DC-DC Constant Current Step-Down LED driver
LDD-L series
■ Features :
ꢀDC/DC step-down converter
ꢀConstant current output: 300mA to 700mA
ꢀWide input voltage: 9 ~ 36VDC
ꢀWide output LED string voltage: 2 ~ 32VDC
ꢀHigh efficiency up to 95%
ꢀBuilt-in EMI filter, comply with EN55015 and FCC part15 without
additional input filter and capacitors
ꢀBuilt-in PWM dimming and remote ON/OFF control
ꢀProtections: Short circuit / Over temperature
ꢀCooling by free air convection
ꢀFully encapsulated with IP67 level for pin and wire style
ꢀCompact size
ꢀLow cost, high reliability
ꢀSuitable for driving illumination LED
ꢀ3 years warranty
LDD-350L
Blank : pin style
W
W
S
: wire style
: SMD style
SPECIFICATION
ORDER NO.
LDD-300L
LDD-350L
LDD-500L
LDD-600L
LDD-700L
CURRENT RANGE
300mA
350mA
500mA
600mA
700mA
VOLTAGE RANGE
Note.4 2 ~ 32VDC for LDD-300~700L/LW ; 2~ 28VDC for LDD-300~700LS
5% at 24VDC input
150mVp-p
CURRENT ACCURACY (Typ.)
RIPPLE & NOISE(max.) Note.2
SWITCHING FREQENCY
EXTERNAL CAPACITANCE LOAD (max.)
OUTPUT
150mVp-p
150mVp-p
200mVp-p
200mVp-p
40KHz ~ 1000KHz
2.2uF
9 ~ 36VDC for LDD-300~700L/LW ; 9~ 32VDC for LDD-300~700LS
95% at full load and 24VDC/36VDC input for LDD-300~700L/LW ; 95% at full load and 24VDC input for LDD-300~700LS
350mA 500mA 600mA 700mA
VOLTAGE RANGE
EFFICIENCY (max.)
INPUT
Full load Note.3 300mA
DC CURRENT
FILTER
No load
5mA
Capacitor
Leave open if not use
PWM
Power ON with dimming: DIM ~ -Vin >3.5 ~ 8VDC or open circuit
Power OFF : DIM ~ -Vin < 0.5VDC or short
100 ~ 1KHz
REMOTE ON/OFF
PWM FREQUENCY
DIMMING
&
ON/OFF
CONTROL
QUIESCENT INPUT CURRENT
IN SHUTDOWN MODE(max.)
1mA at PWM dimming OFF and 24VDC input
Regulated at rated output current
SHORT CIRCUIT
Protection type: Can be continued, recovers automatically after fault condition is removed
Tj 150℃ typically(IC1) detect on main control IC
PROTECTION
OVER TEMPERATURE
Protection type : Shut down, recovers automatically after temperature goes down
-40 ~ + 85℃(Refer to derating curve)
WORKING TEMP.
WORKING HUMIDITY
STORAGE TEMP., HUMIDITY
TEMP. COEFFICIENT
VIBRATION
20% ~ 90% RH non-condensing for LDD-300~700L/LW ; 20% ~ 85% RH non-condensing for LDD-300~700LS
-55 ~ +125℃, 10 ~ 95% RH
ENVIRONMENT
0.03% / ℃
10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes
100℃
OPERATING CASE TEMP. (max.)
SAFETY STANDARDS
EMC EMISSION
EAC TP TC 004 approved
EMC
Compliance to EN55015, FCC part 15 class B, EAC TP TC 020
Compliance to EN61000-4-2,3,4,6,8, light industry level, criteria A, EAC TP TC 020
1000Khrs min. MIL-HDBK-217F (25℃)
EMC IMMUNITY
MTBF
DIMENSION
22.6*9.9*8.9mm or 0.89"*0.39"*0.35" inch (L*W*H) for LDD-300~700L/LW ; 25.4*10.5*9.3mm or 1"*0.4135"*0.366" inch (L*W*H) for LDD-300~700LS
LDD-300~700L:4g ; LDD-300~700LW:7.3g ; LDD-300~700LS :3.4g
Expoxy(UL94-V0) for LDD-300~700L/LW ; without potted for LDD-300~700LS
OTHERS
NOTE
WEIGHT
POTTING MATERIAL
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.
4.Output voltage will always step down by 3 volts from input DC voltage.
5.The output of LDD-L should not be connected to the input of the same unit or output from other sources.
※ Product Liability Disclaimer：For detailed information, please refer to https://www.meanwell.com/serviceDisclaimer.aspx
File Name:LDD-L-SPEC 2020-10-30
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