Datasheet > LDC-55B

LDC-55B

更新时间： 2022-02-26 11:39:15

品牌	Logo	应用领域
明纬 - MEANWELL		/
页数	文件大小	规格书
9页	117K
描述
55W Constant Power MODE Linear LED Driver

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数据手册

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LDC-55B 数据手册

55W Constant Power MODE Linear LED Driver

LDC-55 series

DIMMING OPERATION

Vo+

Vo-

AC/L

AC/N

NTC

IADJ

DIM+

DIM-

DA-;N

DA+;Ls

※ 3 in 1 dimming function(for B-Type)

ꢀOutput constant current level can be adjusted by applying one of the three methodologies between DIM+ and DIM-:

0 ~ 10VDC, or 10V PWM signal or resistance.

ꢀDirect connecting to LEDs is suggested. It is not suitable to be used with additional drivers.

ꢀDimming source current from power supply: 100μA (typ.)

◎ Applying additive 0 ~ 10VDC

100%

90%

80%

70%

60%

50%

40%

30%

20%

10%

Vo+

Vo-

DIM+

Additive Voltage

DIM-

“DO NOT connect "DIM- to Vo-"

0V 1V 2V 3V 4V 5V 6V 7V 8V 9V 10V

Dimming input: Additive voltage

100%

90%

80%

70%

60%

50%

40%

30%

20%

10%

◎ Applying additive 10V PWM signal (frequency range 100Hz ~ 3KHz):

Vo+

Vo-

DIM+

Additive PWM signal

DIM-

“DO NOT connect "DIM- to Vo-"

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

Duty cycle of additive 10V PWM signal dimming input

100%

◎ Applying additive resistance:

90%

80%

70%

60%

50%

40%

30%

20%

10%

Vo+

Vo-

DIM+

Additive Resistance

DIM-

“DO NOT connect "DIM- to Vo-"

Short 10K/N 20K/N 30K/N 40K/N 50K/N 60K/N 70K/N 80K/N 90K/N 100K/N

(N=driver quantity for synchronized dimming operation)

Dimming input: Additive resistance

Note : 1. Min. dimming level is about 8% and the output current is not defined when 0%< Iout<8%.

2. The output current could drop down to 0% when dimming input is about 0Vdc or 10V PWM signal with 0% duty cycle.

3. To ensure the dimming performance at low dimming level,output current must be over 75mA.

File Name:LDC-55-SPEC 2018-08-03

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