STMicroelectronics Power Management IC with Enhanced Standby Modes

The L99PM72GXP is a power management IC, offering electronic control units advanced power supply features, including diverse standby modes and LIN, HS CAN communication layers. It houses two low-dropout voltage regulators to power the system microcontroller and external peripherals, and boasts enhanced standby functionality with programmable local and remote wake-up capabilities.

• Dual 5V Voltage Regulators: Supplies power to microcontroller and peripherals
• No Electrolytic Capacitor Needed: On regulator outputs for space and cost efficiency
• Standby Mode Efficiency: Ultra-low quiescent current for power savings
• Power-On Reset Generator: Automatically resets system on power-up or undervoltage
• Watchdog Timer with Safe Output: Monitors system and ensures fail-safe operation
• LIN Transceiver: Compatible with SAEJ2602 for efficient communication
• High-Speed CAN Transceiver: Diagnoses local and bus failures, supports selective wake-up
• Contact Monitoring Interface: Monitors 3 channels with programmable cyclic sense
• System Wake-Up Feature: Programmatically triggers system wake-up periodically
• ST SPI Interface: Controls modes and diagnoses system
• High-Side Drivers: Fully protected with internal 4-channel PWM generator
• Low-Side Drivers: Active Zener clamping for enhanced protection
• Internal PWM Timers: Four timers for precise pulse width modulation
• Operational Amplifiers: Rail-to-rail outputs and low voltage inputs for optimal performance
• Thermal Shutdown: Warns and shuts down system in case of high temperatures