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| 型号： | A011-D-V-500 |
| 厂商： | LEDdynamics Inc |
| 文件页数： | 5/9页 |
| 文件大小： | 0K |
| 描述： | LED SUPPLY CC FLEXBLOCK 500MA |
| 标准包装： | 10 |
| 系列： | FlexBlock™ A011 |
| 类型： | 恒定电流 |
| 拓扑： | 降压-升压 |
| 输出数： | 1 |
| 电压 - 输入（最小）： | 10V |
| 电压 - 输入（最大）： | 32V |
| 输出电压： | 48V |
| 电流 - 输出（最大）： | 500mA |
| 功率（瓦特）： | 24W |
| 调光： | 模拟 |
| 特点： | SCP |
| 效率： | 90% |
| 端接类型： | 导线引线 |
| 尺寸/尺寸： | 2.00" L x 1.20" W x 0.38" H（50.8mm x 30.5mm x 9.5mm） |
| 安装类型： | 底座安装 |
| 其它名称： | 788-1086 |
A011 FlexBlock
TM
High Output Wide Range LED Power Module
DATA SHEET Page 5 of 9
Adjustable Current - External Control - “V” Model
Figures 14 and 15 show the ease of dimming the A011 FlexBlock TM High Output LED Power Module. Figure
14 shows the simplest dimming configuration using a 20K Ohm potentiometer. This gives a 0%, 5-100%
range of dimming. See figure 9. If multiple A011 modules are to be dimmed with a single potentiometer,
the value of the potentiometer should be approximately (20KΩ/N) where N is the number of modules.
Figure 15 shows a 0-10V wall dimmer, such as the LEDdynamics A019 Low Voltage Dimming Control , being
used to control the LED brightness. This is the preferred choice for dimming multiple units, as the 0-10V
dimming control can handle several drivers. The 0-10V input can also be supplied by a commercial lighting
controller that has current-sinking 0-10V outputs, allowing the integration of LEDs with other forms of
lighting in large automated systems.
For large systems where several distant FlexBlock modules will be dimmed together, it is imporant to use a
heavier gauge wire (such as 18AWG) to run the DIM lines in a star wiring pattern (where each module has a
run all the way back to the 0-10V dimming control). This will help to negate any voltage drops along the DIM
wires that could cause some lamps to dim differently than others.
For more advanced control, the 0-10V input can be Pulse Width Modulated (PWM). Figure 18 shows how
interfacing with a microcontroller can easily be accomplished with a 2N3904 or equivalent transistor. A PWM
frequency of 200Hz is recommended. This configuration can also be used to strobe or pulse the LEDs with a
TTL or CMOS logic signal.
In addition to the configurations described above, the FlexBlock may also be driven by a D to A converter.
The D/A converter must be able to sink at least 1ma of current from the 0-10V input of the FlexBlock. If the
D/A converter cannot sink current, a voltage follower with an open collector output should be used between
the D/A coverter and the 0-10V input.
If the dimming control circuit used with the FlexBlock has the potential to exceed 10V, current into the DIM
input needs to be limited to 10mA or less. See figure 8.
V in
0.5mA
Purple
Gray
Figure 8.
10V
To Dimming
Circuit
Dimming input equivalent circuit
LEDdynamics, Inc.
Figure 9.
Output vs. Dim Voltage
?2011 LUXdrive, A Division of LEDdynamics, Inc. www.LUXdrive.com.
Specifications subject to change without notice. May, 2011 - Rev 1.0
802.728.4533 P
802.728.3800 F
sales@LUXdrive.com
www.LUXdrive.com
Made in
the USA
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