Constant current output: 300mA to 700mA

Wide input voltage: 9 ~ 36VDC

Wide output LED string voltage: 2 ~ 32VDC

High efficiency up to 95%

DC/DC step-down converter

Built-in EMI filter, comply with 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

Compact size

Low cost, high reliability

Suitable for driving illumination LED

3 years warranty

Fully encapsulated with IP67 level

SPECIFICATION

LDD-300L

LDD-350L

LDD-500L

LDD-600L

LDD-700L

ORDERNO.

CURRENTRANGE

VOLTAGERANGE

CURRENT ACCURACY (Typ.)

OUTPUT

EFFICIENCY (max.)

DCCURRENT

INPUT

PWM

DIMMING

&

ON/OFF

CONTROL

ENVIRONMENT

EMC

WORKINGTEMP.

WORKINGHUMIDITY

STORAGETEMP.,HUMIDITY

TEMP.COEFFICIENT

VIBRATION

OPERATINGCASETEMP.(max.)

MTBF

DIMENSION

OTHERS

NOTE

WEIGHT

POTTINGMATERIAL

SHORTCIRCUIT

FILTER

REMOTEON/OFF

PWMFREQUENCY

QUIESCENTINPUT

INSHUTDOWNMODE(max.)

CURRENT

OVERTEMPERATURE

PROTECTION

SWITCHINGFREQENCY

EXTERNAL CAPACITANCELOAD (max.)

95%atfullloadand24VDC/36VDCinput

300mA

10mA

9~36VDC

2.2uF

40KHz~1000KHz

150mVp-p

5%at24VDCinput

2~32VDC

300mA

350mA

150mVp-p

350mA

500mA

150mVp-p

500mA

600mA

200mVp-p

600mA

700mA

200mVp-p

700mA

2000Khrsmin.MIL-HDBK-217F (25

)

-40~+85

(Refertoderatingcurve)

20%~90%RHnon-condensing

-55~+125

,10~95%RH

0.03%/

10~500Hz,2G10min./1cycle,periodfor60min. eachalongX, Y,Zaxes

100

22.6*9.9*8.9mmor0.89"*0.39"*0.33"inch (L*W*H)

LDD-L:4g;LDD-LW:7.3g

Expoxy(UL94-V0)

1.All parameters are specified at normal input(24VDC), 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: 24VDC input.

Noload

Capacitor

Leaveopenifnotuse

PowerONwithdimming:DIM~-Vin>3.5~8VDCoropencircuit

PowerOFF:DIM~-Vin<0.5VDCorshort

100~1KHz

1mA atPWMdimmingOFFand24VDCinput

DC-DCConstantCurrentLEDdriver

Features :

VOLTAGERANGE

Tj150

typically(IC1)detectonmaincontrolIC

Regulatedatratedoutputcurrent

Protectiontype:Canbecontinued,recoversautomaticallyafterfaultconditionisremoved

Protectiontype:Shutdown,recoversautomaticallyaftertemperaturegoesdown

EMSIMMUNITY

CompliancetoEN55015,FCCpart15classB

CompliancetoEN61000-4-2,3,4,6,8,lightindustrylevel,criteria A

EMICONDUCTION&RADIATION

FileName:LDD-L-SPEC2012-03-01

LDD-350L

Blank : pin style

W

: wire style

W