Overview
The L99MM70XPTR, produced by STMicroelectronics, is a microcontroller-driven multifunctional system ASSP (Application-Specific Standard Product) designed specifically for LIN (Local Interconnect Network) controlled wing mirror applications. This device integrates a variety of functions necessary for the control and operation of exterior mirrors in automotive systems.
It includes a voltage regulator, an embedded LIN transceiver compliant with LIN 2.0/2.1 and SAE J2602, and multiple output drivers for controlling DC motors and resistive loads. The device also features advanced diagnostic and protection mechanisms, ensuring reliable and efficient operation.
Key Specifications
| Parameter | Description |
|---|---|
| Package | PowerSSO-36 |
| Voltage Regulator | 5 V, 150 mA max. |
| LIN Transceiver | LIN 2.0/2.1 compliant, SAE J2602 compatible |
| Output Drivers |
|
| EC Glass Control | Integrated EC glass control via an external MOSFET with fast discharge path |
| Protection Features | All outputs short-circuit and overtemperature protected, two thermal shutdown thresholds, early temperature warning |
| Diagnostic Features | Current monitor output for all high-side drivers, open-load diagnostic, overload diagnostic |
| PWM Control | Three PWM control signals for all outputs |
| Interface | STM standard serial peripheral interface (SPI) for control and diagnosis |
Key Features
- Embedded LIN transceiver compliant with LIN 2.0/2.1 and SAE J2602
- Independent control of mirror adjustment motors
- Multiple output drivers for DC motors and resistive loads
- Programmable soft start function to drive loads with higher inrush currents
- 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 and overload diagnostic for all outputs
- Three 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 (SPI) for control and diagnosis
Applications
The L99MM70XPTR is primarily designed for LIN controlled wing mirror applications in the automotive sector. It is suitable for controlling and operating various functions of exterior mirrors, including mirror adjustment, heating, and electrochromic glass (EC-glass) control.
Q & A
- What is the primary application of the L99MM70XPTR?
The L99MM70XPTR is designed for LIN controlled wing mirror applications in the automotive sector.
- What type of LIN transceiver is integrated into the L99MM70XPTR?
The device includes an embedded LIN transceiver compliant with LIN 2.0/2.1 and SAE J2602.
- What are the key output drivers available in the L99MM70XPTR?
The device features one full bridge for 3 A load, two (three) half bridges for 0.5 A load, and several high-side drivers with varying current capacities.
- Does the L99MM70XPTR have built-in protection mechanisms?
- How does the L99MM70XPTR control EC glass?
The device provides integrated EC glass control via an external MOSFET with a fast discharge path.
- What diagnostic features are available in the L99MM70XPTR?
The device includes current monitor output for all high-side drivers, open-load diagnostic, and overload diagnostic.
- Does the L99MM70XPTR support PWM control?
- What interface is used for control and diagnosis in the L99MM70XPTR?
The device uses the STM standard serial peripheral interface (SPI) for control and diagnosis.
- What is the package type of the L99MM70XPTR?
The device is packaged in PowerSSO-36.
- Does the L99MM70XPTR have a voltage regulator?
