CDM10V-3
0-10V Dimming Solution
Feature list
•
Simplest 0-10 V design on the market. CDM10V-3 comes with following key settings:
- 1kHz PWM frequency
- 200μA Dimmer/Resistor Bias current
- 1% minimum Duty-Cycle
Wide input V
cc
range from 11 to 25 V
Replaces many external components with a single chip reducing BOM and PCB space
Minimum variation from device to device
•
•
•
Potential Applications
•
•
LED Drivers needing 0-10 V Dimming Circuits
Industrial and Commercial Dimmable Applications:
Luminaires, Troffers, Downlights, Sconces, Undercabinet, Office Lighting, Signage applications,
Dali applications
Product Type
CDM10V-3
Package
SOT23-6
Product validation
Description
CDM10V-3 is a fully integrated 0-10 V dimming interface IC and comes in a SOT-23-6 package to cover space
requirements on small PCBs.
The device is targeted for various dimming applications in lighting. The IC can be used to transmit analog
voltage based signals from a 0-10 V dimmer or potentiometer to the dimming or PWM input of a lighting
controller IC in the form of a 5 mA current based PWM signal to drive an external opto-coupler. It replaces many
components in a traditional solution and reduces BOM and PCB space significantly.
The CDM10V-3 IC outputs a 1 - 100% PWM current signal at 1 kHz with an amplitude value of 5 mA.
Embedded digital signal processing maintains minimum variations from device to device.
Datasheet
www.infineon.com
Please read the Important Notice and Warnings at the end of this document
V1.0
2017-07-04
0-10V Dimming Solution
Table of contents
CDM10V-3
Table of contents
Feature list
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Potential Applications
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Product validation
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Description
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Table of contents
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1
2
3
4
5
6
Block diagram reference
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Pin configuration
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Functional description
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Electrical characteristics and parameters
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Package dimensions
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References
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Revision history
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Trademarks
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Datasheet
2
V1.0
2017-07-04
0-10V Dimming Solution
Block diagram reference
CDM10V-3
1
Block diagram reference
Figure 1
Block Diagram of the CDM10V-3
2
Table 1
Pin
1
2
3
4
5
6
Pin configuration
Pin configutation
Name
V
CC
GND
I
out
NC
NC
R
dim+
Function
Input supply voltage
GND
PWM output current
GND
GND
Dimmer current output /Voltage sense
Datasheet
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0-10V Dimming Solution
Functional description
CDM10V-3
3
Functional description
Typical Application Circuit
Figure 2
Note:
Typical Application Circuit
The Diode marked with * is for the protection of the R
dim+
-Pin when active dimming is used. This is
because the voltage on this Pin is not allowed to be higher than V
CC
+0.5V. It is advised to use a low
leakage, low reverse current Schottky-Diode in order to not influence the dimming performance (e.g.
MMSD301T1G).
The capacitor connected to the R
dim+
-Pin reduces the amount of coupled noise to the dimming signal.
The size of this capacitance should be in the range of 2.2 - 10 nF (typ. 4.7 nF), where a small capacitor
allows steeper edges of the dimming signal, a larger capacitor enhances the noise reduction.
Note:
Recommended cooling area
In order to guarantee the full functionality of the CDM10V-3 device, the required cooling area has to be selected
according to the graph in
Figure 3.
Datasheet
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0-10V Dimming Solution
Functional description
CDM10V-3
Figure 3
Cooling area over ambient temperature CDM10V-3
Datasheet
5
V1.0
2017-07-04
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