MEANWELL LDC-55DA Datasheet

55W Constant Power MODE Linear LED Driver

110

(for DA-Type only)

M M

SELV

LDC-55 series

■ Features ■ Applications
Constant Power mode output

Metal housing design
Full Power at 70~100% max Current

LED panel lighting
Indoor LED lighting

Linear LED lighting
Built-in active PFC function
Flicker Free design
Class 2 power supply
 <0.5WNo load / Standby power consumption
Output current level pre-settable
Function options: 3 in 1 dimming (dim-to-off); DALI

interface, push dimming

Typical lifetime>50000 hours
SELV and Isolated
5 years warranty

05

■ Description

LDC-55 series is a 55W AC/DC LED driver featuring the Constant Power mode output. LDC-55

operates from 180~295VAC and output current can be adjust between 500mA to 1600mA.

Thanks to the efficiency up to 90%, with the fanless design, the entire series is able to operate
for -25 ~+80 case temperature under free air convection.LDC-55 is equipped with various℃℃

function options, such as dimming methodologies, so as to provide the optimal design flexibility

for LED lighting system.

■ Model Encoding

LDC -

Type

Blank

DA2 DALI 2.0 In Stock

55

Function options

Rated wattage

Series name

Function Note

Non dimming

B

DA DALI,push dimming In Stock

3 in 1 dimming function (0~10Vdc and10V PWM signal and resistance)

In Stock
In Stock

File Name:LDC-55-SPEC 2018-07-09

SPECIFICATION

MODEL

OUTPUT CURRENT REGION

RATED POWER Note.2

CONSTANT CURRENT REGION

OUTPUT

INPUT

PROTECTION

FUNCTION

ENVIRONMENT

SAFETY &
EMC

OTHERS

NOTE

FULL POWER CURRENT RANGE

OPEN CIRCUIT VOLTAGE

LOW FREQUENCY
CURRENT RIPPLE

CURRENT TOLERANCE

SET UP TIME

VO LTAGE RANG E Note.3

FREQUENCY RANGE

POWER FACTOR

TOTALHARMONIC DISTORTION

EFFICIENCY (Typ.)

AC CURRENT(Typ.)

INRUSH CURRENT

MAX. No. of PSUs on 16A
CIRCUIT BREAKER

LEAKAGE CURRENT

SHORT CIRCUIT

OVER VOLTAGE

OVER TEMPERATURE

DIMMING

TEMP. COMPENSATION
WORKING TEMP.

MAX. CASE TEMP.

WORKING HUMIDITY

STORAGE TEMP., HUMIDITY

TEMP. COEFFICIENT

VIBRATION

SAFETY STANDARDS

DALI STANDARDS
WITHSTAND VOLTAGE

ISOLATION RESISTANCE

EMC EMISSION

EMC IMMUNITY

MTBF

DIMENSION

PACKING

1. All parameters NOT specially mentioned are measured at 230VAC input, rated and 25 of ambient temperature.current ℃

2. Please refer to " ".OUTPUT CURRENT SETTING

3. De rating may be needed under low input voltages. Please .- refer to STATIC CHARACTERISTIC sections for details

4. Length of set up time is measured at first cold start. Turning ON/OFF the power supply may lead to increase of the set up time.

5. The driver is considered as a component that will be operated in combination with final equipment. Since EMC performance will be affected by the
complete installation, the final equipment manufacturers must re-qualify EMC Directive on the complete installation again.

6. This series meets the typical life expectancy of >50000 hours of operation when Tcase, particularly point (or TMP, per DLC), is about 70 or less.℃tc

7. Please refer to the warranty statement on MEAN WELL's website at http://www.meanwell.com.

8. The ambient temperature derating of 3.5 /1000m with fanless models and of 5 /1000m with fan models for operating altitude higher than 2000m(6500ft).℃℃

55W Constant Power MODE Linear LED Driver

LDC-55

500 ~ 1600mA(500mAdefault)

55W

27 ~ 56V

Note.2

980 ~ 1600mA

60V

(max.)

3.0% max. @rated current

±5.0%

Note.4

(Typ.)

Note.5

500ms/230VAC

180 ~ 295VAC

(Please refer to "STATIC CHARACTERISTIC" )

section

47 ~ 63Hz

PF 0.95/230VAC@load 50%; PF 0.9/277VAC@load 75%≧≧≧≧
(Please refer to "POWER FACTOR (PF) CHARACTERISTIC" section)

THD< 10%(@load 50%/230VAC; @load 75%/277VAC)≧≧
(Please refer to “TOTAL HARMONIC DISTORTION(THD)” section)

90%(230VAC@Full load)

0.35A / 230VAC 0.25A/ 277VAC

(Typ.)

