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Microchip Technology TC646BEOA PWM Fan Controller
The TC646B/TC648B/TC649B devices are advanced PWM fan speed controllers with auto-shutdown, fault detection, fan auto-restart, and temperature-proportional control. They feature a PWM mode operating at 30 Hz, support supply voltages from 3.0V to 5.5V, and operate over temperatures from -40°C to +85°C. These controllers can drive external transistors or MOSFETs, monitor fan operation via sense inputs, and provide fault indication and over-temperature alerts, making them ideal for system fans in computers, servers, and telecom equipment.
Microchip Technology TC646BEOA PWM Fan Controller Specifications:
- Supply Voltage: 3.0V to 5.5V
- PWM Frequency: 30 Hz (typical)
- Operating Temperature Range: -40°C to +85°C
- Fan Current (Full Load): Up to 150 mA
- Locked Rotor Current: Up to 360 mA
- Fan Fault Detection: Via SENSE pin detecting pulses
- Over-Temperature Threshold: Approximately 2.62V at Viy
- Auto-Shutdown Threshold: Set via external resistor to Viy
- Pin Configuration: 8-pin MSOP, SOIC, PDIP packages
- Protection: Fault warning and fault pin signals
- Supports external NPN transistors or N-channel MOSFETs
- Start-up Timer: 32 PWM cycles (~1 second)
- Carrier Capacitor for PWM: 1.0 uF recommended
- Hysteresis: 80 mV for over-temperature detect
- Max junction temperature: +150°C
- Modules include fan fault and over-temperature indicators
Buy the Microchip Series TC646B PWM Fan Speed Controller: TC646BEOA
Enhance your cooling solutions with the Microchip PWM fan speed controller. With auto-shutdown, fault detection, and fan auto-restart, this device ensures efficient and reliable fan operation. Support for supply voltages from 3.0V to 5.5V and operating temperatures from -40°C to +85°C make it suitable for a wide range of applications including PCs, servers, and telecom equipment. Easy to connect with support for external transistor or MOSFET drive, it offers precise temperature and fault monitoring to maintain system stability and longevity.
Order your Microchip Series TC646BEOA PWM fan speed controller today and ensure reliable cooling with fault detection and auto-shutdown for robust system performance.
Frequently Asked Questions
Where can I buy Microchip Technology TC646BEOA?
You can click on the BUY or RFQ button to purchase TC646BEOA from an authorized Microchip Technology distributor.
How do I troubleshoot issues or seek technical support for part TC646BEOA?
You can download the TC646BEOA datasheet or visit the Microchip Technology website for support.
Who is the manufacturer of TC646BEOA?
Microchip Technology