Miniature, SMT

Constant Current Output

DC/DC LED Drivers

Key Features:

Series

Input

Parameter

Conditions

Min.

Typ.

Max.

Units

Input Voltage Range

5.5

24.0

48.0

VDC

Max Input Voltage

See Note 1

55.0

VDC

Input Filter

Internal Capacitor

Output

Parameter

Conditions

Min.

Typ.

Max.

Units

Output Current Accuracy

Vin = 24V

±2.0

±3.0

%

Output Current Stability

Vin = 48V

±1.0

%

Output Capacitive Load

1,000

µF

Ripple & Noise

120

mV P-P

Temperature Coefficient

±0.015

Output Short Circuit

Continuous

Environmental

Parameter

Conditions

Min.

Typ.

Max.

Units

Operating Temperature Range, Ambient

300 mA, 350 mA Output Models

-40

+25

+85

º

C

All Other Models

-40

+25

+71

Operating Temperature Range, Case

Case

+100

º

C

Storage Temperature Range

-55

+125

º

C

Cooling

Free Air Convection

Humidity

RH, Non-condensing

95

%

Lead Temperature

1.5 mm From Case For 10 Sec

260

ºC

Physical

Case Size

0.94 x 0.54 x 0.295 Inches (23.86 x 13.70 x 7.50 mm)

Case Material

Non-Conductive Black Plastic (UL94-V0)

Weight

0.212 Oz (6.0g)

Remote On/Off Control

Parameter

Conditions

Min.

Typ.

Max.

Units

DC/DC On

Open Or 2.8 VDC < 6.0 VDC

DC/DC Off

<0.6 VDC

Remote Pin Drive Current

Vcont = 5.0 VDC

1

mA

Vin = 24V, Vcont = <0.6 VDC

400

µA

PWM Dimming

Parameter

Conditions

Min.

Typ.

Max.

Units

Operation Frequency

0.2

10

kHz

Reliability Specifications

Parameter

Conditions

Min.

Typ.

Max.

Units

MTBF

2.0

MHours

MicroPower Direct

292 Page Street

Suite D

Stoughton, MA 02072

USA

T: (781) 344-8226

F: (781) 344-8481

E: sales@micropowerdirect.com

W: www.micropowerdirect.com

www.micropowerdirect.com

Electrical Specifications

Specifications typical @ +25°C, nominal input voltage & rated output current, unless otherwise noted. Specifications subject to change without notice.

S

LDF24E-xx-xxx

Connection Notes:

used to help meet the conducted emissions

requirements (EN 55022 B) for the unit.

Recommended values are:

Other components added to the circuit

include an input storage capacitor to help

prevent problems due to input line sags and

an output capacitor to improve performance.

Recommended values are:

2. To comply with EN61000-4-5, a TVS should

be installed before the input filter compo-

nents. A SMCG51 is recommended.

2