LDD-350H-

Blank : pin style

W

: wire style

WDA

File Name:LDD-H-DA-SPEC 2017-08-17

DC/DC step-down converter

Constant current output: 350mA to 1400mA

Wide input voltage: 6 ~ 50VDC

Wide output LED string voltage: 3 ~ 45VDC

High efficiency up to 95%

Built-in EMI filter, comply with EN55015 without

additional input filter and capacitors

DALI dimming function input under voltage lockout

Built-in PWM and remote ON/OFF control(pin style only, wire style optional)

Protections: Short circuit

Cooling by free air convection

Fully encapsulated with IP65 level

Compact size

Suitable for driving illumination LED

3 years warranty

SPECIFICATION

LDD-350H

LDD-700H

LDD-1050H

LDD-1400H

DA

DA

DA

DA

--

--

ORDER NO.

CURRENT RANGE

VOLTAGE RANGE

Note.4

CURRENT ACCURACY (Typ.)

OUTPUT

EFFICIENCY (max.)

DC CURRENT

INPUT

PWM

DIMMING

&

ON/OFF

CONTROL

ANALOG

DIMMING

&

ON/OFF

CONTROL

(PIN STYLE ONLY)

(PIN STYLE ONLY)

ENVIRONMENT

EMC

WORKING TEMP.

WORKING HUMIDITY

STORAGE TEMP., HUMIDITY

TEMP. COEFFICIENT

VIBRATION

OPERATING CASE TEMP. (max.)

MTBF

DIMENSION

OTHERS

WEIGHT

POTTING MATERIAL

REMOTE ON/OFF

SHORT CIRCUIT

FILTER

REMOTE ON/OFF

PWM FREQUENCY

QUIESCENT INPUT CURRENT

IN SHUTDOWN MODE(max.)

INPUT VOLTAGE

LOCKOUT

PROTECTION

SWITCHING FREQENCY (Typ.)

EXTERNAL CAPACITANCE LOAD (max.)

95% at full load and 48VDC input

275mA

550mA

825mA

1280mA

6 ~ 40VDC

5mA

6 ~ 50VDC

1400uF

500KHz

300mVp-p

500mVp-p

500mVp-p

500mVp-p

±5% at 48VDC input

3 ~ 45VDC

350mA

700mA

1050mA

1400mA

3 ~ 36VDC

±5% at 28VDC input

1.6Mhrs min. MIL-HDBK-217F (25

)

℃

-40 ~ + 85

(Refer to derating curve)

℃

20% ~ 90% RH non-condensing

-55 ~ +125

, 10 ~ 95% RH non-condensing

℃

±℃

0.03% /

10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes

100

℃

LDD-H-DA:18g ; LDD-H-WDA:23g

40.6*23.5*10.1mm or 1.6"*0.93"*0.40" inch (L*W*H)

Expoxy(UL94-V0)

No load

Capacitor

Leave open if not use

Leave open if not use

Power ON with dimming: DIM ~ -Vin >1.2 ~ 5VDC or open circuit, max. operation voltage 5.5VDC

Power ON with dimming: Analog DIM ~ -Vin >0.1 ~ 2.5VDC or open circuit, max. operation voltage 5.5VDC

Power OFF : DIM ~ -Vin < 0.1VDC or short

Power OFF : Analog DIM ~ -Vin <0.1VDC or short

200 ~ 1KHz

1mA at PWM dimming OFF and 24VDC input

DC-DC Constant Current Step-Down LED driver with DALI

■

Features :

VOLTAGE RANGE

4.2VDC

Start up

Regulated at rated output current

Protection type: Can be continued, recovers automatically after fault condition is removed

3.8VDC

Shut-down

Compliance to EN55015

Compliance to EN61547, EN61000-4-2,3,4,6,8, light industry level, criteria A

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 for 350~1050mA, 28VDC input for 1400mA.

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.

NOTE

EMC IMMUNITY

EMC EMISSION