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BD9486F 데이터시트 - ROHM Semiconductor

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BD9486F

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37 Pages

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857.3 kB

제조사
ROHM
ROHM Semiconductor ROHM

General Description
BD9486F is a high efficiency driver for white LEDs and is designed for large LCDs. BD9486F has a boost DCDC converter that employs an array of LEDs as the light source.
BD9486F has some protect functions against fault conditions, such as over-voltage protection (OVP), over current limit protection of DCDC (OCP), LED OCP protection, and Over boost protection (FBMAX). Therefore it is available for the fail-safe design over a wide range output voltage.


FEATUREs
■ DCDC converter with current mode
■ VOUT discharge function at shutdown
■ LED protection circuit (Over boost protection, LED OCP protection)
■ Over-voltage protection (OVP) for the output voltage Vout
■ Adjustable soft start
■ Adjustable oscillation frequency of DCDC
■ Wide range of analog dimming 0.2V to 3.0V
■ UVLO detection for the input voltage of the power stage


APPLICATIONs
■ TV, Computer Display, LCD Backlighting

 

 

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