Microchip announces from the Embedded World conference in Germany a new family of 8-bit PIC® Microcontrollers (MCUs) with the
PIC16(L)F1769 family. This is the first PIC MCU family to offer up to two independent closed-loop channels. This is achieved with the addition of the Programmable Ramp Generator (PRG), which automates slope and ramp compensation, and increases stability and efficiencies in hybrid power conversion applications. The PRG provides real-time, down to the nanosecond, responses to a system change without CPU interaction for multiple independent power channels. This gives customers the ability to reduce latency and component counts while improving system efficiency.
Watch a short product/demo video:
The PIC16(L)F1769 family includes intelligent analogue and digital peripherals, including tri-state op amps, 10-bit Analogue-to-Digital Converters (ADCs), 5- & 10-bit Digital-to-Analogue Converters (DACs), 10- and 16-bit PWMs, and high-speed comparators, in addition to two 100 mA high-current I/Os. The combination of these integrated peripherals helps to support the demands of multiple independent closed-loop power channels and system management, while providing an 8-bit platform that simplifies design, enables higher efficiency and increased performance while helping to eliminate many discrete components in power-conversion systems. In addition to power-conversion peripherals, these PIC MCUs have a unique hardware-based LED dimming control function enabled by the interconnections of the Data Signal Modulator (DSM), op amp and 16-bit PWM. The combination of these peripherals creates a LED-dimming engine synchronising switching control and eliminating LED current overshoot and decay. The synchronisation of the output switching helps to smooth dimming, minimise colour shifting, increase LED life and reduce heat. This family also includes Core Independent Peripherals (CIPs) such as the Configurable Logic Cell (CLC), Complementary Output Generator (COG) and Zero Cross Detect (ZCD). These CIPs take 8-bit PIC MCU performance to a new level, as they are designed to handle tasks with no code or supervision from the CPU to maintain operation, after initial configuration.