L99MM70XPTR STMicroelectronics

L99MM70XP Integrated microprocessor driven device intended for LIN controlled exterior mirrors Features 5 V low-drop voltage regulator (150 mA max.) PowerSSO-36 Embedded LIN transceiver: 2.0/2.1 compliant and SAEJ2602 compatible Independent control of mirror adjustment Charge pump output for active reverse polarity motors protection via an external N-channel MOSFET One full bridge for 3 A load (R =300 m) STM standard serial peripheral interface for on control and diagnosis Two (three) half bridges for 0.5 A load (R =1.6 ) INH input for external CAN transceiver on One configurable high-side driver for up to 1.5 A load (R = 500 m / 10 Watt bulb Applications on control, or 1600 m / LED control) LIN controlled mirror Two high-side driver for 0.5 A load (R =1600m) on Description One low-side driver 0.5 A load (R =1600m) used as half bridge with high- on The L99MM70XP is a microcontroller driven side driver for independent mirror axis control multifunctional system ASSP dedicated for LIN controlled wing mirror applications. The device One high-side driver for 6 A load contains a voltage regulator to supply the (R =90m ) on microcontroller and a LIN2.1 physical layer. Up to One high-side driver for 0.5 A load 3 DC motors and five grounded resistive loads (R =1600m) to supply an external on can independently be driven with four (five) half MOSFET to drive an EC-glass bridges and five high-side driver. The EC-glass Integrated EC glass control via an external control block provides overvoltage protection with MOSFET with fast discharge path: EC-glass a fast discharge path versus GND and a negative can be discharged to GND or to -1 V discharge path for future EC-glass characteristics. The integrated ST SPI controls all operation Programmable soft start function to drive loads modes (forward, reverse, brake and high- with higher inrush currents (>6 A, >1.5 A) impedance) and provides all the diagnostic Very low current consumption modes information. All outputs short-circuit and overtemperature protected Table 1. Device summary Two thermal shutdown thresholds and early Order codes temperature warning Package Tube Tape and reel Current monitor output for all high-side drivers Open-load diagnostic for all outputs PowerSSO-36 L99MM70XP L99MM70XPTR Overload diagnostic for all outputs 3 PWM control signals for all outputs September 2013 Doc ID 022637 Rev 2 1/68 www.st.com 1Contents L99MM70XP Contents 1 Block diagram 8 2 Pin definitions and functions 9 3 Description 12 3.1 Voltage regulator . 12 3.2 Power control in operating modes 13 3.2.1 Active mode . 13 3.2.2 Flash mode 13 3.2.3 V mode . 14 CC-standby 3.2.4 V mode 14 BAT-standby 3.3 Wake-up events 14 3.4 Functional overview (truth table) . 15 3.5 Interrupt 16 3.6 Time-out watchdog 17 3.7 Passive mode 18 3.8 Reset output (NRES) 18 3.9 V fail . 19 CC 3.10 Output drivers OUT1 OUT9 . 19 3.10.1 Load condition 19 3.10.2 Current monitor . 19 3.10.3 PWM inputs 19 3.10.4 Cross current protection 20 3.10.5 Programmable soft start function 20 3.11 Controller for electrochromic glass . 21 3.12 LIN bus interface . 22 3.12.1 General features 22 3.12.2 LIN error handling . 22 3.12.3 Wake-up (from LIN bus) . 22 3.13 Serial peripheral interface (ST SPI standard) 23 4 Protection and diagnosis 26 4.1 Power supply fail . 26 2/68 Doc ID 022637 Rev 2