Digital controller 38-Pin TSSOP T/R

The 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.

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 MO

Configurable gain value: x 1 or x 4

Integrated microcontroller

Advanced STM8® core with Harvard architecture and 3-stage pipeline

Max. f_CPU: 16 MHz

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

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.