Microchip TC649BEUA
Manufacturer No:
TC649BEUA
Manufacturer:
Microchip
Package:
8-TSSOP, 8-MSOP (0.118, 3.00mm Width)
Description:
TC649B PWM fan speed controller with temperature proportional control, thermistor input, fan sense, fault, auto shutdown
Quantity:
In Stock :9221
Looking for price or availability? Send us an RFQ and our sales team will respond quickly.
Shipping & Availability
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Shipped from：HK Warehouse
Expected Shipping：Tue, Jun 30 - Wed, Jul 1, 2026
Lead Time：Inquire about availability
Date Code：Within 2 Years
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PURCHASE
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RFQ (REQUEST FOR QUOTATIONS)Please ensure the part numbers and quantities are accurate and complete when submitting your RFQ.
Provide target prices and acceptable alternatives, if any, to speed up the quotation process.
Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.
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Step2：Desiccant Protection
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SHIPPING COST
1. Shipping starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).
2. Some specific products need to reach the minimum order quantity.
3. It may cost additional remote fees for delivery if you are in a remote area.
Currently, our products are shipped through DHL, FedEx, SF, and UPS.
DELIVERY TIME1. Once the goods are shipped, estimated delivery time depends on the shipping methods you chose: FedEx International, 5-7 business days.
2. For in-stock parts, orders normally could be shipped out within 1-2days.
TC649BEUA Information
Microchip TC649BEUA technical specifications, attributes, parameters and parts with similar specifications to Microchip TC649BEUA.
- Type
- Parameter
- Device Description
- Fan Manager
- Typical Accuracy (°C)
- Depends on external thermistor
- Over Temp Alert
- Yes
- SM Bus
- No
- Predictive Fan Fault
- No
- Max. Supply Current (µA)
- 400
- Max Accuracy @ 25°C (°C)
- Depends on external thermistor
- Integrated temp Sensor
- No
- Fan Sense
- Yes
- External Temp Input
- Yes
- Type
- Parameter
- Auto Shutdown
- Yes
- PWMFreq
- Low
- FanSpeedTable
- No
- Temp. Range Max. (°C)
- +85
- Temp. Range. Min. (°C)
- -40
- Vcc Range Max. (V)
- +5.5
- Vcc Range Min. (V)
- +3.0
Download datasheets and manufacturer documentation for Microchip TC649BEUA.
Data Sheets:
Application Notes:
The TC649B is a new version of the existing TC649 fan speed controller. This device is a switch mode fan speed controller, which incorporates a new fan auto restart function. Temperature proportional speed control is accomplished using pulse width modulation. A thermistor (or other voltage output temperature sensor) connected to the VIN input supplies the required control voltage of 1.20V to 2.60V (typical) for 0% to 100% PWM duty cycle. The auto-shutdown speed is set by a simple resistor divider on the VAS input. An integrated Start-Up Timer ensures reliable fan motor start-up at turn-on, coming out of shutdown mode, auto-shutdown mode, or following a transient fault. A logic low applied to VIN, pin 1, causes fan shutdown.
The TC649B also features Microchip Technology's proprietary FanSense™ technology for increasing system reliability. In normal fan operation, a pulse train is present at SENSE, pin 5. A missing-pulse detector monitors this pin during fan operation. A stalled, open, or unconnected fan causes the TC649B device to turn the VOUT output on full (100% duty cycle). If the fan fault persists (a fan current pulse is not detected within a 32/F period), the FAULT output goes low. Even with the FAULT output low, the VOUT output is on full during the fan fault condition in order to try and restart the fan.
- Temperature Proportional Fan Speed for Acoustic Control and Longer Fan Life
- FanSense™ Protects Against Fan Failure
- Efficient PWM Drive
- Automatic Shutdown Mode for "Green" Systems
- 3.0V to 5.5V Supply Range
- Fan Voltage Independent of Supply Voltage – Supports Any Fan Voltage
- Supports Low Cost NTC/PTC Thermistors
- Fan Auto-Restart
TC649BEUA FAQ
Can I request a quote for TC649BEUA?
TC649BEUA from Microchip is ready for RFQ submission. Send your target quantity and requirements, and AIChipLink will check current availability, lead time, and quantity-based pricing.
Why is pricing not shown as a fixed value for TC649BEUA?
The final price for TC649BEUA depends on requested quantity, supply conditions, date code, package option, and destination. An RFQ lets us return the current market quote for your order.
Which specifications should I review for TC649BEUA?
TC649BEUA is a Microchip Fan Controller ICs part. Key details include Max. Supply Current (µA): 400 and Max Accuracy @ 25°C (°C): Depends on external thermistor; contact us if you need the specifications verified before sourcing.
When will I receive a quotation for TC649BEUA?
After you submit the RFQ for TC649BEUA, our sales team typically replies within 24 hours with availability, unit pricing, lead time, shipping choices, and possible substitutes.
What is the expected shipping time for TC649BEUA?
Once stock for TC649BEUA is confirmed, available inventory can generally ship within 1–2 business days. The final schedule depends on quantity, warehouse source, and delivery address.
Can AIChipLink help find alternatives to TC649BEUA?
Yes. If TC649BEUA is unavailable, end-of-life, or outside your schedule, we can review comparable Microchip Fan Controller ICs parts and compatible replacement options.
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