The Melexis MLX81106/7/8/9, LIN RGB slave controller provides a single-chip solution for driving up to four LEDs (RGB+1) via constant current sources in automotive ambient lighting applications. Every output can be programmed to a maximum current of 30 mA through the built-in Flash memory.
The combination of physical layer LIN transceiver and LIN protocol controller in combination with easy-to-configure switch inputs and PWM outputs make it possible to develop, in a short timeframe, simple but powerful and cheap switch slave nodes for LIN bus systems.
Each MLX81106/7/8/9 has a 16-bit RISC MCU with 24 K to 32 K of user Flash, 1 K of RAM, and up to 384 Byte of EEPPOM with ECC. The MLX81106/8 support four I/Os, whereas the MLX81107/9 support twelve I/Os. There are four programmable, constant-current, high-voltage-capable I/Os and four times 16-bit PMS outputs. All parts are SAE J2602 automobile certified with an operating temperature range of -40°C to 125°C.
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- I/O configuration
- Up to twelve I/Os (MLX81107/9) or four I/Os (MLX81106/8)
- Four programmable, constant-current (max. 30 mA), high-voltage-capable I/Os
- Four times 16-bit PWM outputs
- Interrupt-capable inputs
- 10-bit ADC with integrated pre-divider connected to all I/Os
- Battery and LED threshold voltage monitor via ADC
- Can be used for aging and temperature compensation of LEDs
- Integrated temperature sensor for thermal management
- Configurable wake up sources (LIN and I/Os)
- Serial peripheral interface (SPI)
- Voltage output for supply external 5 V loads via NPN transistor (MLX81107)
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- Application controller
- Internal RC-oscillator (12 Mhz to 24 Mhz programmable)
- 16-bit RISC MCU with 24 K to 32 K user Flash, 1 K RAM, and up to 384 Byte EEPROM with ECC
- LIN protocol controller according to LIN 2.x and SAE J2602
- Baudrate up to 19.2 kBd
- Frame processing
- Low interrupt load to the application
- LIN transceiver according to LIN 2.x and SAE J2602
- Support for autoconfig according bus shunt
- Voltage regulator
- Low standby current consumption of 25 µA (typ.) (max. 30 µA) in sleep mode
- Over-temperature shutdown, 40 V load dump protected
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