Description
The L99MM70XP is a microcontroller driven multifunctional system ASSP dedicated for LIN controlled wing mirror applications. The device contains a voltage regulator to supply the microcontroller and a LIN2.1 physical layer. Up to 3 DC motors and five grounded resistive loads can independently be driven with four (five) half bridges and five high-side driver. The EC-glass control block provides overvoltage protection with a fast discharge path versus GND and a negative discharge path for future EC-glass characteristics. The integrated ST SPI controls all operation modes (forward, reverse, brake and highimpedance) and provides all the diagnostic information.

Features
■ 5 V low-drop voltage regulator (150 mA max.)
■ Embedded LIN transceiver: 2.0/2.1 compliant and SAEJ2602 compatible
■ Independent control of mirror adjustment motors
■ One full bridge for 3 A load (Ron = 300 m)
■ Two (three) half bridges for 0.5 A load (Ron = 1.6 )
■ One configurable high-side driver for up to 1.5 A load (Ron = 500 m/ 10 Watt bulb control, or 1600 m / LED control)
■ Two high-side driver for 0.5 A load (Ron = 1600 m)
■ One low-side driver 0.5 A load (Ron = 1600 m) used as half bridge with high- side driver for independent mirror axis control
■ One high-side driver for 6 A load (Ron = 90 m)
■ One high-side driver for 0.5 A load (Ron = 1600 m) to supply an external MOSFET to drive an EC-glass
■ Integrated EC glass control via an external MOSFET with fast discharge path: EC-glass can be discharged to GND or to -1 V
■ Programmable soft start function to drive loads with higher inrush currents (>6 A, >1.5 A)
■ Very low current consumption modes
■ All outputs short-circuit and overtemperature protected
■ Two thermal shutdown thresholds and early temperature warning
■ Current monitor output for all high-side drivers
■ Open-load diagnostic for all outputs
■ Overload diagnostic for all outputs
■ 3 PWM control signals for all outputs
■ Charge pump output for active reverse polarity protection via an external N-channel MOSFET
■ STM standard serial peripheral interface for control and diagnosis
■ INH input for external CAN transceiver

Applications
■ LIN controlled mirror