ROHM BD18398EUV-ME2 LED Driver, 5 → 45 V 2A 48-Pin HTSSOP

The ROHM 3 channel synchronous buck DC/DC LED driver utilizes an on time topology, supporting a near fixed switching frequency and fast switching duty regulation. It employs an average LED current feedback buck topology for precise LED current regulation across a wide input and LED output range. This driver supports individual 10 bit analogue dimming and 10 bit PWM dimming, programmable via a 10 bit register through SPI.

AEC-Q100 qualified
ISO 26262 process compliant to support ASIL B
On time topology for near fixed frequency switching
Average LED current regulation
Protection diodes less for current sense pins
Cycle by cycle switch over current protection
Thermal shutdown
Thermal sensor reading
Serial peripheral interface