CDM10VD
Flexible 0-10V Dimming Solution
CDM10VD
CDM10VD-2
CDM10VD-3
CDM10VD-4
Quality Requirement Category: Standard
Features
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•
•
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Simplest 0-10 V design on the market. CDM10VD-Series comes with the following default settings:
- Minimum duty cycle 5% or 10% @1V
- 1kHz PWM frequency
- 120μA Dimmer/Resistor Bias current
- 9.4 V dimming voltage for 100%
- 1mA or 5mA output current for driving an optocoupler
Wide input Vcc range from 11 to 25 V plus extended range down to 6V
Minimum 200mV dimming hysteresis between dimming to OFF and to ON
Variable Frequency PWM Input Mode
Replaces many external components with a single chip reducing BOM and PCB space
Minimum variation from device to device
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
Output current / min. Duty Cycle
Package
CDM10VD
CDM10VD-2
CDM10VD-3
CDM10VD-4
5 mA / 5 %
5 mA / 10 %
1 mA / 5 %
1 mA / 10 %
SOT23-6
SOT23-6
SOT23-6
SOT23-6
Description
CDM10V is a fully integrated 0-10 V dimming interface IC and comes in a SOT23-6 package to cover space
requirements on small PCB designs.
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 a potentiometer or a PWM input of a lighting controller IC,
transformed to a 5 mA/1 mA current based fixed frequency PWM signal, to directly drive an external
optocoupler. To avoid flickering when dimming, the light up and the light down threshold has a minimum
implemented hysteresis of 200mV.
It replaces many components in a traditional solution and reduces BOM and PCB space significantly.
The CDM10VD-Series ICs outputs a 0 - 100% PWM current signal at a frequency of 1 kHz with an amplitude value
of 1mA or 5 mA.
Datasheet
www.infineon.com
Please read the Important Notice and Warnings at the end of this document
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CDM10VD
Flexible 0-10V Dimming Solution
Description
The duty cycle of the PWM signal can be selected to be either 5% or 10%. Dim-to-off feature is fully supported
with a minimum hysteresis of 200 mV between dim-to-dark and dim-to-light.
Embedded digital signal processing maintains minimum variations from device to device.
Datasheet
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CDM10VD
Flexible 0-10V Dimming Solution
Table of contents
Table of contents
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2
Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
3
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
4
Electrial Characteristics and Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
5
Package Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Datasheet
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CDM10VD
Flexible 0-10V Dimming Solution
Block Diagram
1
Block Diagram
Figure 1
2
Block Diagram of the CDM10VD
Pin Configuration
Table 1
Pin configutation
Pin
Name
Function
1
VCC
Input supply voltage
2
GND
GND
3
Iout
PWM output current
4
NC
GND
5
NC
GND
6
Rdim+
Dimmer current output /Voltage sense
Datasheet
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CDM10VD
Flexible 0-10V Dimming Solution
Functional Description
3
Functional Description
Typical Application Circuit
Figure 2
Typical Application Circuit
Note:
The Diode marked with * is for the protection of the Rdim+-Pin when active dimming is used. This is
because the voltage on this Pin is not allowed to be higher than VCC+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).
Note:
The capacitor connected to the Rdim+-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.
Datasheet
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CDM10VD
Flexible 0-10V Dimming Solution
Functional Description
Recommended cooling area
In order to guarantee the full functionality of the CDM10VD device, the required cooling area has to be selected
according to the graph in Figure 3.
Figure 3
Datasheet
Cooling area over ambient temperature CDM10VD
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CDM10VD
Flexible 0-10V Dimming Solution
Functional Description
Dimming Characteristic
Table 2
PWM Output current referring to Rdim+-Pin nominal Voltage
Rdim+
Iout
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