Datasheet

For more information, please visit the product page.
date
04/17/2012
page
1 of 5
SERIES: VLD24 │ DESCRIPTION: LED DRIVER
FEATURES
d
up to 700 mA constant current
wide input (5.5~36 V)
compact package
PWM or analog dimming capable
short circuit protection
remote on/off control
efficiency up to 96%
ue
•
•
•
•
•
•
•
RoHS
output
voltage
output
current
in
input
voltage
MODEL
dimming
control
efficiency
range
(Vdc)
range
(Vdc)
min
(mA)
max
(mA)
VLD24-300
24
6.5~36.0
2~30
0
300
digital + rheostat
96
VLD24-350
24
6.5~36.0
2~30
0
350
digital + rheostat
96
VLD24-500
24
6.5~36.0
2~30
0
500
digital + rheostat
96
24
6.5~36.0
2~30
0
600
digital + rheostat
96
48
6.5~36.0
2~30
0
700
digital + rheostat
96
nt
typ
(Vdc)
VLD24-600
is
co
VLD24-700
D
PART NUMBER KEY
VLD24 - XXX
Base Number
Input Voltage
cui.com
typ
(%)
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CUI Inc │ SERIES: VLD24 │ DESCRIPTION: LED DRIVER
date 04/17/2012 │ page 2 of 5
INPUT
parameter
conditions/description
min
maximum input voltage
for ≤ 10 seconds
5.5
operating input voltage
6.5
quiescent input current in off
mode
Vin = 24 V, Vr < 0.6 V
input filter
capacitor
remote on/off
ON (Vr on pin 3)
OFF
remote pin current
Vr = 5 V
parameter
conditions/description
output voltange range
Vin = 36 V
current accuracy
Vin = 24 V, 5 LEDs
current stability
Vin = 24 V, 1~5 LEDs
PROTECTIONS
typ
2
conditions/description
short circuit protection
continuous
nt
parameter
SAFETY AND COMPLIANCE
min
in
temperature coefficient
capacitive load
conditions/description
isolation voltage
for 1 minute at 1 mA max.
isolation resistance
at 500 Vdc
co
parameter
units
40
Vdc
36
Vdc
400
μA
1
mA
10
kHz
ue
0.2
OUTPUT
RoHS compliant
24
max
d
open or 2.8 V < Vr < 6 V
Vr < 0.6 V
PWM frequency
MTBF
typ
max
units
30
Vdc
±7
±12
%
±8
±15
%
±0.03
%/°C
470
μF
min
typ
max
units
min
typ
max
units
1,500
Vdc
1,000
MΩ
1,000,000
hours
yes
ENVIRONMENTAL
conditions/description
min
300 and 350 mA
500, 600, and 700 mA
-40
-40
is
parameter
operating temperature
storage temperature
typ
-55
case temperature
non-condensing
at full load
lead temperature
1.5 mm from case for 10 seconds
D
storage humidity
temperature rise
max
units
85
71
°C
°C
125
°C
100
°C
95
15
cui.com
%
°C
300
°C
For more information, please visit the product page.
CUI Inc │ SERIES: VLD24 │ DESCRIPTION: LED DRIVER
date 04/17/2012 │ page 3 of 5
MECHANICAL
parameter
conditions/description
dimensions
0.897 x 0.401 x 0.374 (22.80 x 10.2 x 9.5 mm)
min
case material
plastic (UL94-V0)
typ
max
inch
weight
3.5
d
MECHANICAL DRAWING
ue
units: mm [inches]
tolerance: ±0.25 [±0.010]
pin section tolerance: ±0.05 mm [±0.002]
10.20
(0.401)
4.10(0.161)
17.78(0.700)
Top view,grid:2.54mm(0.1inch),
diameter:1.00mm (0.039inch)
in
9.00
(0.354)
0.50 (0.020)
22.80(0.897)
7.62
(0.300)
nt
PIN CONNECTIONS
PIN
FUNCTION
COMMENTS
1
Vin
2
Rheostat Dim
3
On/Off/PWM
4
GND
5
-Vo
LED cathode connection
6
+Vo
LED anode connection
D
is
co
5
4
3
Bottom View
2
6
1
cui.com
units
DC supply
must connect to Vin if not in use
leave open if not in use
do not connect to -Vo
g
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CUI Inc │ SERIES: VLD24 │ DESCRIPTION: LED DRIVER
date 04/17/2012 │ page 4 of 5
APPLICATION NOTES
Digital Dimming Control
50% Duty Cycle
ue
Analog Dimming Control
A
1
VLD24-XXX
Cin
GND
RW
4
2
6
5
1st LED
3
La st L ED
POT Dim
0.75
0.703
0.657
Io_300w 0.61
0.563
Io_350w0.517
0.47
Io_500w0.423
0.377
Io_600w
0.33
Io_700w0.283
0.237
0.19
0.143
0.097
0.05
ON/ OFF /PWM
General:
Cin: 47 μF for best performance
in
+Vin
nt
Io can be set between 0A and Io(max) with trim pot Rw.
For example, to set the output current (Io) to 200mA
using the VLD24-350, choose Rw=0.4Ω. The trim pot
should be placed close to pins 1 and 2 with shortest
possible leads.
co
EMS Filter Circuits
+ Vin
1 µF
Cera mic
is
G ND
Fi ter2 T
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3
1
700 µ H * 2
2 .2 µF
Ce ra mic
VLD24-XXX
4 2
Rw
6
5
1s t LED
3
Las t LED
ON/OFF/PWM
D
3.
Output current(LED appears dimmer)
Output current(LED appears brighter)
Output current
2.
20% Duty Cycle
80% Duty Cycle
d
1.
cui.com
Ω
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CUI Inc │ SERIES: VLD24 │ DESCRIPTION: LED DRIVER
date 04/17/2012 │ page 5 of 5
REVISION HISTORY
rev.
description
date
1.0
initial release
07/18/2008
1.01
new template applied
09/02/2011
D
is
co
nt
in
ue
d
The revision history provided is for informational purposes only and is believed to be accurate.
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