Automotive Reverse Polarity Protection Reference Design
Description
Reverse polarity is standard protection required in an automotive environment. When battery cables are detached and reconnected there is a probability of connecting the wires to wrong terminals of the battery. This mistake could damage the components in Electronic Control Units (ECU). To avoid damage to the ECU there is a need for reverse polarity protection. Schotky diodes could be used but will have a constantly high power loss. This reference design uses the LM5050-Q1 along with n-channel mosfet to provide reverse polarity protection and reduce the power dissipation.
Features
- Reverse polarity protection for 12V/24V/48VOring controller to connect multiple batteriesImproves system efficiency and very low quiescent currentReplaces the Schottky diode and reduces the power dissipationISO7637-2 and ISO16750-2 compliant
Applications
- Gasoline engine
- Electric power steering (EPS)
- Merchant battery charger
- Seat position & fold module
- Diesel engine
- Gasoline & diesel engine platform
- Pump
- eTurbo/charger
- Engine fan
- Ignition
- Automatic transmission
- Shifter system
- Automotive HVAC compressor module
- Automotive HVAC sensor
- Automotive interior heater module
- Seat comfort module
- Seat position & comfort module
- Solar charge controller
- Wiper module
- Gesturing
- Obstacle detection sensor
- Vehicle occupant detection sensor
- Virtual engine sound system (VESS)
- Vehicle control unit (VCU)
- Electric drive
- Drive line components
- Phone as a key (PaaK)
- Fuel cell control unit (FCCU)
- Battery control unit (BCU)
- 800-V battery pack-passive balancing
Product Categories
- Power management