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ManufacturerMicrochip
SeriesTC649

The TC649 is a switch mode fan speed controller for use with brushless DC motors

Datasheets

  • Download » Datasheet PDF, 383 Kb, File published: Feb 5, 2013
    TC649 Datasheet
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    TC649
    PWM Fan Speed Controller with Auto-Shutdown
    and FanSenseв„ў Technology
    Features Temperature Proportional Fan Speed for Acoustic
    Control and Longer Fan Life Efficient PWM Fan Drive 3.0V to 5.5V Supply Range:
    -Fan Voltage Independent of TC649
    Supply Voltage
    -Supports any Fan Voltage FanSenseв„ў Fault Detection Circuits Protect
    Against Fan Failure and Aid System Testing Automatic Shutdown Mode for “Green” Systems Supports Low Cost NTC/PTC Thermistors Space Saving 8-Pin MSOP Package Applications Power Supplies
    Computers
    File Servers
    Portable Computers
    Telecom Equipment
    UPSs, Power Amps
    General Purpose Fan Speed Control Available Tools Fan Controller Demonstration Board (TC642DEMO) Fan Controller Evaluation Kit (TC642EV) Package Types
    SOIC/PDIP/MSOP
    VIN 1 CF 2 VAS
    GND 8 VDD 7 VOUT 3 6 FAULT 4 5 SENSE TC649 General Description
    The TC649 is a switch mode, fan speed controller for
    use with brushless DC fans. Temperature proportional
    speed control is accomplished using pulse width modulation (PWM). A thermistor (or other voltage output
    temperature sensor) connected to the VIN input furnishes the required control voltage of 1.25V to 2.65V
    (typical) for 0% to 100% PWM duty cycle. The TC649 ...

Prices

Status

TC649EOATC649EOATRTC649EUATC649EUATRTC649VOATC649VOATRTC649VPATC649VUATC649VUATR
Lifecycle StatusProduction (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)

Packaging

TC649EOATC649EOATRTC649EUATC649EUATRTC649VOATC649VOATRTC649VPATC649VUATC649VUATR
PackageSOICSOICMSOPMSOPSOICSOICPDIPMSOPMSOP
Pins888888888

Parametrics

TC649EOATC649EOATRTC649EUATC649EUATRTC649VOATC649VOATRTC649VPATC649VUATC649VUATR
Auto shutdownYesYesYesYesYesYesYesYesYes
DescriptionFan ManagerFan ManagerFan ManagerFan ManagerFan ManagerFan ManagerFan ManagerFan ManagerFan Manager
External Temp InputNoNoNoNoNoNoNoNoNo
Fan Speed TableNoNoNoNoNoNoNoNoNo
FanSense fan monitorYesYesYesYesYesYesYesYesYes
High/Low PWM FreqLowLowLowLowLowLowLowLowLow
Integrated temp sensorYesYesYesYesYesYesYesYesYes
Max. Accuracy @ 25°, °Depends on external thermistorDepends on external thermistorDepends on external thermistorDepends on external thermistorDepends on external thermistorDepends on external thermistorDepends on external thermistorDepends on external thermistorDepends on external thermistor
Max. Supply Current, µA100010001000100010001000100010001000
Operating Temperature Range, °C-40 to +85-40 to +85-40 to +85-40 to +850 to +850 to +850 to +850 to +850 to +85
Over temp alertNoNoNoNoNoNoNoNoNo
Predictive fan fault detection/read/RPMNoNoNoNoNoNoNoNoNo
SMBus compatible interfaceNoNoNoNoNoNoNoNoNo
Temp. Range, °-40 - +85-40 - +85-40 - +85-40 - +85-40 - +85-40 - +85-40 - +85-40 - +85-40 - +85
Typical Accuracy, °Depends on external thermistorDepends on external thermistorDepends on external thermistorDepends on external thermistorDepends on external thermistorDepends on external thermistorDepends on external thermistorDepends on external thermistorDepends on external thermistor
Vcc Range, V+3.0 - +5.5+3.0 - +5.5+3.0 - +5.5+3.0 - +5.5+3.0 - +5.5+3.0 - +5.5+3.0 - +5.5+3.0 - +5.5+3.0 - +5.5

Eco Plan

TC649EOATC649EOATRTC649EUATC649EUATRTC649VOATC649VOATRTC649VPATC649VUATC649VUATR
RoHSCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliant

Moldel Line

Series: TC649 (9)

Manufacturer's Classification

  • Thermal Management > Fan Controllers > Open Loop Fan Controllers and Fault Detectors

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