V-Infinity Supplier Page

VLD24 Series

V-Infinity's High Efficiency Converter is Ideal for Driving High Power LEDs - Now at Digi-Key

Overview

CUI Inc's power division, V-Infinity, announces a line of step-down constant current dc-dc converters that have been designed for driving high power LEDs. The VLD24 series has efficiency levels of up to 95% and a wide input range of 5.5Vdc to 36Vdc. The series has two means of LED dimming: PWM digital dimming and analog dimming control via a trim POT. The VLD24 is ideal for a wide range of LED applications where precise accuracy and brightness control is needed including signage, transport, consumer electronics, and signaling.		 V-Infinity's VLD24 Series
  • Overview
  • Features
  • Specifications
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The VLD24 series has available output currents that include 300mA, 350mA, 500mA, 600mA, and 700mA with an output voltage range of 2Vdc to 32Vdc. The VLD24 series has an ambient operating temperature range of -40°C to +85°C at full load in the 300mA and 350mA versions and -40°C to +71°C in the 500mA, 600mA, and 700mA versions. Short-circuit protection and on/off control are standard features. This series is compact, measuring 0.897 x 0.401 x 0.374 inches in a PCB mount package.
  • power LED driver
  • high efficiency up to 95%
  • wide input voltage range
  • constant current output
  • PWM digital dimming
  • short-circuit protection
  • analog dimming
  • output on/off control
 RoHS Compliant

INPUT

parameter conditions/description min nom max units
input voltage absolute max before device failure 40 VDC
  operating input range 5.5 24 36 VDC
quiescent input Vin = 24V, VDIM< 0.6V 400 µA
current in off mode capacitor

OUTPUT

parameter conditions/description min nom max units
voltage range Vin is at least 1.5~4V higher than Vout 2 32 VDC
current range Vin-Vout > 1.5~4V 300 700 mA
current accuracy 300~700mA ±8 ±12 %
current stability Vin = 24V, Vout = 2~32V ±10 ±18 %
temp. coefficient -40°C ~ 71°C ambient ±0.03 %/°C
maximum capacitive 470 µF
load

PROTECTION CIRCUIT

parameter conditions/description
short-circuit protection regulated at rated output current
Digi-Key Part Number V-Infinity Part Number Description
102-1898-ND VLD24-300 LED DRIVER DC/DC 2-32V OUT 300MA
102-1899-ND VLD24-350 LED DRIVER DC/DC 2-32V OUT 350MA
102-1900-ND VLD24-500 LED DRIVER DC/DC 2-32V OUT 500MA
102-1901-ND VLD24-600 LED DRIVER DC/DC 2-32V OUT 600MA
102-1902-ND VLD24-700 LED DRIVER DC/DC 2-32V OUT 700MA