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TC621CEOA from MICROCHIP

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TC621CEOA

Manufacturer: MICROCHIP, TC, TOSHIBA

5V, DUAL TRIP POINT TEMPERATURE SENSORS
Partnumber Manufacturer Quantity Availability
TC621CEOA MICROCHIP, TC, TOSHIBA 8555 In Stock

Description and Introduction

5V, DUAL TRIP POINT TEMPERATURE SENSORS The TC621CEOA is a temperature sensor manufactured by Microchip Technology. Below are its specifications, descriptions, and features based on the available knowledge:  

### **Specifications:**  
- **Supply Voltage Range:** 2.7V to 4.4V  
- **Operating Temperature Range:** -40°C to +125°C  
- **Accuracy:** ±2°C (typical)  
- **Output Type:** Open-drain active-low (requires pull-up resistor)  
- **Hysteresis:** Programmable (1°C to 10°C)  
- **Quiescent Current:** 50µA (typical)  
- **Trip Point Temperature:** Factory-programmed or user-adjustable (via external resistors)  
- **Package:** 8-pin SOIC (Small Outline Integrated Circuit)  

### **Descriptions:**  
The TC621CEOA is a low-voltage, precision temperature switch designed to monitor system temperatures and trigger an alert when a predefined threshold is exceeded. It is commonly used in thermal management applications such as cooling fan control, over-temperature protection, and battery temperature monitoring.  

### **Features:**  
- **Low Power Consumption:** Ideal for battery-powered applications.  
- **User-Configurable Hysteresis:** Prevents rapid toggling near the trip point.  
- **Wide Operating Voltage Range:** Supports 2.7V to 4.4V systems.  
- **Factory-Programmed or Adjustable Trip Point:** Flexibility for different applications.  
- **Open-Drain Output:** Compatible with various logic levels.  
- **Small Form Factor:** 8-pin SOIC package for space-constrained designs.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

5V, DUAL TRIP POINT TEMPERATURE SENSORS

Alternative Part Number

  • MCP9509CT-E/OT --: Microchip temperature switch in SOT-23 package with similar over-temperature switch function and active-low output, easy drop-in for many TC621 applications.
  • LM56CIMM --: Dual-trip-point temperature switch with analog output in MSOP-8, functionally comparable to the TC621 thermostat controller and widely available.
  • ADT6501ARJZ-R2 --: Low-cost SOT-23 temperature switch with programmable trip point, suitable replacement for simple over-temperature detection where TC621 is used.
  • LM26CIM5-TPA --: Thermostat/temperature switch in SOT-23-5 with factory-set trip point and open-drain output, a common drop-in style replacement for TC621 thermal switch applications.
  • MAX6501UKP035 --: Low-power temperature switch in SOT-23-5 with logic output and adjustable hysteresis, suitable as a functional alternative when exact trip point is matched.
  • MCP9501-1 --: Temperature switch IC with similar over-temperature detection function and comparator output, suitable as a functional replacement in thermal protection circuits.
  • LM56 --: Analog temperature sensor with dual trip-point outputs, offering comparable temperature monitoring and alarm functionality.
  • ADT6501 --: Low-cost temperature switch with programmable trip point and open-drain output, usable as an alternative thermal switch in similar applications.

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