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RCDE-48 Datasheet Preview

RCDE-48 Datasheet

DC/DC Converter

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Features
dimmable
LED
Driver
• Low cost buck LED driver
• 6-60V input
• Constant current output (350, 700 or 1050mA)
• Digital PWM and analogue voltage dimming
• High efficiency up to 97%
• no internal E-Caps
• RoHS2 conform
DC/DC Converter
RCDE-48
Description
The RCD-48 series is a step-down constant current source designed for driving high power LED
applications from 12V, 24V or 48V nominal input voltages. 350, 700 or 1050mA output currents are
available as standard. The input voltage range is from 6V up to 60VDC with UVLO. These high efficiency
buck drivers have digital PWM and/or analogue voltage dimming control which is capable of being
controlled by 3.3V logic. The dimming input can also be used as an CTRL pin. Typical application is a
48V powered lighting solution for up to 15 high brightness LEDs in series.
Constant
Current
Buck
LED Driver
Selection Guide
Part
Number
Input
Output Output Efficiency Dimming
Voltage Range Voltage Range Current
typ. (1) Control
[VDC] [VDC] [mA] [%]
RCDE-48-0.35
6-60
3-52
0-350
97 Analogue and PWM
RCDE-48-0.70
6-60
3-52
0-700
97 Analogue and PWM
RCDE-48-1.05
6-60
3-52
0-1050
97 Analogue and PWM
All LED Drivers may not be used without a load. They must be switched on the primary side only.
Noncompliance may damage the LED or reduce its lifetime.
Notes:
Note1: Efficiency is tested at nominal input and 15 LEDs (15 x VF 3VDC = 45VDC) at +25°C ambient
Model Numbering
RCDE-48-
nom. Input Voltage
Output Current
Ordering Examples
RCDE-48-0.70
6-60 Vin 3-52Vout 0-700mA Analogue and PWM Dimming
www.recom-power.com
REV.: 0/2019
L-1




RECOM

RCDE-48 Datasheet Preview

RCDE-48 Datasheet

DC/DC Converter

No Preview Available !

RCDE-48
DC/DC Converter
Specifications (measured @ Ta= 25°C, nom. Vin and 15 LEDs (15*3V=45V) unless otherwise stated)
Series
BASIC CHARACTERISTICS
Parameter
Condition
Internal Input Filter
Input Voltage Range
nom Vin= 48VDC
Under Voltage Lockout (UVLO)
nom. Vin= 48VDC
DC-DC ON
DC-DC OFF
Standby Current
nom. Vin= 48VDC
DC-DC OFF
Internal Operating Frequency
Output Ripple Current
20MHz BW
RCDE-48-0.35
RCDE-48-0.70
RCDE-48-1.05
Output Ripple Noise
20MHz BW
RCDE-48-0.35
RCDE-48-0.70
RCDE-48-1.05
Reflected Back Ripple Current
Dropout Voltage
refer to “DROPOUT VOLTAGE”
for detailed information
RCDE-48-0.35
RCDE-48-0.70
RCDE-48-1.05
RCDE-48-0.35
100
Efficiency vs. Load
3.0
90 2.5
80 2.0
70
60 1.5
50 1.0
40
30 0.5
20 0
10 2 3
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Output Load [Number of Diodes]
RCDE-48-0.70
100
Efficiency vs. Load
3.0
90 2.5
80 2.0
70
60 1.5
50 1.0
40
30 0.5
20 0
10 2 3
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Output Load [Number of Diodes] continued on next page
Min. Typ.
6VDC
48VDC
210kHz
5mA
100mAp-p
200mAp-p
320mAp-p
200mVp-p
300mVp-p
400mVp-p
50mAp-p
1VDC
1.5VDC
2VDC
Dropout Voltage vs. Load
Max.
capacitor
60VDC
5.6VDC
5.3VDC
550kHz
3VDC
4 5 6 7 8 9 10 11 12 13 14 15
Output Load [Number of Diodes]
Dropout Voltage vs. Load
4 5 6 7 8 9 10 11 12 13 14 15
Output Load [Number of Diodes]
www.recom-power.com
REV.: 0/2019
L-2


Part Number RCDE-48
Description DC/DC Converter
Maker RECOM
Total Page 7 Pages
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