LDD-350H [MEANWELL]
DC-DC Constant Current LED driver; DC-DC恒流LED驱动器
| 型号： | LDD-350H |
| 厂家： | 
MEAN WELL ENTERPRISES CO., LTD. |
| 描述： | DC-DC Constant Current LED driver |
| 文件： | 总3页 (文件大小：238K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
DC-DC Constant Current LED driver
LDD-H series
Features :
Constant current output: 300mA to 1000mA
Wide input voltage: 9 ~ 56VDC
Wide output LED string voltage: 2 ~ 52VDC
High efficiency up to 97%
DC/DC step-down converter
Built-in EMI filter, comply with EN55015 and FCC part15 without
additional input filter and capacitors
Built-in PWM and remote ON/OFF control
Protections: Short circuit / Over temperature
Cooling by free air convection
Fully encapsulated with IP67 level
Compact size
Low cost, high reliability
Suitable for driving illumination LED
3 years warranty
LDD-350H
Blank : pin style
W
W
: wire style
SPECIFICATION
ORDER NO.
LDD-300H
LDD-350H
LDD-500H
LDD-600H
LDD-700H
LDD-1000H
CURRENT RANGE
300mA
350mA
500mA
600mA
700mA
1000mA
VOLTAGE RANGE
2 ~ 52VDC
3% at 24VDC input ; 4% at 48VDC input
CURRENT ACCURACY (Typ.)
RIPPLE & NOISE(max.) Note.2
SWITCHING FREQENCY
EXTERNAL CAPACITANCE LOAD (max.)
OUTPUT
150mVp-p
40KHz ~ 1000KHz
2.2uF
150mVp-p
150mVp-p
200mVp-p
200mVp-p
350mVp-p
9 ~ 56VDC
VOLTAGE RANGE
EFFICIENCY (max.)
97% at full load and 36VDC/48VDC input
320mA
INPUT
450mA
550mA
650mA
900mA
Full load Note.3 270mA
DC CURRENT
FILTER
No load
10mA
Capacitor
Leave open if not use
PWM
Power ON with dimming: DIM ~ -Vin >2.5 ~ 6VDC or open circuit
Power OFF : DIM ~ -Vin < 0.8VDC or short
100 ~ 1KHz
REMOTE ON/OFF
DIMMING
&
PWM FREQUENCY
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 type : Shut down, recovers automatically after temperature goes down
-40 ~ + 85 (Refer to derating curve)
PROTECTION
OVER TEMPERATURE
WORKING TEMP.
20% ~ 90% RH non-condensing
WORKING HUMIDITY
STORAGE TEMP., HUMIDITY
TEMP. COEFFICIENT
VIBRATION
-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.)
EMI CONDUCTION & RADIATION
EMS IMMUNITY
Compliance to EN55015, FCC part 15 class B
Compliance to EN61000-4-2,3,4,6,8, light industry level, criteria A
EMC
2000Khrs min. MIL-HDBK-217F (25
)
MTBF
DIMENSION
31.8*20.3*12.2mm or 1.25"*0.8"*0.48" inch (L*W*H)
LDD-H:16g ; LDD-HW:18.6g
OTHERS
NOTE
WEIGHT
Expoxy(UL94-V0)
POTTING MATERIAL
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.
File Name:LDD-H-SPEC 2011-10-07
DC-DC Constant Current LED driver
LDD-H series
Pin Configuration
Mechanical Specification
Unit: mm (inch)
Blank type(LDD
- H):
Pin No. Output
Comment
Don't connect
to -Vout
20.3 [0.80]
1,2
-Vin
24
23
22
1
2
11,12
13,14
-Vout
LED - Connection
+Vout LED + Connection
ON/OFF and PWM
Dimming
(Leave open if
not used)
BOTTOM
VIEW
SIDE
22
PWM DIM
3.81 [0.15]
VIEW
23,24
+Vin
DC Supply
14
13
11
12
15.24 [0.60]
12.2 [0.48]
NOTE:Pin size tolerance 0.60
HW):
0.05mm
-
W type(LDD
12.2
[0.48]
20.3[0.80]
5 2mm 100 10mm
Pin No. Output
Comment
-Vin
(Black)
Don't connect
to -Vout
2
2
2
23
21
-Vout
(Blue)
11
LED - Connection
LED + Connection
21
+Vout
14
SIDE
(Yellow)
BOTTOM
VIEW
VIEW
ON/OFF and PWM
Dimming
(Leave open if
not used)
PWM DIM
21
(White)
14
11
11
+Vin
(Red)
23
DC Supply
PWM Dimming Control
Derating Curve
ON
ON
ON
H
PWM
Signal
OFF
OFF
100~1KHz
OFF
100
75
L
85 for
300~500mA
71 for 600~1000mA
Max
0
50
25
Output
Current
-40
0
25
50
71 85 100
During PWM dimming operation, the output current will change to
PWM style.
Ta (
)
100
Tol : 3%(Typ.)
75
50
25
0
25
50
75
100
Duty Cycle (%)
File Name:LDD-H-SPEC 2011-10-07
DC-DC Constant Current LED driver
LDD-H series
Standard Application
+Vin
+Vout
1st LED
PWM
H
L
LDD-H
Dimming
Last LED
-Vin
-Vout
H: >2.5~6VDC or open circuit
L: <0.8VDC or short
Efficiency VS Output Voltage(Number of LEDs)
Fig-1
12VDC input, 1~3 LEDs(Vf=3V)
Fig-2
24VDC input, 1~7 LEDs(Vf=3V)
3
300mA
100%
1
100%
3
350mA
5
500mA
3
300mA
3
350mA
5
500mA
6
600mA
7
700mA
95%
95%
1
1000mA
6
600mA
7
700mA
1
1000mA
90%
90%
85%
85%
80%
80%
75%
1
1
2
2
3
3
2
3
4
5
6
7
1
Output Voltage(LEDs)
Output Voltage(LEDs)
3
300mA
Fig-3
36VDC input, 1~10 LEDs(Vf=3V)
Fig-4
48VDC input, 1~14 LEDs(Vf=3V)
3
300mA
3
350mA
3
350mA
100%
5
500mA
100%
5
500mA
6
600mA
6
600mA
7
700mA
95%
7
700mA
1
1000mA
95%
1
1000mA
90%
90%
85%
85%
80%
80%
75%
75%
70%
65%
70%
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10 11 12 13 14
Output Voltage(LEDs)
Output Voltage(LEDs)
File Name:LDD-H-SPEC 2011-10-07
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