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Microchip Technology TC648BEOA Fan Speed Controller

The TC648B is a PWM fan speed controller with auto-shutdown and fan fault detection, designed to regulate fan speeds based on temperature via PWM. It features a thermistor input to monitor temperature, supporting auto-shutdown at preset thresholds, and provides fault detection to improve system reliability. Available in various packages including SOIC, PDIP, and MSOP, it offers flexible power supply options from 3.0V to 5.5V, with specific features like active-low fault outputs, capability to drive NPN transistors or N-channel MOSFETs, and a frequency range of 26-34 Hz for efficient fan operation.

Authorized Distributors
Source:Newark
Part No:TC648BEOA
Stock:142
Inv Date:06-03-2026
Price: Unit price: $1.66
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Source:DigiKey
Part No:TC648BEOA
Stock:1049
Inv Date:06-03-2026
Price: Unit price: $1.61
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Part No:TC648BEOA
Stock:665
Inv Date:06-04-2026
Price: Unit price: $1.61
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Part No:TC648BEOA
Stock:0
Inv Date:06-03-2026
Price: Unit price: $1.66
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Part No:TC648BEOA
Stock:0
Inv Date:06-03-2026
Price: Unit price: $1.41
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Part No:TC648BEOA
Stock:0
Inv Date:06-03-2026
Price: Unit price: $1.41
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Part No:TC648BEOA
Stock:0
Inv Date:06-03-2026
Price: Unit price: $1.27
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Source:Arrow EU
Part No:TC648BEOA
Stock:1694
Inv Date:06-04-2026
Price: N/A
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Part No:TC648BEOA
Stock:69
Inv Date:06-04-2026
Price: N/A
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Microchip Technology TC648BEOA Fan Speed Controller Specifications:

  • Supply Voltage: 3.0V to 5.5V
  • PWM Frequency Range: 26-34 Hz
  • Vout Drive Current: Source 5.0 mA, Sink 1.0 mA
  • Fault Output: Active-low open-drain, asserts on fan fault or over-temperature
  • Viy Input Voltage Range: 1.20V to 2.60V for 0%-100% PWM duty cycle
  • Auto-shutdown threshold voltage set by external resistor divider
  • Analog inputs: Vin, Vas, SENSE; digital outputs: FAULT/OTF, Vout
  • Operating Temperature: -40°C to +125°C, Storage: -65°C to +150°C
  • Package options: SOIC (150 mil), PDIP (300 mil), MSOP
  • Designed to drive external NPN transistors or N-channel MOSFETs for fan control
  • Integrated fan fault detection through pulse sensing at SENSE pin
  • Supports various fan types with pulse detection for reliable operation

Buy the Buy Microchip PWM Fan Speed Controller Part Number TC648BEOA Online

Get the Microchip TC648B PWM fan speed controller with auto-shutdown and fault detection today. Designed for reliable cooling in computers, servers, and telecom equipment. Supports temperature-based PWM regulation, easy to integrate, and available in multiple packages like SOIC and PDIP. Enhance your cooling system’s performance and fault monitoring with this efficient, versatile control component. Purchase online now for fast delivery and trusted quality to ensure your project remains cool, safe, and efficient.

Order your Microchip Series TC648B fan controller today and enhance your system's cooling reliability with precise fan regulation and fault detection.

Frequently Asked Questions

Where can I buy Microchip Technology TC648BEOA?

You can click on the BUY or RFQ button to purchase TC648BEOA from an authorized Microchip Technology distributor.

How do I troubleshoot issues or seek technical support for part TC648BEOA?

You can download the TC648BEOA datasheet or visit the Microchip Technology website for support.

Who is the manufacturer of TC648BEOA?

Microchip Technology

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