Introduction

Welcome to the Embedded University online! This space on the web is to help you keep track of the latest happenings in Embedded world, helping embedded system developers produce better products faster. I hope this will help you find better ways to build embedded systems and at the same time, maximizing the fun!

Wednesday, November 15, 2006

Microchip Technology Announces PIC® Microcontrollers with Internal Shunt Regulator

Microchip Technology Inc., a leading provider of microcontroller and analog semiconductors, today announced the first general-purpose, Flash PIC® microcontrollers with several peripherals for more cost-effective control of fans or small motors. The 14-pin PIC16F616/610 and the 8-pin PIC12F615/609 microcontrollers can substantially reduce system component counts and costs through the integration of specialized peripherals, such as a full-bridge Pulse-Width Modulator (PWM) with deadband control, a Timer1 Gate for pulse width measurement, a comparator for hall-effect sensor interfaces, and an A/D converter for temperature and various monitoring functions. In the case of the PIC16HV616/610 and PIC12HV615/609 variants, the addition of an internal shunt regulator allows the PIC microcontroller to run from higher voltage rails without the addition of voltage regulators.

Engineers designing small-motor control systems are always looking for ways to eliminate components and reduce board size and cost, while achieving higher levels of functionality and flexibility. For example, in cooling fans, the PIC16F616/610 and PIC12F615/609 Flash microcontrollers provide greater functionality than discrete fan-control components, such as linear speed control, improved dynamic response and the ability to customize the design with firmware changes rather than expensive hardware redesigns. At the same time, board space and cost is reduced with features such as comparator hysterisis, to allow direct interfacing to a hall-effect element without additional signal-conditioning circuitry.

Many high-voltage-rail applications, such as motor control and power supplies, require components to step down the input voltage for various control devices. However, these new PIC microcontrollers—available with an integrated shunt regulator option (designated with “HV” in the part number), allow engineers to design systems without having to add a regulator, reducing costs and board space even further. Additionally, motor and power applications often require intermediate voltages for power drivers and other power components. The PIC16F616/HV616 family addresses these requirements with a built-in S/R latch to design a switch-mode power supply for these intermediate voltages.

"Engineers who used to rely solely on analog and discrete semiconductors for their designs have discovered the flexibility and lower system cost benefits of using a PIC microcontroller,” said Steve Drehobl, vice president of Microchip’s Security, Microcontroller and Technology Development Division. “Microchip continues to lead the way in providing these engineers with new PIC microcontrollers that enable them to design compact, programmable and cost-effective applications.”

Specific application examples include: home appliances (such as blenders, toasters, smoke alarms and thermostat controls), cooling-fan control and other motor control, power tools, system control and monitoring, battery chargers, automated door sensors, speedometers, and power supplies.

Development Tools
These new microcontrollers are supported by the full suite of Microchip’s development tools, including the free MPLAB® IDE (Integrated Development Environment), the low-cost MPLAB ICD 2 (In-Circuit Debugger) and the MPLAB PM3 Universal Device Programmer.

The PICkit™ 2 Starter Kit (DV164120) enables engineers, students and anyone with an interest to easily begin development and experimentation with the PIC16F616/HV616 family for a very low initial investment of $49.99. The kit connects to any personal computer via full-speed USB 2.0, which allows faster programming and firmware upgradeability, and requires no additional power supply for the programmer or target application board.

0 Comments: