Automotive LED drivers for instrument cluster backlights

Update: August 11, 2023
Automotive LED drivers for instrument cluster backlights

The parts (table below) include 20,000:1 PWM dimming and dc dimming in a way which “eliminates flickering when changing display brightness from low to high”, according to the company.

Switching can be between 200kHz and 2.4MHz, and operation is over -40 to +125°C)

Qualification is AEC-Q100.

Part Input
range
Channel
count
Max
drive
mA/chan
Boost
FET
Dimming Package
(mm)
1:20,000
PWM
dc
BD83A04EFV-M 4.5 to
48V
4 120 Built-in 7.8 x 7.6 x 1
HTSSOP-B24
BD83A14EFV-M 150 External
BD83A14MUF-M
under
development
4 x 4 x 1
VQFN24FV4040
BD82A26MUF-M 3.0 to
48V
6 150 External 5 x 5 x 1
VQFN32FBV050

There are multiple development boards to go with the ICs: REFLED002, REFLED004, and REFLED003 (pictured) – the latter coming in two flavours depending on the built-in mosfet.

Product pages are not available at the time of writing.

View more : IGBT modules | LCD displays | Electronic Components