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ManufacturerMicrochip
SeriesTC642
Part NumberTC642COA

The TC642 is a switch mode fan speed controller for use with brushless DC motors

Datasheets

  • Download » Datasheet, PDF, 388 Kb, 02-05-2013
    TC642 Datasheet
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    TC642
    PWM Fan Speed Controller with FanSense™ 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 TC642
    Supply Voltage
    -Supports any Fan Voltage FanSense™ Fault Detection Circuits Protect
    Against Fan Failure and Aid System Testing Shutdown Mode for "Green" Systems Supports Low Cost NTC/PTC Thermistors Space Saving 8-Pin MSOP Package Over-temperature Indication Applications Power Supplies
    Personal Computers
    File Servers
    Telecom Equipment
    UPSs, Power Amps, etc.
    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 VMIN
    GND 8 VDD 7 VOUT 3 6 FAULT 4 5 SENSE TC642 General Description
    The TC642 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. Minimum fan
    speed is set by a simple resistor divider on the VMIN
    input. An integrated Start-up Timer ensures reliable ...

Prices

ProviderNamePrice
AliExpressTC642COA TC7660EOA TA8050P TLC27M7C TLC27M7IDR3,20 $
More about terms of delivery »

Status

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

Packaging

PackageSOIC
Pins8

Parametrics

Auto shutdownNo
DescriptionFan Manager
External Temp InputYes
Fan Speed TableNo
FanSense fan monitorYes
High/Low PWM FreqLow
Integrated temp sensorNo
Max. Accuracy @ 25°Depends on external thermistor °
Max. Supply Current1000 µA
Operating Temperature Range0 to +70 °C
Over temp alertYes
Predictive fan fault detection/read/RPMNo
SMBus compatible interfaceNo
Temp. Range-40 - +85 °
Typical AccuracyDepends on external thermistor °
Vcc Range+3.0 - +5.5 V

Eco Plan

RoHSCompliant

Moldel Line

Series: TC642 (12)

Manufacturer's Classification

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

Related datasheets:

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