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TC647VOA from TC

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TC647VOA

Manufacturer: TC, MICROCHIP, MICROCHI, TOS

PWM Fan Speed Controller with FanSense Technology

Partnumber Manufacturer Quantity Availability
TC647VOA TC, MICROCHIP, MICROCHI, TOS 1830 In Stock

Description and Introduction

PWM Fan Speed Controller with FanSense Technology The TC647VOA is a temperature sensor and fan controller manufactured by Microchip Technology. Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:  

### **Specifications:**  
- **Supply Voltage (VDD):** 4.5V to 18V  
- **Operating Temperature Range:** -40°C to +125°C  
- **Temperature Sensing Range:** -40°C to +125°C  
- **Output Drive Capability:** Up to 25mA (open-drain)  
- **Fan Control Output:** PWM or linear (voltage) mode  
- **Accuracy:** ±3°C (typical) over the full temperature range  
- **Package:** 8-pin SOIC  

### **Descriptions:**  
The TC647VOA is an integrated temperature sensor and fan controller designed for automatic fan speed regulation based on temperature. It eliminates the need for external components by incorporating an internal temperature sensor and control logic. The device can operate in either PWM or voltage control mode to drive a cooling fan efficiently.  

### **Features:**  
- **Integrated Temperature Sensor:** Eliminates the need for an external sensor.  
- **Flexible Fan Control:** Supports both PWM and linear voltage control modes.  
- **User-Adjustable Temperature Thresholds:** Allows customization of fan activation points.  
- **Open-Drain Output:** Provides compatibility with various fan types.  
- **Low Power Consumption:** Suitable for power-sensitive applications.  
- **Wide Operating Voltage Range:** Supports 4.5V to 18V for versatile applications.  
- **Thermal Hysteresis:** Prevents rapid fan cycling near the set temperature threshold.  

For detailed application notes or additional technical data, refer to the official Microchip datasheet.

Application Scenarios & Design Considerations

PWM Fan Speed Controller with FanSense Technology

Alternative Part Number

  • NE555D --: Widely available timer IC in SOIC-8 that can implement fan speed PWM control functions similar to the TC647 fan controller.
  • FAN6755 --: Fan controller IC with PWM speed control features suitable as a functional substitute for the TC647 in cooling fan applications.
  • MAX6642 --: Temperature-based fan controller in small package offering comparable fan speed regulation functionality.
  • NE555DR --: Widely available timer IC in SOIC-8 that can implement fan speed control PWM functions similar to the TC647 fan controller.
  • MAX31740ATA+T --: Dedicated fan speed controller in a small package offering PWM fan control, a close functional match for the TC647.
  • ADM1032ARMZ --: Remote temperature sensor with fan control output in SOIC-8, suitable as a functional substitute for fan management applications.
  • MC33035P --: Brushless DC motor controller offering comparable fan/motor drive control features and commonly used as a functional substitute.
  • LM2907N --: Frequency-to-voltage converter usable for tachometer-based fan speed regulation, covering similar sensing and control roles.
  • MC33060ADR2G --: PWM controller in SOIC-8 package suitable for motor/fan speed regulation, offering a functional alternative to the TC647.
  • SG3525AD --: PWM control IC commonly used for fan and motor drive applications, providing comparable speed control capability in a standard package.

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