MCP9904T-2E/9Q

Introduction

The MCP9904T-2E/9Q is a versatile and advanced temperature sensor and fan controller designed for various applications. This device offers precise temperature monitoring and control capabilities, making it an essential component in systems where thermal management is critical.

Basic Information Overview

• Category: Temperature Sensor and Fan Controller
• Use: Monitoring and controlling temperature, and regulating fan speed in electronic systems
• Characteristics: High precision temperature sensing, flexible fan control, compact design
• Package: 20-Lead QFN (4mm x 4mm)
• Essence: Efficient thermal management and system reliability
• Packaging/Quantity: Available in tape and reel packaging with quantities as per customer requirements

Specifications

• Temperature Measurement Range: -40°C to +125°C
• Fan Control: PWM or linear fan control modes
• Voltage Supply: 3.0V to 3.6V
• I2C Interface: Up to 1MHz
• Accuracy: ±1°C (max) from -10°C to +85°C

Detailed Pin Configuration

The MCP9904T-2E/9Q features a 20-pin QFN package with the following pin configuration: 1. VDD – Power supply input 2. GND – Ground 3. SDA – I2C data line 4. SCL – I2C clock line 5. ALERT – Interrupt output 6. TACH – Fan tachometer input 7. FANPWM – Fan PWM output 8. TEMPALERT – Temperature alert output 9. THERM – Thermistor input 10. TDIODE – Diode temperature input 11-20. NC – No connect

Functional Features

• Accurate temperature measurement and monitoring
• Flexible fan control options for efficient thermal management
• Integrated diode temperature sensing for precise thermal regulation
• I2C interface for seamless integration with microcontrollers and other devices
• Temperature and fan speed alerts for proactive system maintenance

Advantages and Disadvantages

Advantages: - High accuracy temperature sensing - Versatile fan control options - Compact and space-saving package - Seamless integration with microcontrollers

Disadvantages: - Limited to a specific voltage supply range - Requires I2C interface for communication

Working Principles

The MCP9904T-2E/9Q operates by accurately measuring the temperature using its integrated diode temperature sensor and thermistor inputs. It then utilizes this temperature data to regulate fan speed through PWM or linear control modes, ensuring optimal thermal conditions within the system.

Detailed Application Field Plans

This device finds extensive application in various fields including: - Computer and server systems - Industrial automation equipment - Medical devices - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

• MAX31725
• LM96000
• ADT7461

In conclusion, the MCP9904T-2E/9Q is a highly capable temperature sensor and fan controller that plays a crucial role in maintaining optimal thermal conditions within electronic systems. Its precise temperature measurement, flexible fan control, and seamless integration capabilities make it an indispensable component in a wide range of applications.

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