Rohm - Advanced 12 Channel Constant Current LED Driver IC - BD18378EFV-M

Rohm – Advanced 12 Channel Constant Current LED Driver IC – BD18378EFV-M

The BD18378EFV-M is a serial input controlled constant current LED driver with 8 V output rating. 6 bit current calibration is available for each output while a selected PWM input performs dimming on the corresponding output. The BD18378EFV-M is able to perform diagnostic (open / short / temperature) checks to detect LED failure and over temperature on chip. Fault detection is performed also during LED deactivated state. The settings of all internal registers can be read out to verify written information at any time.

Features

AEC-Q100 Qualified ^(Note1)
Current capability: 50mA per output channel.
4-line SPI Control.
External resistor current setting.
Limp Home capability.
PWM dimming 0.2-99.2% at 200Hz
Diagnostic of all PWM inputs.
Programmable output mapping to each PWM input.
6 Bit LED brightness adjustment on each channel.
Diagnostic output on LED OPEN and SHORT for each channel during PWM on & off time.
True LED voltage measurement.
Over Temperature Protection and Thermal Feedback.
Open Drain Fault indicator.
Read-back of all register settings.
Outputs can be connected in parallel to achieve more than 50mA into the load.
Slew Rate limited switching reduces radiated Noise (EMI).
Daisy chain compatible.