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TC642VOA from MICROCHI

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TC642VOA

Manufacturer: MICROCHI, MICROCHIP

PWM Fan Speed Controller with FanSense? Technology

Partnumber Manufacturer Quantity Availability
TC642VOA MICROCHI, MICROCHIP 510 In Stock

Description and Introduction

PWM Fan Speed Controller with FanSense? Technology The **TC642VOA** is a temperature sensor and fan controller manufactured by **Microchip Technology**. Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** Microchip Technology  
- **Category:** Sensors, Transducers – Temperature Sensors and Thermal Management  
- **Package / Case:** 8-SOIC (0.154", 3.90mm Width)  
- **Operating Temperature Range:** **-40°C to +125°C**  
- **Output Type:** Open Drain  
- **Supply Voltage:** **4.5V to 18V**  
- **Current - Supply:** **1.5mA**  
- **Accuracy:** **±3°C (typical)**  
- **Sensing Temperature:** **-40°C to +125°C**  

### **Descriptions:**  
- The **TC642VOA** is a **fan speed controller** and **temperature sensor** designed for thermal management applications.  
- It monitors temperature via an external **NTC thermistor** and adjusts fan speed accordingly.  
- It features an **open-drain output** for driving a fan or other cooling device.  
- The device operates from a **wide voltage range (4.5V to 18V)**, making it suitable for various applications.  

### **Features:**  
- **Automatic Fan Speed Control** based on temperature input.  
- **Wide Supply Voltage Range (4.5V to 18V)** for flexibility in different systems.  
- **Low Supply Current (1.5mA)** for power efficiency.  
- **Open-Drain Output** for driving external fans.  
- **Compatible with NTC Thermistors** for temperature sensing.  
- **Thermal Shutdown Protection** to prevent overheating.  
- **Small 8-SOIC Package** for space-constrained applications.  

This information is based solely on the manufacturer's specifications and datasheet. For detailed technical data, refer to the official **Microchip TC642VOA datasheet**.

Application Scenarios & Design Considerations

PWM Fan Speed Controller with FanSense? Technology

Alternative Part Number

  • NE555DR --: Widely available timer IC that can implement fan speed control PWM functions similar to the TC642 in many applications.
  • LM393DR --: Dual comparator usable to build fan control and fault detection circuits comparable to the TC642's monitoring functions.
  • ADT7470ARQZ --: Dedicated fan controller/monitor IC offering PWM fan control and tach monitoring as a functional substitute.
  • ADM1024ARUZ --: Fan controller IC with temperature monitoring and PWM fan drive, functionally similar to the TC642 in an SOIC-style package.
  • MAX6641AUB --: SMBus fan-speed controller with temperature sensing, comparable feature set and small package, suitable as a drop-in functional substitute.
  • LM63CIMSA --: Integrated remote-diode temperature sensor and fan control IC offering similar PWM fan regulation and monitoring functions.

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