

9~ 56VAC

EFFICIENCY (Typ.)

97% at full load and 36VDC/48VDC input

DC CURRENT (Typ.)

Full load Note.3

270mA

320mA

450mA

550mA

650mA

900mA

No load

10mA

FILTER

Capacitor

PWM

DIMMING

&

ON/OFF

CONTROL

REMOTE ON/OFF

Leave open if not use

Power ON with dimming: DIM ~ -Vin >2.5 ~ 6VDC or open circuit

Power OFF : DIM ~ -Vin < 0.8VDC or short

QUIESCENT INPUT

IN SHUTDOWN MODE(max.)

CURRENT

1mA at PWM dimming OFF and 24VDC input

PWM FREQUENCY

100 ~ 1KHz

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

ENVIRO

NMENT

WORKING TEMP.

-40 ~ +85 (Refer to output load derating curve)

WORKING HUMIDITY

20 ~ 95% RH non-condensing

STORAGE TEMP., HUMIDITY

-55 ~ +125 , 10 ~ 95% RH

TEMP. COEFFICIENT

0.03%/

VIBRATION

10 ~ 500Hz, 5G 12min./1cycle, period for 72min. each along X, Y, Z axes

OPERATING CASE TEMP. (max.)

100

EMC

EMI CONDUCTION & RADIATION 

Compliance to EN55015, FCC part 15 class B

EMS IMMUNITY

Compliance to EN61000-4-2,3,4,6,8, light industry level, criteria A

OTHERS

MTBF

2000Khrs min.  MIL-HDBK-217F (25 )

DIMENSION

31.8*20.3*12.2mm or 1.25"*0.8"*0.48" inch (L*W*H)

PACKING 

18g

POTTING MATERIAL

Expoxy(UL94-V0)

NOTE

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 0.1uf capacitor.

3.Test condition: 48VDC input.