TLD1124EL_15 Datasheet, PDF (26/29 Pages) Marl International Limited – Basic LED Driver

TLD1124EL
Application Information
10
Application Information
Note: The following information is given as a hint for the implementation of the device only and shall not be
regarded as a description or warranty of a certain functionality, condition or quality of the device.
Light
module
V_BATT
C mo d=2 .2µF
IS O- P u lse
protection circuit
depending on
re q u ir e m e n ts
Microcontroller
(e.g. XC866)
C VS=4 .7n F
VS
Internal
supply
DEN _Diagnosis
enable
Thermal
protection
Output
control
OUT
4.7nF**
OUT
R_SET
IN_SET Current
adjust
Basic LED Driver
Status
ST
GND
IN
Eventually to other
470kΩ*
Basic LED Driver
C_ST=100pF** _{* In case PWM via VS is performed.}
** For EMI improvement, if required.
Figure 19 Application Diagram
Note: This is a very simplified example of an application circuit. In case of high ISO-pulse requirements a reverse
protection diode may be used for LED protection. The function must be verified in the real application.
10.1
Further Application Information
• For further information you may contact http://www.infineon.com/
Data Sheet
26
Rev. 1.0, 2013-08-08