MEANWELL LDD-350H MEAN WELL Switching Power Supply Original DC-DC Constant Current Step-Down LED Driver Lighting Transformers | Лампы и

MEANWELL LDD-350H MEAN WELL Switching Power Supply Original DC-DC Constant Current Step-Down LED Driver Lighting Transformers | Лампы и

Features :

NOTE: 1.All parameters are specified at normal input(48VDC), rated load,25Degree 70% RH ambient.
2. Ripple & noise are measured at 20MHz by using a 12″ twisted pair terminated with a 0.1 uf capacitor.
3.Test condition:48VDC input.
4.Output voltage will always step down by 3 volts from input Dc voltage.

1PC X MEANWELL LDD-350H Led Driver

MODEL

LDD-350H

OUTPUT

CURRENT RANGE

350mA

VOLTAGE RANGE Note.4

2 ~ 52VDC

CURRENT ACCURACY (Typ.)

±3% at 24VDC input ; ±4% at 48VDC input for LDD-H/HW ; ±5% for LDD-HS

RIPPLE & NOISE (max.) Note.2

150mVp-p

SWITCHING FREQENCY

40KHz ~ 1000KHz

EXTERNAL CAPACITANCE LOAD (max.)

2.2uF

INPUT

VOLTAGE RANGE

9 ~ 56VDC

EFFICIENCY (max.)

97% at full load and 36VDC/48VDC input for LDD-H/HW ; 96% at full load and 36VDC/48VDC input for LDD-HS

DC CURRENT

Full load Note.3

320mA

No load

5mA

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

PWM FREQUENCY

100 ~ 1KHz

QUIESCENT INPUT

IN SHUTDOWN MODE(max.)

CURRENT

1mA at PWM dimming OFF and 24VDC input

SHORT CIRCUIT

Regula ted at rated output c urrent

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

OVER TEMPERATURE

Tj 150°C typically(IC1) detect on main control IC

Protection type : Shut down, recovers automatically after temperature goes down

ENVIRONMENT

WORKING TEMP.

-40 ~ + 85°C(Refer to derating curve)

WORKING HUMIDITY

20% ~ 90% RH non-condensing for LDD-H/HW ; 20%~85% RH non-condensing for LDD-HS

STORAGE TEMP., HUMIDITY

-55 ~ +125°C, 10 ~ 95% RH

TEMP. COEFFICIENT

±0.03% / °C

VIBRATION

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

OPERATING CASE TEMP. (max.)

100°C

EMC

EMC EMISSION

Compliance to EN55015, FCC part 15 class B

EMC IMMUNITY

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

OTHERS

MTBF

2000Khrs min. MIL-HDBK-217F (25°C)

DIMENSION

31.8*20.3*12.2mm or 1.25"*0.8"*0.48" inch (L*W*H) for LDD-H/HW ; 31.8*20.3*11.4mm or 1.25"*0.8"*0.45" inch (L*W*H) for LDD-HS

WEIGHT

LDD-H:15.6g ; LDD-HW:18g ; LDD-HS:12.8g

POTTING MATERIAL

Expoxy(UL94-V0) for LDD-H/HW ; without potted for LDD-HS