COLD START 30A(twidth= s measured at 50% Ipeak)/230VAC300 Per NEMA 410μ;

17 units (circuit breaker of type B) / 29 units (circuit breaker of type C) at 230VAC

<0.75mA / 277VAC

Hiccup mode or constant current limiting ,recovers automatically after fault condition is removed

61 ~ 80V

Shut down o/p voltage with auto-recovery or re-power on to recovery

Shut down o/p voltage, with auto-recovery

Please refer to DIMMING OPERATION”section“
By external NTC, please refer to TEMPERATURE COMPENSATION OPERATION section“”
Tcase=-25 ~ +80 (Please refer to “ OUTPUT LOAD vs TEMPERATURE” section)℃
Tcase=+80℃
20 ~ 95% RH non-condensing

-40 ~ +80 , 10 ~ 95% RH℃

±℃ ℃0.03%/ (0 ~ 60 )

10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes

UL8750 ENEC EN61347-1, EN61347-2-13, ;, CSA C22.2 No. 250.13-12; AS/NZS 61347.1:2016, AS/NZS IEC 61347.2.13:2013

Note.5

EN62384; GB19510.14,GB19510.1 approved, EAC TP TC 004

Compliance to IEC62386-101.102.207 for DA-Type only
I/P-O/P:3.75KVAC I/P-FG:2.0KVAC O/P-FG:1.5KVAC

I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25 / 70% RH℃
Compliance to

EN55015,EN61000-3-2 Class C (@load 50%) ; EN61000-3-3;GB/T17743,GB17625.1≧ ,EAC TP TC 020

Compliance to EN61000-4-2,3,4,5,6,8,11; EN61547, light industry level(surge immunity:Line-Earth:2KV,Line-Line:1KV),EAC TP TC 020

226.1Khrs min. MIL-HDBK-217F (25 )℃
320 30* *21mm (L*W*H)

0.255Kg;48pcs/13.24Kg/0.92CUFT

LDC-55 series

File Name:LDC-55-SPEC 2018-07-09

55W Constant Power MODE Linear LED Driver

0V

10V

20V

30V

40V

50V

60V

300mA 500mA 700mA 900mA 1100mA 1300mA 1500mA 1700mA

18K 20K 24K 27K 30K 33K 36K 39K 43K 47K 56K 68K 91K 150K 200K NC

1.6A 1.52A 1.45A 1.32A 1.26A 1.2A 1.15A 1.11A 1.06A 1.03A 0.95A 0.88A 0.8A 0.7A 0.65A 0.5A

BLOCK DIAGRAM

LDC-55 series

PFC fosc : 50~400KHz

PWM fosc : 30~200KHz

I/P

EMI FILTER

&

RECTIFIERS

CASE GROUND

CASE GROUND

O.L.P.O.T.P.

POWER

SWITCHING

OUTPUT CURRENT SETTING

◎I-V OperatingArea.

Output rated current level can be adjusted by a additive resistance.

LDC-55

56V

PWM & P FC

CONTROL

RECTIFIERS

&

FILTER

DETECTION

CIRCUIT

O.V.P.

CP.

+V

-V
DIM+

DIM-

(B Type)

LDC-55

VO LTAGE

◎ Rated current setting table

Note:output power 55W≤

27V

CURRENT

TB2

Vo+
Vo+
Vo-

Vo­NTC
NTC

IADJ
IADJ
IADJ
IADJ

File Name:LDC-55-SPEC 2018-07-09

resistor

55W Constant Power MODE Linear LED Driver

LDC-55 series

DIMMING OPERATION

AC/L
AC/N

FG

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: 100 A(typ.) μ

◎ Applying additive 0 ~ 10VDC

+

Vo+

-

Vo-

DIM+

DIM-

“DO NOT connect "DIM- to Vo-"

+

-

+

-

Additive Voltage

100%

90%

80%

70%

60%

50%

40%

Output current (%)

30%

20%

10%

0%

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

Dimming input:Additive voltage

Vo+
Vo+
Vo-

Vo­NTC
NTC

IADJ
IADJ
DIM+
DIM-

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

+

Vo+

-

Vo-

DIM+

DIM-

“DO NOT connect "DIM- to Vo-"

Additive PWM signal

+

-

◎ Applying additive resistance:

+

Vo+

-

Vo-

DIM+

DIM-

“DO NOT connect "DIM- to Vo-"

Additive Resistance

+

-

100%

90%

80%

70%

60%

50%

40%

Output current (%)

30%

20%

10%

0%

0%

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

Duty cycle of additive 10V PWM signal dimming input

100%

90%

80%

70%

60%

50%

40%

Output current (%)

30%

20%

10%

0%

Short

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

(N=driver quantityfor synchronized )dimming operation

Dimming input:Additive resistance

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

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 2018-07-09

55W Constant Power MODE Linear LED Driver

※DALI interface

AC/L
AC/N

AC/N
Push Button

AC/L

◎ PUSH dimming(primary side)

Action FunctionAction duration

Short push 0.1~1 sec. Turn ON-OFF the driver

Long push 1.5~10 sec. Every Long Push changes the dimming direction, dimming up or down

Reset >11 sec. Set up the dimming level to 100%

The factory default dimming level is at 100%.
If the push action lasts less than 0.05 sec., it will not lead to a change for the status of the driver.
Up to 10 drivers can perform the PUSH dimming at the same time when utilizing one common push button.
The maximum length of the cable from the push button to the last driver is 20 meters.
The additive push button can be connected only between the LS terminal, as displayed in the diagram,

and AC/L (in brown or black); it will lead to short circuit if it is connected toAC/N.

