TC642DEMO Microchip Technology, TC642DEMO Datasheet

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... TC64X/TC64XB Fan Control Demo Board User’s Guide 2003 Microchip Technology Inc. M DS21401C ...

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... Serialized Quick Turn Programming (SQTP service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2003, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received QS-9000 quality system ...

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... System Connection For +5V Operation .......................................................... 6 Appendix A. Board Layout and Schematic A.1 Introduction ..................................................................................................... 7 A.2 Board Layout and Schematic ......................................................................... 7 Appendix B. Bill-of-Materials (BOM) B.1 Demo Board Components ............................................................................. 9 Worldwide Sales and Service 2003 Microchip Technology Inc. TC64X/TC64XB FAN CONTROL DEMO BOARD USER’S GUIDE Table of Contents ............................................................................................. 10 DS21401C-page iii ...

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... NOTES: DS21401C-page iv 2003 Microchip Technology Inc. ...

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... INTRODUCTION Thank you for purchasing the TC64X/TC64XB Fan Control Demo Board from Microchip Technology Inc. The TC64X/TC64XB Fan Control Demo Board allows the user to quickly prototype fan control circuits based on Microchip’s pulse width modulation (PWM) Fan Control integrated circuits. ...

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... Table B-1 of the Appendix B section. If any component is damaged or missing, please contact your nearest Microchip sales office, listed on the back of this publication. DS21401C-page 2 Part Number PDIP SOIC TC642BEPA TC642BEOA TC646BEPA TC646BEOA TC647VPA TC647VOA TC647BEPA TC647BEOA TC648VPA TC648VOA TC648BEPA TC648BEOA TC649VPA TC649VOA TC649BEPA TC649BEOA 2003 Microchip Technology Inc. ...

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... DS00770, Microchip Technology Inc., 2003 • AN771, “Suppressing Acoustic Noise in Pulse Width Modulation (PWM) Fan Speed Control Systems”, DS00771, Microchip Technology Inc., 2003 • AN772, “Speed Error in Pulse Width Modulation (PWM) Fan Control Systems”, DS00772, Microchip Technology Inc., 2003 ...

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... NOTES: DS21401C-page 4 2003 Microchip Technology Inc. ...

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... FE TC64X and TC64XB devices is sufficient to saturate the transistor when it is conducting the full fan current. 2003 Microchip Technology Inc. TC64X/TC64XB FAN CONTROL DEMO BOARD USER’S GUIDE SUGGESTED OUTPUT DRIVER/CURRENT SENSE VALUES VS ...

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... MOSFET (1 in the case of the BS170) enables DSON and Jumper Fan (–) Jumper (BS170 and R (See Figure A-2), in conjunction with SENSOR V NTC System Thermistor FAULT Shutdown FAN(–) GND + Fan Fan (– 2N2222A TC64X/TC64XB /V AS MIN Demo Fan Control Module 2003 Microchip Technology Inc. ...

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... Figure A-1 depicts the layout for the TC64X/TC64XB Fan Control Demo Board. Figure A-2 shows the schematic for the TC64X/TC64XB Fan Control Module SENSOR MIN FAULT FAN (–) GND FIGURE A-1: TC64X/TC64XB Fan Control Demo Board Layout 2003 Microchip Technology Inc. BOARD USER’S GUIDE + ...

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... C 4 FIGURE A-2: TC64X/TC64XB Fan Control Demo Board Schematic DS21401C-page 0.01 µF 10 µ FAULT U1 TC64X TC64XB V OUT MIN 0.1 µF 5 SENSE C F GND 4 Optional FAULT Q 4 LED 2N3906 1.2 k 470 FAULT V OUT 0.47 µ µF (Optional) GND 2003 Microchip Technology Inc. ...

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... Watt, 5% Resistor 8 U TC642/B, TC646/B, TC647/B, 1 TC648/B or TC649/B Fan Control devices 2003 Microchip Technology Inc. BOARD USER’S GUIDE Comments Power supply filter. Bypass capacitor. Bypass capacitor. PWM capacitor. Typical value is 1.0 µF (PWM frequency of 30 Hz). — SENSE input coupling capacitor. ...

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... Italy Via Quasimodo, 12 20025 Legnano (MI) Milan, Italy Tel: 39-0331-742611 Fax: 39-0331-466781 Netherlands Biesbosch 14 NL-5152 SC Drunen, Netherlands Tel: 31-416-690399 Fax: 31-416-690340 United Kingdom 505 Eskdale Road Winnersh Triangle Wokingham Berkshire, England RG41 5TU Tel: 44-118-921-5869 Fax: 44-118-921-5820 07/28/03 2003 Microchip Technology Inc. ...