Datasheet
LDD-350H- Blank : pin style
W : wire style
WDA
File Name:LDD-H-DA-SPEC 2018-05-11
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-1400HDA 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
RIPPLE & NOISE(max.) Note.2
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
1000Khrs 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)
Full load Note.3
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
LDD-H-DA series
■ Features :
VOLTAGE RANGE
4.2VDCStart up
Regulated at rated output current
Protection type: Can be continued, recovers automatically after fault condition is removed
3.8VDCShut-down
Compliance to EN55015, EAC TP TC 020
Compliance to EN61547, EN61000-4-2,3,4,6,8, light industry level, criteria A, EAC TP TC 020
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
SAFETY STANDARDS
EAC TP TC 004 approved