BD9206EFV Datasheet, PDF (8/13 Pages) Rohm – Simple Structure Constant Current Backlight Driver for LCD panels (Non-step type)

BD9206EFV
●Recommendation of Circuit figure
Technical Note
When you use VCC=24V ILED=20mA
Fig..8
Variety
Resistance
Symbol
R1～R6
Usage
For reducing IC thermal loss
capacitor
CVCC
CVREG
For input by-pass capacitor
For VREG phase compensation
Type
MCR03Series15R0
GMR55DB31H106
GMR188R71A105
Maker
ROHM
murata
murata
Value
Unit
15Ω
10uF
1uF
●The points of manufacturing substrate
For this IC, at the time of LED lighting, the temperature of the package increases due to heat generation of the constant
current driver.
Therefore, please bring the radiating fin on the back side of the package down to the GND with wide substrate pattern in
order to promote heat radiation.
In addition, the heat radiation can be further promoted by putting a thermal VIA in.
The heat radiation can be promoted similarly by connecting the unconnected terminals, TEST terminals and unused
terminals of LED1~6 to GND.
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8/12
2009.07 - Rev.A