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TC649EUA The Microchip Technology TC649EUA is an efficient PWM fan speed controller designed for brushless DC fans. It operates from a 3.0V to 5.5V supply range and features FanSense™ fault detection.
Mfr Part #:

TC649EUA

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology TC649EUA is an efficient PWM fan speed controller designed for brushless DC fans. It operates from a 3.0V to 5.5V supply range and features FanSense™ fault detection.
✓ Total Stock: 123 pcs
$ Price Range: $2.25

TC649EUA Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Bristol Electronics ✓
Non-Authorised Inventory information
123 pcs
On Request
123 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

TC649EUA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Function
Interface
Motor Type
Mounting Type
Operating Temperature
Output Configuration
SVHC Present
Supplier Device Package
Supplier Package
Voltage
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TC649EUA Description

Short technical summary and product information.

The TC649EUA from Microchip Technology is a switch-mode fan speed controller for brushless DC fans. It utilizes pulse width modulation (PWM) for temperature-proportional speed control, enabling acoustic management and extended fan life. The device supports a supply voltage range of 3.0V to 5.5V, with the fan voltage being independent of the TC649 supply voltage.

 

Key features include efficient PWM fan drive and Microchip's proprietary FanSense™ technology for fault detection, protecting against fan failure and aiding system testing. It also incorporates an automatic shutdown mode for energy-efficient "green" systems and supports low-cost NTC/PTC thermistors for temperature sensing. The TC649EUA is housed in a space-saving 8-pin MSOP package, suitable for surface mounting.

 

This controller is ideal for applications such as power supplies, computers, file servers, portable computers, telecom equipment, UPSs, and power amplifiers, providing general-purpose fan speed control. An integrated start-up timer ensures reliable motor start-up under various conditions, including power-on, shutdown mode recovery, or after a transient fault.

TC649EUA Quick Information

Product Type: Fan Speed Controller
Canonical Name: TC649EUA Fan Speed Controller
Subcategory: Fan Speed Controller

TC649EUA Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

TC649EUA Estimated Pricing

Qty Low High
1+ $2.25 $2.25

Estimated market price range - modelled values for guidance only, not live distributor offers.

TC649EUA Features

  • Efficient PWM fan drive control.
  • 3.0V to 5.5V supply range.
  • FanSense™ fault detection circuits.
  • Automatic shutdown mode for green systems.
  • Space-saving 8-pin MSOP package.

TC649EUA Applications

  • Ideal for power supply cooling.
  • Used in computer systems.
  • Suitable for file servers.
  • Applicable to telecom equipment.
  • General purpose fan speed control.

TC649EUA FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range of the TC649EUA?

3.0V to 5.5V.

What is the operating temperature range?

-40°C to 85°C.

What package is the TC649EUA available in?

8-MSOP (8-TSSOP/8-MSOP).

What type of motor does the TC649EUA control?

Brushless DC (BLDC).

What is the output configuration?

Pre-Driver - Low Side.

What interface does it use?

Parallel.

What is the function of the TC649EUA?

Controller - Speed.

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