Fan Management Solutions Microchip Technology offers design engineers a broad portfolio of products for Fan Speed Control (FSC) and Fan Fault Detection Solutions. The dedicated fan controller products are ideal for analog engineers since there is no firmware development required resulting in faster time to market. Some of these devices also feature onboard temperature sensor options in small space saving packages such as MSOP and SOT-23. For additional specialized requirements, flexibility and individual control over multiple fans, Microchip’s range of small PIC® microcontrollers enables designers to customize designs to meet their requirements. Fan fault detection/prediction only? Dedicated Fan Controllers No FSC + Integrated Temperature Sensor? Yes Microchip Fan Management Solutions Start Here No FSC + SMBusTM Interface? Yes No Yes TC670 TC650 TC654 – Dual Fan TC642 & TC642B FanSense™ technology, Programmable Threshold Over temperature alert FanSense™ technology, RPM data FanSense™ technology, Minimum speed control TC655 – Dual Fan TC646 & TC646B TC651 Over temperature alert, Auto-shutdown FanSense™ technology, RPM data, Over temperature alert TC652 TC664 – Single Fan TC647 & TC647B FanSense™ technology, RPM data FanSense™ technology, Minimum speed control FanSense™ technology, Over temperature alert TC653 TC665 – Single Fan FanSense™ technology, Over FanSense™ technology, RPM temperature alert, Auto-shutdown data, Over temperature alert TC648 & TC648B Over temperature alert, Auto-shutdown TC649 & TC649B Small Microcontroller Solutions Program Memory (bytes) FanSense™ technology, Auto-shutdown FanSense™ technology, Auto-shutdown RAM EEPROM (bytes) (bytes) Sense Peripherals Communication Peripherals Control Peripherals 8-Pin PIC Microcontrollers 25/41 64 64 – 128 128 – 1x Compare – – PIC12F675 768/1536 1792 1792 1x Compare, 4x 10-bit A/D PIC12F683 3584 128 256 1x Compare, 4x 10-bit A/D – – PIC12C508/509 PIC12F629 – – – Capture Compare PWM 14-Pin PIC Microcontrollers PIC16F630 1792 64 128 1x Compare – PIC16F676 1792 64 128 1x Compare, 8x 10-bit A/D PIC16F684 3584 128 256 2x Compare, 8x 10-bit A/D – – Enhanced Capture Compare PWM – – 18/20-Pin PIC Microcontrollers 3584 128 – 4x 8-bit A/D – Enhanced Capture Compare PWM PIC16F627A/628A 1792/3584 224/224 128/128 2x Compare – Capture Compare PWM PIC16F818/819 1792/3584 128/256 128/256 5x 10-bit A/D I2C™, SPI Interface Capture Compare PWM PIC16F716 Microchip Technology Incorporated Additional Information Application Notes: • AN764 - Implementing Temperature-Based Variable Fan Speed Control in NLX Power Supplies, DS00764 • AN768 - Redundant Fan Systems Using the TC647 Fan Manager, DS00768 • AN770 - Linear Voltage Fan Speed Control Using Microchip’s TC64X Family, DS00770 • AN771 - Suppressing Acoustic Noise in PWM Fan Speed Control Systems, DS00771 • AN772 - Speed Error in PWM Fan Control Systems, DS00772 • AN893 - Low-cost Bidirectional Brushed DC Motor Control using the PIC16F684, DS00893 Technical Briefs: • TB063 - An Integrated Fan Speed Control Solution Can Lower System Costs, Reduce Acoustic Noise, Power Consumption and Enhance System Reliability, DS91063 • TB064 - Intelligent Thermal Management Using Brushless DC Fans, DS91064 Design Guides: • Fan Control Function Pack Design Guide - This 8-page booklet gives diagrams and design examples for a number of applications that extend fan life, reduce acoustic noise, minimize power consumption and increase system uptime. (DS21835) • PICmicro® CCP and ECCP Tips ‘n Tricks - The ECCP and CCP modules on the PIC® microcontrollers are capable of performing a wide variety of tasks. This document describes some of the basic guidelines to follow when using these modules in each mode, as well as give suggestions for practical applications. (DS41214) Demonstration/Evaluation Boards and User Guides: Microchip offers a number of boards, along with User Guides, to help evaluate device families. Contact your local Microchip Sales Office for more information. • TC642 Fan Control Demo Board - This fan control circuit board allows the user to quickly evaluate and prototype Microchip’s TC64X and TC64XB Pulse Width Modulation (PWM) Fan Control ICs. (User’s Guide, DS21401) • TC642 Fan Control Evaluation Board - This fully assembled 4″ x 6″ circuit board allows the user to evaluate and prototype fan control circuits based on Microchip’s TC64X and TC64XB DC brushless fan controllers. (User’s Guide, DS21403) • TC650 Fan Control Demo Board - An evaluation tool that allows the user to quickly prototype fan control circuits based on Microchip’s TC650 or TC651 Pulse Width Modulation (PWM) Fan Control ICs. (User’s Guide, DS51304) • TC652 Fan Control Demo Board - An evaluation tool that allows the user to quickly prototype fan control circuits based on Microchip’s TC652 or TC653 Pulse Width Modulation (PWM) Fan Control ICs. (User’s Guide, DS21506) • TC670 Fan Speed Sensor Demo Board - An evaluation tool that provides an optimal way to evaluate the TC670 integrated fan speed sensor. (User’s Guide, DS51273) General: • 2006 Product Line Card, DS00890 • Microchip Product Selector Guide, DS00148 • Stand-Alone Analog and Interface Solutions, DS21060 Samples/Purchasing Information • Online Sampling: www.sample.microchip.com • Online Purchasing: www.microchipdirect.com • Technical Training: www.microchip.com/training www.microchip.com/analog Visit our web site for additional product information and to locate your local sales office. Microchip Technology Inc. • 2355 W. Chandler Blvd. • Chandler, AZ 85224-6199 Information subject to change. The Microchip name and logo, the Microchip logo, PIC and PICmicro are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. All other trademarks mentioned herein are property of their respective companies. © 2006, Microchip Technology Incorporated. All Rights Reserved. Printed in the U.S.A. 8/06 DS21852B *DS21852B*