MEANWELL LDB-500L Datasheet

DC-DC Constant C u rrent Buck-Boo st L ED driver

Features :

■

DC/DC buck-boost converter

‧

Constant current output: 300mA to 600mA

‧

Wide input voltage: 9 ~ 36VDC

‧

Wide output LED string voltage: 2 ~ 40VDC

‧

High efficiency up to 91%

‧

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

‧

LDB-L

seri e s

LDB-350L Blank : pin style

W

W : wire style

SPECIFICATION

ORDER NO.

CURRENT RANGE

VOLTAGE RANGE

OUTPUT

INPUT

PWM
DIMMING
&
ON/OFF
CONTROL

PROTECTION

ENVIRONMENT

EMC

OTHERS

NOTE

CURRENT ACCURACY (Typ.)

RIPPLE & NOISE(max.)

SWITCHIN G FREQENCY

EXTERNAL CAPACITANCE LOAD (max.)

VOLTAGE RANGE

EFFICIENCY (max.)

DC
CURRENT

FILTER

REMOTE ON/OFF

PWM FREQUENCY

QUIESCENT INPUT CURRENT
IN SHUTDOWN MODE(max.)

SHORT CIRCUIT

OVER TEMPERATURE

WORKING TEMP.

WORKING HUMIDITY

STORAGE TEMP., HUMIDITY

TEMP. COEFFICIENT

VIBRATION

OPERATING CASE TEMP. (max.)

EMC EMISSION

EMC IMMUNITY

MTBF
DIMENSION

WEIGHT

POTTING MATERIAL

1.All parameters are specified at normal input(24VDC), 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.

Full load

No load

LDB-300L LDB-350L LDB-500L LDB-600L

300mA 350mA

2 ~ 40VD C 2 ~ 40VD C 2 ~ 32VD C 2 ~ 30VDC

±4%

150mVp-p

Note.2

350KHz

10uF

9 ~ 36VD C 9 ~ 36VD C 9 ~ 30VD C 9 ~ 28VDC

89%

12VDC

90%

24VDC

1070mA

12VDC

530mA

24VDC

5mA

Capacitor

Leave open if not use

Power ON with dimming: DIM ~ -Vin >2 ~ 10VDC o r open circuit

Power OFF : DIM ~ -Vin < 0.5V DC or short

100 ~ 1KHz

1mA at PWM dimming OFF and 24VDC input

Regulat ed at ra ted ou tput current

Prote ction type: Can be continued, recovers au to ma ti ca lly after fault condi tion is removed

Tj 145 typically (IC1) detect on main contro l IC℃

Prote ction type : S hu t down, recovers automati cally after tem pera ture goes down

-40 ~ + 71 (Refer to derating curve)℃

20% ~ 90% RH non-condensing

-55 ~ +125 , 10 ~ 95% RH℃
± ℃0.03% /

10 ~ 500Hz, 2G 10min./1 c ycle, period for 60min. each along X, Y, Z axes
110℃

Compliance to EN55015, FCC part 15 class B

Compliance to EN61000-4-2,3,4,6,8, light industry level, criteria A

2000Khrs m in. MIL-HDBK-217F ( 25 )℃

31.8*20.3*12.2mm or 1.25"*0.8"*0.48" inch (L*W* H)

LDB-L:15.6g ; LDB-LW:18g

Expoxy(U L94-V0)

150mVp-p

89%

90%

1120mA

610mA

500mA

150mVp-p

89%

91%

1235mA

710mA

600mA

200mVp-p

87%

91%

1610mA

910mA

Fil e Name: LDB-L -SPEC 2 014-1 0-09

DC-DC Constant C u rrent Buck-Boo st L ED driver

LDB-L

seri e s

Mechanical Specification

Blank type(LDB

20.3 [0.80 ]

24
23

21

BOTTOM

VI EW

14
13 12

15. 24 [0.60 ]

NOTE: Pin t oler ance 0.05m m±

W type(LDB

20.3[0.80]

23

21

BOTTOM

VIEW

14

NOTE: All wi res UL3385 22AWG

1
2

11

_LW):

2

11

--_L):

3.81 [0.15]

ψ0.6 0

100 10m m±5 2 mm±

Uni t: mm (in ch)

SIDE

VI EW

12.2 [0.48]

12. 2

[0.48 ]

2

21

SIDE

VI EW

11

Pin Configuration

Pin No.

11,1 2

13, 14

23, 24

Pin No.

1,2

Outpu t

-Vi n

-Vout

+Vout

21

PWM D IM

+Vi n

Outpu t

-Vi n

2

(Bl ack)

-Vout

11

(Bl ue)
+Vout

14

(Yellow )

PWM D IM

21

(Wh ite)

23

+Vi n

(Red)

Comme nt

Don't c onnect

to -Vo ut

LED - Conne ction

LED + Conne ction

ON/OF F and PWM

Dim ming

(Leav e op en if

not use d)

DC Su pply

Comme nt

Don't c onnect

to -Vo ut

LED - Conne ction

LED + Conne ction

ON/OF F and PWM

Dim ming

(Leav e op en if

not use d)

DC Su pply

Derating Curve

100

75

60 for 500/600mA ℃

50

25

-40 0 25 50 60 71

Ta ( )℃

71 for ℃
300/3 50mA

100

Fil e Name: LDB-L -SPEC 2 014-1 0-09

DC-DC Constant C u rrent Buck-Boo st L ED driver

PWM Dimming Control

H(5V)

ON ON

PWM
Signal

OFF OFF OFF

L(0V)

100~1KHz

Max

Output
Current

0

Standard Application

+Vin +Vout

ON

LDB-L

seri e s

◎ During PWM dimming operation, the output current wil l change to

PWM style.

100

95

Non-Linear, Tol : 4%(Typ.)±

90

75

60

50

35

20

5

0 16 20 30 40 50 60 70 80 90 100

Du ty Cyc le ( %)

Power OFF : Duty cycle 0 ~ 15%
Power ON : Duty cycle 16 ~ 100%

1st LED

H: >2~10VDC or open circuit

L: <0.5VDC or short

Last LED

-Vout

-Vin

PWM

H

L

Dimming

LDB-L

Efficiency VS Output Voltage(Number of LEDs)

Fig-1 LD B-300 L

95%

95%

90%

90%

85%

85%

80%

80%

75%

75%

70%

70%

65%

65%

60%

60%

55%

55%

50%

50%

1 2 3 4 5 6 7 8 9 10 11 12 13

1

12V

12V

24V

24V

36V

36V

Output Voltage(LEDs)

Fig-3 LD B-500 L

95%

95% 95%

90%

90% 90%

85%

85% 85%

80%

80% 80%

75%

75% 75%

70%

70% 70%

65%

65% 65%

60%

60% 60%

55%

55% 55%

50%

50% 50%

1 2 3 4 5 6 7 8 9 10 11

1 12 23 34 45 56 67 78 89 910 1011 11

12V

12V 12V

24V

24V 24V

30V

30V 28V

Output Voltage(LEDs)

Fig-2 LD B-350 L

95%

95%

90%

90%

85%

85%

80%

80%

75%

75%

70%

70%

65%

65%

60%

60%

55%

55%

50%

50%

1 2 3 4 5 6 7 8 9 10 11 1 2 13

12 23 34 45 56 67 78 89 910 1011 1112 1213 13

Output Voltage(LEDs)

Fig-4 LD B-600 L

95%

90%

85%

80%

75%

70%

65%

60%

55%

50%

1 2 3 4 5 6 7 8 9 10 11

Output Voltage(LEDs)

Fil e Name: LDB-L -SPEC 2 014-1 0-09

12V

12V

24V

24V

36V

36V

12V

24V

28V