The invention discloses a constant-current and constant-voltage driving chip for a vehicle. The constant-current and constant-voltage driving chip comprises an LIN bus communication control module, an MCU microcontroller module, a PMU power management module, a constant-current output control module, a constant-voltage output control module, an output resistance control module, a FLASH memory module and an RAM module. Through the constant-voltage output control module and the constant-current output control module which are novel in structure and the output resistance control module, constant-current driving can be realized on a single chip, and the constant-current driving circuit can be used for various vehicle lighting applications, and constant-voltage driving controlled by PMW (Pulse Width Modulation) generated by an MCU (Microprogrammed Control Unit) can be realized, and the constant-current driving circuit can be used for various vehicle motors.
本发明公开了一种车用恒流恒压驱动芯片,包括:LIN总线通讯控制模块、MCU微控制器模块、PMU电源管理模块、恒流输出控制模块、恒压输出控制模块、输出电阻控制模块、FLASH存储器模块和RAM模块。本发明通过结构新颖的恒压输出控制模块和恒流输出控制模块,以及输出电阻控制模块,可实现在在单一芯片上即可以实现恒流驱动,用于各类车用照明应用,又可以实现由MCU产生PMW控制的恒压驱动,用于各类车用电机应用。
Constant-current and constant-voltage driving chip for vehicle
车用恒流恒压驱动芯片
2025-01-14
Patent
Electronic Resource
Chinese
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