STLUX385A

            STLUX385A
                    STMicroelectronics presents the world's first  universal digital controller for lighting and power-conversion applications
    

Image of STMicroelectronics' STLUX385A STMicroelectronics' STLUX385A device is part of the STLUX^™ family of STMicroelectronics^® digital devices tailored for lighting and power-conversion applications. The STLUX385A has been successfully integrated in a wide range of architectures and applications, starting from simple buck converters for driving multiple LED strings, boost for power factor corrections, half-bridge resonant converters for high-power dimmable LED strings and up to full-bridge controllers for HID lamp ballasts.

Key Features

6 programmable PWM generators (SMEDs) (state machine event driven)
- 10 ns event detection and reaction
- Max.1.3 ns PWM resolution
- Single, coupled and two coupled, operational modes
- Up to 3 internal/external events per SMED
DALI (digital addressable lighting interface)
- Interrupt-driven hardware encoder
- Bus frequency: 1.2, 2.4 or 4.8 kHz
- IEC 60929 and IEC 62386 compliant plus 24-bit frame extension
- Configurable noise rejection filter
- Reverse polarity on Tx/Rx lines
4 analog comparators
- 4 internal 4-bit references
- 1 external reference
- Less than 50 ns propagation time
- Continuous comparison cycle
8 analog-to-digital converters (ADCs)
- 10-bit precision, with operational amplifier to extend resolution to 12-bit equivalent
- Sequencer functionality
- Input impedance: 1 MΩ
- Configurable gain value: x 1 or x 4
Memories
- Flash and E²PROM with read while write (RWW) and error correction code (ECC)
- Program memory: 32 Kbytes Flash; data retention 15 years at 85°C after 10 kcycles at 25°C
- Data memory: 1 Kbyte true data E²PROM; data retention:15 years at 85°C after 100 kcycles at 85°C
- RAM: 2 Kbytes
- ROM: 2 Kbytes

Integrated microcontroller
- Advanced STM8^® core with Harvard architecture and 3-stage pipeline
- Max. f_CPU: 16 MHz
Clock management
- Internal 96 MHz PLL
- Low-power oscillator circuit for external crystal resonator or direct clock input
- Internal, user-trimmable 16 MHz RC and low-power 153.6 kHz RC oscillators
- Clock security system with clock monitor
Basic peripherals
- System and auxiliary timers
- IWDG/WWDG watchdog, AWU, ITC
Reset and supply management
- Multiple low-power modes (wait, slow, auto-wakeup, Halt) with user-definable clock gating
- Low consumption power-on and power-down reset
I/O
- 12 multifunction bidirectional GPIO with highly robust design, immune against current injection
- 6 fast digital input DIGIN, with configurable pull-up
Communication interfaces
- UART asynchronous with SW flow control
- I²C master/slave fast-slow speed rate
Operating temperature
- -40°C up to 105°C