LDD-300H Mean Well, LDD-300H Datasheet - Page 2

• Manufacturer Part Number: LDD-300H
• Description: LED Drivers 9-56Vin 2-52Vout 300mA LED Driver
• Manufacturer: Mean Well

Specifications of LDD-300H

• High Level Output Current: 300 mA
• Operating Supply Voltage: 2 VDC to 52 VDC
• Maximum Operating Temperature: + 125
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 55 C
• Lead Free Status / Rohs Status: Details

PWM
Signal
Output
Current
Fig-1
Fig-3
PWM Dimming Control
Efficiency VS Output Voltage(Number of LEDs)
100%
100%
During PWM dimming operation, the output current will change to
PWM style.
95%
90%
85%
80%
95%
90%
85%
80%
75%
70%
100
100.0%
100.0%
75
50
25
95.0%
90.0%
85.0%
80.0%
95.0%
90.0%
85.0%
80.0%
75.0%
70.0%
0
1
1
1
1
H
L
Max
0
OFF
2
2
25
100~1KHz
ON
DC-DC Constant Current LED driver
Duty Cycle (%)
OFF
Tol : 3%(Typ.)
3
3
ON
12VDC input, 1~3 LEDs(Vf=3V)
36VDC input, 1~10 LEDs(Vf=3V)
50
OFF
Output Voltage(LEDs)
4
4
ON
Output Voltage(LEDs)
75
5
5
2
2
6
6
100
7
7
8
8
9
9
+Vin
-Vin
H: >2.5~6VDC or open circuit
L: <0.8VDC or short
H
L
10
3
Standard Application
3
10
PWM
300mA
350mA
500mA
600mA
700mA
1000mA
300mA
350mA
500mA
600mA
700mA
1000mA
300mA
350mA
500mA
600mA
700mA
1000mA
300mA
350mA
500mA
600mA
700mA
1000mA
Fig-4
100%
100%
95%
90%
85%
80%
75%
95%
90%
85%
80%
75%
70%
65%
Fig-2
100.0%
95.0%
90.0%
85.0%
80.0%
75.0%
100.0%
95.0%
90.0%
85.0%
80.0%
75.0%
70.0%
65.0%
1
1
1
1
Dimming
2
2
2
2
3
3
4
4
LDD-H
48VDC input, 1~14 LEDs(Vf=3V)
24VDC input, 1~7 LEDs(Vf=3V)
5
5
3
3
Output Voltage(LEDs)
Output Voltage(LEDs)
6
6
7
7
L D D - H
4
4
8
8
9
9
5
5
File Name:LDD-H-SPEC 2011-06-02
10
10
11 12
11
6
6
12
+Vout
-Vout
13
13
s e r i e s
7
7
14
14
1st LED
Last LED
300mA
350mA
500mA
600mA
700mA
1000mA
300mA
350mA
500mA
600mA
700mA
1000mA
300mA
350mA
500mA
600mA
700mA
1000mA
300mA
350mA
500mA
600mA
700mA
1000mA