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M TC642B/TC647B PWM Fan Speed Controllers With Minimum Fan Speed, Fan Restart and FanSense™ Technology for Fault Detection 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 Inde
M 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 TC647 Supply Voltage - Supports any Fan Voltage • FanSense™ Technology Fault Detection Circuits Protect Against Fan F
TC643 INTEGRATED FAN / MOTOR DRIVER FEATURES s Integrates Current Limited Power Driver and Diagnostic/Monitoring Circuits in a Single IC s Works with Standard DC Brushless Fans/Motors s Supports Efficient PWM Drive with Logic-Level Input s Supply Range ........................................ 2.7V
M 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 • FanSense™ Fault Detection Circuits Protect Against Fan Failure and
M 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 TC648 Supply Voltage - Supports any Fan Voltage • Over-temperature Fault Detection • Automatic Shutdown Mode for “G
M 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 TC646 Supply Voltage - Supports any Fan Voltage • FanSense™ Fault Detection Circuits Protect Against Fan Failure and
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