Datasheet Microchip TC649VUATR The TC649 is a switch mode fan speed controller for use with brushless DC motors Datasheets- Download » Datasheet, PDF, 383 Kb, 02-05-2013
TC649 Datasheet Docket ↓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 ...
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StatusLifecycle Status | Production (Appropriate for new designs but newer alternatives may exist) |
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PackagingParametricsAuto shutdown | Yes |
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Description | Fan Manager |
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External Temp Input | No |
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Fan Speed Table | No |
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FanSense fan monitor | Yes |
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High/Low PWM Freq | Low |
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Integrated temp sensor | Yes |
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Max. Accuracy @ 25° | Depends on external thermistor ° |
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Max. Supply Current | 1000 µA |
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Operating Temperature Range | 0 to +85 °C |
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Over temp alert | No |
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Predictive fan fault detection/read/RPM | No |
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SMBus compatible interface | No |
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Temp. Range | -40 - +85 ° |
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Typical Accuracy | Depends on external thermistor ° |
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Vcc Range | +3.0 - +5.5 V |
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Eco PlanMoldel LineSeries: TC649 (9) Manufacturer's Classification- Thermal Management > Fan Controllers > Open Loop Fan Controllers and Fault Detectors
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