bd6581gu ROHM Co. Ltd., bd6581gu Datasheet - Page 18

• Manufacturer Part Number: bd6581gu
• Description: White Backlight Led Driver
• Manufacturer: ROHM Co. Ltd.

●Attention point of board layout
●About heat loss
BD6581GU
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In board pattern design, the wiring of power supply line should be low Impedance, and put the bypass capacitor if necessary.
Especially the wiring impedance must be lower around the DC/DC converter.
In heat design, operate the DC/DC converter in the following condition.
(The following temperature is a guarantee temperature, so consider the margin.)
1. Periphery temperature Ta must be less than 85
2. The loss of IC must be less than dissipation Pd.
o
C.
18/26
2010.03 - Rev.A
Technical Note