General Description
BD9479FV is a high efficiency driver for white LEDs and designed for large LCDs. This IC is built-in a boost DCDC converters that employ an array of LEDs as the light source. BD9479FV has some protect function against fault conditions, such as the over-voltage protection (OVP), the over current limit protection of DCDC (OCP), the short circuit protection (SCP), the open detection of LED string. Therefore BD9479FV is available for the fail-safe design over a wide range output voltage.

FEATUREs
■ 8ch LED constant current driver (external PNP Tr
   Type)
■ Maximum LED setting current 500mA (VREF pin
   setting)
■ Build-in DC/DC converter
■ Analog Dimming (Linear) function
■ Individual channel PWM Dimming function
■ LED protection function (Open Short protection)
   [PWM-independent Type]
■ Output short protection (OVP)
■ Built-in Timer latch function (CP)
■ Built-in under voltage Lockout function (UVLO)・ over
   voltage protection (OVP)
■ Built-in FAIL indication function
■ Built-in OVP voltage Feedback function
■ Built-in PWM-independent soft start circuit
■ SSOP-B40 Package

APPLICATIONs
   TV, Computer Display, Notebook, LCD Backlighting