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Microchip Technology TC646VOA Fan Controller
The TC646 is a versatile PWM fan speed controller designed for brushless DC fans, featuring automatic shutdown, FanSense™ fault detection, and temperature proportional control. It operates over a supply range of 3.0V to 5.5V, supporting various fan voltages for efficient cooling management in power supplies, computers, telecom equipment, and UPS systems. The device manages fan speed via PWM, monitors fan operation with FanSense™ technology, and provides fault indication, auto-shutdown, and over-temperature warning. Available in small packages with comprehensive evaluation tools, this controller enhances system reliability and thermal protection.
Microchip Technology TC646VOA Fan Controller Specifications:
- Supply Voltage Range: 3.0V to 5.5V
- Package Types: SOIC, PDIP, MSOP
- Operating Temperature Range: -40°C to +125°C
- Fault Detection: FanSense™ technology with pulse monitoring
- Shutdown Mode: Auto and manual with reset options
- PWM Frequency: 26Hz to 34Hz (typical 30Hz)
- Start-up Timer: 32 PWM cycles (~1 second at 30Hz)
- Maximum Fan Current: 250mA
- Auto-shutdown Threshold: Set via external resistor divider
- Hysteresis Voltage for Auto-shutdown: 70mV
- Voltage at Vin for 100% duty cycle: 2.65V
- Output Drive: NPN transistor, N-channel MOSFET, Darlington configurations
- Pin Count: 8 Pins
- Thermistor Support: NTC/PTC thermistors supported
- Power Dissipation: Low due to PWM control scheme
- Reliability Features: FanSense fault detection, auto-shutdown, over-temperature indication
- Package Compatibility: SOIC (150 mil), PDIP (300 mil), MSOP (8-pin)
- Additional Tools: Demonstration Board, Evaluation Kit
- Design Support: External thermistor network, resistor divider for auto-shutdown, drive transistor selection
Buy the Buy Microchip TC646 Part Number TC646VOA Online
Order the Microchip TC646 fan speed controller online today to ensure optimal thermal management in your electronics. Designed for reliable PWM operation, fault detection with FanSense™, and auto-shutdown, it is ideal for power supplies, computers, and telecom equipment. The compact 8-pin package supports efficient fan control over a wide supply voltage range of 3.0V to 5.5V, with comprehensive fault indication and fault detection features. Easy to integrate with evaluation tools available, delivering system robustness and thermal safety for demanding applications.
Get Microchip TC646VOA today—engineered for precise fan control, fault detection, and long-lasting reliability in electronic cooling systems.
Frequently Asked Questions
Where can I buy Microchip Technology TC646VOA?
You can click on the BUY or RFQ button to purchase TC646VOA from an authorized Microchip Technology distributor.
How do I troubleshoot issues or seek technical support for part TC646VOA?
You can download the TC646VOA datasheet or visit the Microchip Technology website for support.
Who is the manufacturer of TC646VOA?
Microchip Technology