FG

DA-;N
DA+;Ls

LDC-55 series

Vo+
Vo+

Vo-

Vo­NTC
NTC

IADJ
IADJ

◎ DALI interface(primary side)

Apply DALI signal between DA+ and DA-
DALI protocol comprises 16 groups and 64 addresses.
First step is fixed at 8% of rated output power.

NOTE: DALI, Push dimming can not be used in the same time!(The factory setting defaults to DA)

File Name:LDC-55-SPEC 2018-07-09

55W Constant Power MODE Linear LED Driver

LDC-55 series

TEMPERATURE COMPENSATION OPERATION

LDC-55 have the built-in temperature compensation function ; by connecting a temperature sensor (NTC terminal) between the +NTC / -NTC
terminal of LDC-55 and the detecting point on the lighting system or the surrounding environment, output current of LDC-55 could be
correspondingly changed, based on the sensed temperature, to ensure the long life of LED.

Vo+
Vo+
Vo-

Vo­NTC
NTC

IADJ

IADJ
DIM+
DIM-

◎ LDC-55 can still be operated normally when the NTC resistor is not connected and the value of output current will be the current level selected

through the IADJ. pin
NTC reference:

◎

NTC resistance

<33K

Output current reduce as the resistance decreases

Output Current

NTC resistor

>33K

Notes: 1. MEAN WELL does not offer the NTC resistor and all the data above are measured by using resistor.

2. If new brand of NTC resistor is applied,please check the temperature curve first.

◎ Dimming function of the driver will be invalid when the "temperature compensation" function is in use.

Normal output current

File Name:LDC-55-SPEC 2018-07-09

70

72

74

76

78

80

82

84

86

88

90

92

94

96

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

277V

230V

55W Constant Power MODE Linear LED Driver

0.88

0.9

0.92

0.94

0.96

0.98

1

50% 60% 70% 80% 90% 100%

277V

230V

3%

4%

5%

6%

7%

8%

9%

10%

50% 60% 70% 80% 90% 100%

277VAC

230VAC

OUTPUT LOAD vs TEMPERATURE

LDC-55 series

100

80

60

40

LOAD (%)

20

-25 0-10 15 30 50

AMBIENT TEMPERATURE,Ta ( )℃

STATIC CHARACTERISTIC

100

90

80

70

60

LOAD (%)

50

40

100

80

60

40

LOAD (%)

20

65

60

(HORIZONTAL)

-25-100 203545556580

(HORIZONTAL)

Tcase ( )℃

POWER FACTOR (PF) CHARACTERISTIC

※ Tcase at 75℃

PF

190

180

200

INPUT VOLTAGE (V) 60Hz

TOTAL HARMONIC DISTORTION (THD)

※ 1100mA Model, Tcase at 75℃

THD

210

LOAD

220

230

240

295

(55W)

LOAD

(230Vac Input)

EFFICIENCY vs LOAD

LDC-55 series possess superior working efficiency up to 90%.

※ 1100mA Model,Tcase at 75℃

EFFICIENCY(%)

LOAD

File Name:LDC-55-SPEC 2018-07-09

LIFE TIME

0

20

40

60

80

100

120

25 30 35 40 45 50 55 60 65 70 75 80

55W Constant Power MODE Linear LED Driver

LIFETIME(Kh)

LDC-55 series

Tcase ( )

℃

File Name:LDC-55-SPEC 2018-07-09

55W Constant Power MODE Linear LED Driver

MECHANICAL SPECIFICATION

320

313

LDC-55 series

CASE NO.: 258A Unit:mm

3.5

ψ4.5

1

2

15

3

TB1

4

5
6

7

tc

 : Max. Case Temperature

Terminal Pin No. Assignment (TB1) : Terminal Pin No. Assignment (TB2) :

Pin N o.

1
2
3
4
5
6
7

Assignment

ACL
ACN

NC
FG

NC(for DA-type only )

DA-/N(for DA-type only)

DA+/Ls(for DA-type only)

Pin N o.

1
2
3
4
5
6
7
8
9

10

DIM+(for B-type only)

DIM-(for B-type only)

Assignment

Vo+
Vo+
Vo-

Vo-

NTC

NTC
IADJ
IADJ

5
tc

85

1
2
3
4
5
6
7
8
9

10

15

30

ψ4.5

TB2

21

9.5

PUSH DIMMING

Device connection

Retractive push-to-make

switch

ACN

ACL

N

L

S

TB1 wiring:

8-9mm

0.5-0.75mm

2

Installation Manual

Please refer to : http://www.meanwell.com/manual.html

TB2 wiring:

8-9mm

0.2-0.5mm

2

File Name:LDC-55-SPEC 2018-07-09