General Description
BD9470AEFV and BD9470AFM are high efficiency driver for white LED. They are designed for large sized LCD. BD9470AEFV and BD9470AFM are built-in DCDC converter that supply appropriate voltage for light source.
BD9470AEFV and BD9470AFM are also built-in protection function for abnormal state such as OVP: over voltage protection, OCP: over current limit protection of DCDC, SCP: short circuit protection, open detection of LED string.
Thus they are used for conditions of large output voltage and load conditions.

FEATUREs
■ 6ch LED constant current driver
■ LED maximum output current 250mA
■ Individual PWM dimming modulation allowed for
   LEDs
■ ±2% LED current accuracy (when each LED is set
   to 130mA)
■ Built-in LED feedback voltage automatic adjustment
   circuit according to LED current
■ Built-in start-up circuit independent of PWM light
   modulation
■ built-in VOUT・ FB voltage maintenance function
   when PWM=Low（0%）
■ Built-in LED current stabilization circuit while
   scanning operation is performed
■ Built-in VOUT discharge circuit while shutdown
■ Built-in LED protection (OPEN / SHORT protection)
■ Individual detection and individual LED OFF for
   both open and short circuit
■ Adjustable LED short-circuit protection threshold
■ PWM-independent LED protection
■ VOUT over voltage protection (OVP) and reduced
   voltage protection (SCP) circuit
■ Built-in failure indication function
■ Built-in ISET pin short-circuit protection circuit

APPLICATIONs
■ LED driver for TV, monitor and LCD back light