Automotive Power Reference Design for Infotainment Systems
Description
This reference design shows a complete power tree for automotive infotainment systems. The LM74700-Q1 provides reverse battery protection to the system and provides immunity to automotive transients specified in ISO 7637-2 and ISO 16750-2. The pre-booster with LM5150-Q1 provides a stable supply voltage of 10.5V during cranking for the dual-synchronous buck converter with LM5140-Q1: that provides an output voltage of 3.3V for a load current of 6.0A and an output voltage of 7.5V for a load current of 2.5A.
Features
- Automotive power system reference designSupports input voltage down to 3.2VReverse polarity protectionAutomotive transient immunity to ISO 7637-2 and ISO 16750-2 testsSmall form factor
Applications
- Automotive radio tuner
- Automotive head unit
- Hybrid instrument cluster
- Locator/tracker
- Rear seat entertainment
- Reconfigurable instrument cluster
- Head-up display
- Digital cockpit processing unit
- Voltage conditioning module
- Entry level instrument cluster
- Virtual engine sound system (VESS)
- Transparent window display
- 2-wheeler & 3-wheeler HMI & display
Product Categories
- Power management