For the ever-increasing demand for LIN networks in the automotive electronics market, Freescale Semiconductor has introduced a new line of LIN SBCs. The series features three highly integrated, pin-compatible devices. The MC33910G5 combines power management features (which have a role in low battery discharge in low-power modes), a robust LIN physical layer and high-side drivers. In addition to these features, the MC33911G5 also features DC motor pre-drive, while the MC33912G5 provides DC motor pre-drive with current sensing. The LIN SBC series is ideal for space-constrained, electromagnetically sensitive LIN slave applications, including designs that require motor control and current monitoring. When combined with Freescale's 8-bit S08 microcontroller (MCU) or entry-level 16-bit S12 MCU, the SBC device can be used in a variety of automotive comfort applications as well as body applications. The SBC/MCU combination is widely used in door systems, power mirrors, power windows, automotive sunroofs, multi-function steering wheels, air conditioning (HVAC) and fan control, lighting control and uN network control wipers.
Freescale's LIN SBC devices have been certified by conformance test laboratories (such as C&S Group) and EMC laboratories (such as IBEE-Zwickau) for a wide range of LIN/J2602 networks. Industry certification for Freescale's LIN SBC products helps speed design, reduce development costs, and minimize testing and debugging issues.
Freescale's LIN SBC series meets stringent automotive electrical requirements. According to IEC61000-4-2, recently released SBC devices are capable of withstanding severe ESD pulses of up to ±11 kV without the need for external protection components. The device's innovative waveform shaping technology also helps achieve ultra-low electron emission. Because of the close proximity of various networked electronic systems and devices, EMC and ESD are issues that must be taken seriously in harsh automotive environments.
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About Freescale's LIN SBC products Freescale's LIN SBC devices are manufactured using SMARTMOS technology, which combines a LIN physical layer transceiver, a voltage-regulated watchdog, and other functions, such as a high-current, high-voltage output driver. The SBC integrates the many functions required for the MCU system, such as power management, physical layer interfaces, system security features, protection and diagnostics, into a single-chip IC.
Freescale and high integration, Freescale's LIN SBC products allow control units to be directly connected to motors and other loads, minimizing the need for additional connections and wiring. Diagnostic data can also be easily transferred via a LIN network, providing excellent control and system level information. Freescale's broad range of LIN products includes not only SBC devices, but also 8-bit, 16-bit and 32-bit MCUs, LIUN Slave Interface Controller (SLIC) modules, and highly integrated system-level integrated MCU and SMARTMOS analog ICs. Package (SiP) solution. Most Freescale automotive MCUs support the LIN protocol.
Features of the LIN SBC Series
   ◆ Physical layer interface certified by LIN 2.1 and J2602 ◆ Power Management - 50 mA 5V Low Dropout Linear Regulator with Low Voltage Reset - Windowed Watchdog with Prescaler - Sleep and Stop Low Power Consumption Mode - Periodic Wakeup and Sensing ◆ System Management - 4 Way Wake / High Voltage Analog / Digital Input - Switchable 5 V Hall Effect Sensor Supply - Precision Difference Amplifier with Optional Gain for Current Sensing - Battery Voltage, Wake-up Pin Voltage, and Chip Temperature Monitoring ◆ Application-Specific Drive - 2 Low-Side Relay Drivers for DC Motor Applications - 2 50 mA High-Side Switches
Development work is simple. To simplify the development of LIN network applications, Freescale offers a comprehensive, easy-to-use evaluation toolkit that enables developers to evaluate the performance of SBC products for LIN network applications. The kit includes a standard SBC evaluation board, a USB-to-SPI board, a friendly graphical interface, and a DVD to help developers get started in minutes.
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