Reference design for automotive cluster driver notification functions
Description
This reference design implements power and driver notification functions typically found in an automotive instrument cluster. The design features reverse battery protection: a pre-boost stage to support cold-crank battery voltage conditions down to 3.5 volts: buck regulators for 3.3-V and 5-V supplies: an audio amplifier circuit to provide notifications: an LED backlight supply with automated brightness control and LED drivers with flexible diagnostic functions for tell-tale LEDs.
Features
- Wide Vin range supports cold cranking to 3.5V and load dump to 40VTell-tale LED drivers with configurable fault diagnostics5V: single rail audio amplifier for chime and warningAdjustable ambient backlight brightness with light sensorLow loss reverse battery protection for reduced power dissipation
Applications
- Hybrid instrument cluster
- Reconfigurable instrument cluster
- Entry level instrument cluster
- Commercial vehicle instrument cluster
- 2-wheeler & 3-wheeler HMI & display
Product Categories
- Power management