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TC648VOA from TC

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TC648VOA

Manufacturer: TC, PIRCOM, MICROCHI, Microchip

Fan Speed Controller with Auto-Shutdown and Over-Temperature Alert

Partnumber Manufacturer Quantity Availability
TC648VOA TC, PIRCOM, MICROCHI, Microchip 1841 In Stock

Description and Introduction

Fan Speed Controller with Auto-Shutdown and Over-Temperature Alert The TC648VOA 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 (Pulse Width Modulation)  
- **Accuracy:** ±2°C (typical) over the full temperature range  
- **Package Type:** 8-Pin SOIC  

### **Descriptions:**  
The TC648VOA is a standalone temperature sensor and fan controller designed to monitor system temperature and adjust fan speed accordingly. It eliminates the need for external microcontroller intervention by autonomously controlling fan speed based on temperature thresholds.  

### **Features:**  
- **Automatic Fan Speed Control:** Adjusts fan speed based on temperature readings.  
- **Programmable Temperature Thresholds:** Configurable via external resistors.  
- **Open-Drain Output:** Supports PWM fan control.  
- **Low Power Consumption:** Suitable for battery-powered applications.  
- **Built-in Hysteresis:** Prevents fan oscillation near setpoints.  
- **Standalone Operation:** No external microcontroller required.  
- **Over-Temperature Protection:** Ensures system safety by triggering alarms or shutdowns if thresholds are exceeded.  

For detailed electrical characteristics and application circuits, refer to the official Microchip datasheet.

Application Scenarios & Design Considerations

Fan Speed Controller with Auto-Shutdown and Over-Temperature Alert

Alternative Part Number

  • NE555DR --: Widely available timer IC in SOIC-8 that can serve as a functional substitute in many PWM/fan control circuits, with broad second-source availability.
  • LM555CM --: Classic 555 timer in SOIC-8 package, pin-compatible with many timer-based fan controller designs and easy to source.
  • TLC555CDR --: CMOS 555 timer offering lower power consumption and rail-to-rail output, suitable as a drop-in timer replacement in SOIC-8.
  • MIC5021YM --: Fan controller IC with similar speed-control functionality and comparable supply voltage range, commonly used as a TC648 substitute.
  • MAX6650EUB --: Fan speed controller with PWM output and temperature sensing, functionally similar to the TC648 in fan management applications.
  • ADM1030ARQZ --: Remote temperature sensor and fan controller offering comparable fan control features and a similar small-outline package option.
  • LM555CMX --: Classic bipolar timer in SOIC-8 package, pin-compatible with common timer sockets and suitable as a functional substitute for basic PWM fan control circuits.

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