EBV Chips

The L9924L is a controlled multifunctional alternator regulator intended to be used for commercial and agricultural vehicles. It supports 24 V System. The control can be achieved through different communication protocol: LIN, RCV, PCM, C_term, BSS. It is a System-In-Package solution with smart power alternator regulator IC and 8-bit microcontroller (non-monolithic approach). It includes the control section, fault diagnostic circuit which drives a warning lamp, and the protection against short circuits. This device regulates in close loop the output of an automotive generator by controlling the field winding current by means of a Pulse-Width Modulation (PWM) of an external high side or low side driver at fixed frequency.

• System in package smart power alternator regulator and 8-bit microcontroller (nonmonolithic approach)
• Protected high/low side field pre-driver for external MOS
• Field short circuit protection
• Regulated voltage driven by ECU (programmable protocol driven)
• Regulated voltage thermally compensated (without protocol)
• Lamp driver (wake up and warning detection)
• Diagnostic via LIN
• 24 V Systems
• Self start function
• Load response control (LRC)
• Field monitor (FM) output
• Thermal shutdown
• Package TQFP44EP 10x10