STMicroelectronics STLUX385A Digital LED Lighting Driver
STMicorelectronics STLUX385A 数字 LED 照明驱动器是 ST MASTERLUX™ 数字器件系列产品，专门用于照明和电源转换。STLUX385A 成功集成了多种架构和应用，从用于 LED 驱动的简单降压转换器、用于功率因数校正的升压转换器、用于可调光 LED 灯串的半桥谐振转换器，一直到 HID 灯镇流器中的全桥控制、无线电源充电器及电视电源等各种应用。
SMED
SMED is a hardware state machine triggered by internal or external events. In power-supply applications, for example, a SMED can close the regulation loop and automatically switch off the circuit when it detects an overcurrent or a short circuit, protecting the circuit. Because the SMED is embedded, they guarantee an event reaction time shorter than that provided by standard interrupt-driven microprocessors.
特性
- 6 SMED-controlled PWMs to provide full control of any power conversion stage (SMED)
- Integrated DALI enabling control, communication, and monitoring functions
- Integrated digital core makes STLUX easy to use and programmable
- Customizable and load-tailored algorithms ensure high efficiency
- Fault detector improves reliability
- Single-chip solution saves space compared to discrete solutions
- Simple buck converters for LED driving
- Boost for power factor correction
- Half-bridge resonant converters for dimmable LED strings
- Full-bridge control in HID lamp ballasts
- Wireless power chargers
- TV power supplies
应用
- Simple buck converters for LED driving
- Boost for power factor correction
- Half-bridge resonant converters for dimmable LED strings
- Full-bridge control in HID lamps ballasts
- Wireless power chargers
- TV power supplies
规范
- 4 analog comparators
- 8 analog-to-digital converters (ADC)
- Integrated microcontroller with advanced STM8 core with
- Harvard architecture and 3-stage pipeline
- Flash and E2PROM with read while write (RWW) and error correction code (ECC)
- Program memory: 32Kbytes flash; data retention 15 years at 85°C after 10kcycles at 25°C
- Data memory: 1Kbyte true data E2PROM; data retention: 15 years at 85°C after 100k cycles at 85°C
- RAM: 2Kbytes
- ROM: 2Kbytes
- Internal 96MHz PLL clock management
- System and auxiliary timers
- IWDG/WWDG watchdog, AWU, ITC
- Multiple low-power modes (wait, slow, auto-wakeup, halt) with user-definable clock gating
- Low consumption power-on and power-down reset
- 12 multi-function bidirectional GPIO with highly robust design, immune against current injection
- 6 fast digital input DIGIN, with configurable pull-up
- UART asynchronous with SW flow-control
- I2C master/slave fast-slow speed rate
- -40°C to +105°C operating temperature range
Additional Resources
Development Tool
The STEVAL-ILL075V1 Evaluation Board is designed to help familiarize the user with the STLUX family of digital controllers and SMED architecture. A convenient GUI enables the user to quickly generate the optimal SMED configuration for the application. The external pins make it easy to inject SMED events and capture the SMED-controlled PWM clock, helping the user to validate the SMED configuration. Alternatively, the application circuit can be driven directly from the evaluation board.