Datasheet

DC-DC Constant Current Step-Down LED driver
LDD-L series
File Name:LDD-L-SPEC 2014-09-30
DC/DC step-down converter
Constant current output: 1000mA to 1500mA
Wide input voltage: 6 ~ 36VDC
Wide output LED string voltage: 2 ~ 30VDC
High efficiency up to 95%
Built-in EMI filter, comply with EN55015 and FCC part15 without
additional input filter and capacitors
Built-in PWM +analog dimming and remote ON/OFF control
Protections: Short circuit
Cooling by free air convection
Fully encapsulated with IP67 level for pin and wire style
Non-potted, optional conformal coating for SMD style
(Order No.: LDD- 1000 LSC)
Compact size
Low cost, high reliability
Suitable for driving illumination LED
3 years warranty
SPECIFICATION
LDD-1000L LDD-1200L LDD-1500L
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
ENVIRONMENT
EMC
WORKING TEMP.
WORKING HUMIDITY
STORAGE TEMP., HUMIDITY
TEMP. COEFFICIENT
VIBRATION
OPERATING CASE TEMP. (max.)
MTBF
DIMENSION
OTHERS
WEIGHT
POTTING MATERIAL
SHORT CIRCUIT
FILTER
REMOTE ON/OFF
PWM FREQUENCY
REMOTE ON / OFF
QUIESCENT INPUT CURRENT
IN SHUTDOWN MODE(max.)
PROTECTION
RIPPLE & NOISE(max.) Note.2
SWITCHING FREQENCY
EXTERNAL CAPACITANCE LOAD (max.)
95% at full load and 24VDC/36VDC input for LDD-1000~1500L/LW
990mA
5mA
6 ~ 36VDC
2.2uF
1000KHz
1.5Vp-p
±5% at 24VDC input
2 ~ 30VDC
1000mA 1200mA
1.5Vp-p
1160mA
1500mA
1.5Vp-p
1450mA
2000Khrs min. MIL-HDBK-217F (25 )℃
-40 ~ + 71 (Refer to derating curve)℃
20% ~ 90% RH non-condensing for LDD-1000~1500L/LW ; 20%~85% RH non-condensing for LDD-1000~1500LS
-55 ~ +125 , 10 ~ 95% RH℃
±℃0.03% /
10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes
100℃
31.8*20.3*12.2mm or 1.25"*0.8"*0.48" inch (L*W*H) for LDD-1000~1500L/LW ; 31.8*20.3*10.9mm or 1.25"*0.8"*0.43" inch (L*W*H) for LDD-1000~1500LS
LDD-1000~1500L:15.6g ; LDD-1000~1500LW:18g ; LDD-1000~1500LS:12.8g
Expoxy(UL94-V0) for LDD-1000~1500L/LW ; without potted for LDD-1000~1500LS
Full load Note.3
No load
Capacitor
Leave open if not use
Power ON with dimming: DIM ~ -Vin >2.6 ~ 5.5VDC or open circuit
Power OFF : DIM ~ -Vin < 0.4VDC or short
100 ~ 500Hz
Leave open if not use
Power ON with dimming : DIM ~ -Vin>0.5~2.5VDC or open circuit
Power OFF : DIM ~ -Vin<0.4VDC or short
1mA at PWM dimming OFF and 24VDC input
■ Features :
VOLTAGE RANGE
Regulated at rated output current
Protection type: Can be continued, recovers automatically after fault condition is removed
Compliance to EN55015, FCC part 15 class B
Compliance to EN61000-4-2,3,4,6,8, light industry level, criteria A
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: 36VDC input.
4.Output voltage will always step down by 3 volts from input DC voltage.
NOTE
EMC IMMUNITY
EMC EMISSION
LDD-1000L Blank : pin style
W : wire style
S : SMD style
W