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TC642B Datenblatt (PDF) - Microchip Technology

TC642B Datasheet PDF - Microchip Technology
Teilenummer TC642B
Download  TC642B Download

Filegröße   662.92 Kbytes
Page   34 Pages
Hersteller  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology
Bauteilbeschribung PWM Fan Speed Controllers With Minimum Fan Speed, Fan Restart and FanSense??Technology for Fault Detection

TC642B Datasheet (PDF)

Go To PDF Page Download Datenblatt
TC642B Datasheet PDF - Microchip Technology

Teilenummer TC642B
Download  TC642B Click to download

Filegröße   662.92 Kbytes
Page   34 Pages
Hersteller  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology
Bauteilbeschribung PWM Fan Speed Controllers With Minimum Fan Speed, Fan Restart and FanSense??Technology for Fault Detection

TC642B Datenblatt (HTML) - Microchip Technology

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TC642B Produktdetails

Description
The TC642B/TC647B devices are new versions of the existing TC642/TC647 fan speed controllers. These devices are switch mode, fan speed controllers that incorporate a new fan auto-restart function. Temperature-proportional speed control is accomplished using pulse width modulation. A thermistor (or other voltage output temperature sensor) connected to the VIN input supplies the required control voltage of 1.20V to 2.60V (typical) for 0% to 100% PWM duty cycle. Minimum fan speed is set by a simple resistor divider on the VMIN input. An integrated Start-Up Timer ensures reliable motor start-up at turn-on, coming out of shutdown mode or following a transient fault. A logic-low applied to VMIN (pin 3) causes fan shutdown.

Features
• Temperature-Proportional Fan Speed for Acoustic Noise Reduction and Longer Fan Life
• Efficient PWM Fan Drive
• 3.0V to 5.5V Supply Range:
    - Fan Voltage Independent of TC642B/TC647B Supply Voltage
    - Supports any Fan Voltage
• FanSense™ Fault Detection Circuit Protects Against Fan Failure and Aids System Testing
• Shutdown Mode for "Green" Systems
• Supports Low Cost NTC/PTC Thermistors
• Over-Temperature Indication (TC642B only)
• Fan Auto-Restart
• Space-Saving 8-Pin MSOP Package

Applications
• Personal Computers & Servers
• LCD Projectors
• Datacom & Telecom Equipment
• Fan Trays
• File Servers
• General Purpose Fan Speed Control




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Über Microchip Technology


Die Microchip -Technologie ist eine amerikanische Halbleiterfirma, die 1989 gegründet wurde.
Das Unternehmen bietet eine breite Palette von Mikrocontrollern, Analog-, Speicher- und Sicherheitsprodukten für verschiedene Anwendungen in den Märkten Automobil-, Industrie- und Verbrauchermärkte.
Microchip ist einer der größten Mikrocontroller-Lieferanten der Welt und ist bekannt für sein Know-how in Bezug auf das Design mit geringer Leistung und deren Fokus auf energiesparende Technologien.
Das Unternehmen bietet auch Entwicklungstools und Software an, um Kunden dabei zu helfen, ihre Produkte zu entwerfen und zu prototypisieren.
Microchip ist in über 70 Ländern betrieben und seine Produkte werden in einer Vielzahl von Anwendungen verwendet.

*Diese Informationen dienen nur zu allgemeinen Informationszwecken. Wir haften nicht für Verluste oder Schäden, die durch die oben genannten Informationen verursacht werden.




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