L99PM72GXPTR STMicroelectronics

L99PM72GXP Advanced power management system IC with embedded LIN and high speed CAN transceiver supporting CAN Partial Networking Datasheet production data 5 fully protected high-side drivers with internal 4-channel PWM generator 2 low-side drivers with active Zener clamping 4 Internal PWM timers 2 operational amplifiers with rail-to-rail outputs * 3*&)7 (V ) and low voltage inputs PowerSSO-36 S Temperature warning and thermal shutdown Features Two 5 V voltage regulators for microcontroller Applications and peripheral supply Automotive ECU s such as door zone and body No electrolytic capacitor required on regulator control modules description outputs Ultra low quiescent current in standby modes Description Programmable reset generator for power-on The L99PM72GXP is a power management and undervoltage system IC providing electronic control units with Configurable window watchdog and fail safe enhanced system power supply functionality output including various standby modes as well as LIN LIN 2.1 compliant (SAEJ2602 compatible) and HS CAN physical communication layers. It transceiver contains two low drop voltage regulators to supply the system microcontroller and external Advanced high speed CAN transceiver (ISO peripheral loads such as sensors and provides 11898-2/-5 and SAE J2284 compliant) with enhanced system standby functionality with local failure and bus failure diagnosis and programmable local and remote wake up selective wake-up functionality according to capability. ISO 11898-6 In addition, five high-side drivers, two low-side Complete 3 channel contact monitoring drivers and two operational amplifiers increase interface with programmable cyclic sense the system integration level. functionality Programmable periodic system wake-up The ST standard SPI Interface (3.0) allows control feature and diagnosis of the device and enables generic software development. ST SPI interface for mode control and diagnosis Table 1. Device summary Order code Package Tube Tape and reel PowerSSO-36 L99PM72GXP L99PM72GXPTR April 2014 DocID024767 Rev 4 1/129 This is information on a product in full production. www.st.comContents L99PM72GXP Contents 1 Block diagram and pin description 10 2 Detailed description 13 2.1 Voltage regulators 13 2.1.1 Voltage regulator: V . 13 1 2.1.2 Voltage regulator: V . 13 2 2.1.3 Increased output current capability for voltage regulator V . 14 2 2.1.4 Voltage regulator failure . 16 2.1.5 Voltage regulator behavior . 17 2.2 Operating modes . 17 2.2.1 Active Mode 17 2.2.2 Flash Mode 17 2.2.3 SW-Debug Mode 18 2.2.4 V mode . 18 1 standby 2.2.5 Interrupt . 19 2.2.6 V mode . 20 Bat standby 2.2.7 Wake up from Standby Modes 20 2.2.8 Wake up inputs . 21 2.2.9 Cyclic contact supply . 22 2.2.10 Timer interrupt / wake-up of microcontroller by timer . 22 2.3 Functional overview (truth table) . 22 2.4 Configurable window watchdog 24 2.4.1 Change watchdog timing 26 2.5 Fail Safe Mode . 28 2.5.1 Single failures 28 2.5.2 Multiple failures entering forced V Mode 30 Bat standby 2.6 Reset output (NRESET) 31 2.7 Operational amplifiers . 31 2.8 LIN Bus Interface . 32 2.8.1 Error handling 32 2.8.2 Wake up (from LIN) 33 2.8.3 LIN Pull-Up 33 2.9 High speed CAN bus transceiver . 34 2/129 DocID024767 Rev 4