ADT7473ARQZ-REEL7

Product Overview

Category

The ADT7473ARQZ-REEL7 belongs to the category of integrated circuit (IC) temperature sensors.

Use

This product is primarily used for monitoring and controlling temperature in electronic devices and systems.

Characteristics

• High accuracy temperature sensing
• Digital output interface
• Wide operating temperature range
• Low power consumption
• Small form factor

Package

The ADT7473ARQZ-REEL7 comes in a compact 16-pin quad flat no-leads (QFN) package.

Essence

The essence of this product lies in its ability to accurately measure temperature and provide digital output for temperature control applications.

Packaging/Quantity

The ADT7473ARQZ-REEL7 is typically packaged in reels, with each reel containing a quantity of 250 units.

Specifications

• Temperature Range: -40°C to +125°C
• Resolution: 0.0625°C
• Supply Voltage: 2.7V to 5.5V
• Interface: I2C/SMBus compatible
• Operating Current: 200µA (typical)

Detailed Pin Configuration

1. VDD: Power supply input
2. GND: Ground reference
3. SDA: Serial data line for I2C communication
4. SCL: Serial clock line for I2C communication
5. ALERT#: Open-drain output for temperature alert
6. TACHO: Tachometer input for fan speed measurement
7. PWM: Pulse-width modulation output for fan control
8. INT#: Open-drain output for interrupt signaling
9. VCCP: Power supply input for internal analog circuitry
10. VCC: Power supply input for digital circuitry
11. D+/-: Differential input for remote diode temperature sensing
12. DREF: Reference voltage output for remote diode temperature sensing
13. GND: Ground reference
14. VCC: Power supply input for digital circuitry
15. AD0: Address select input
16. RESET#: Active-low reset input

Functional Features

• Accurate temperature measurement with high resolution
• Programmable temperature thresholds for alert generation
• Fan control through pulse-width modulation (PWM) output
• Tachometer input for fan speed monitoring
• Interrupt signaling for temperature events
• Remote diode temperature sensing capability

Advantages and Disadvantages

Advantages

• High accuracy temperature sensing enables precise temperature control.
• Digital output interface simplifies integration with microcontrollers and other digital systems.
• Wide operating temperature range makes it suitable for various applications.
• Low power consumption helps in energy-efficient designs.
• Small form factor allows for space-constrained applications.

Disadvantages

• Limited to I2C/SMBus communication interface, may not be compatible with all systems.
• Requires external components for remote diode temperature sensing.

Working Principles

The ADT7473ARQZ-REEL7 utilizes a built-in temperature sensor to measure the ambient temperature accurately. It converts the analog temperature reading into a digital value using an internal analog-to-digital converter (ADC). The digital temperature data is then made available through the I2C/SMBus interface for further processing or control.

The device also supports remote diode temperature sensing, where an external diode can be connected to the differential inputs. This feature enables temperature measurement at a different location from the IC itself.

Detailed Application Field Plans

The ADT7473ARQZ-REEL7 finds applications in various fields, including:

1. Computer Systems: Temperature monitoring and control in desktops, laptops, servers, and embedded systems.
2. Consumer Electronics: Thermal management in televisions, gaming consoles, and audio/video equipment.
3. Industrial Automation: Temperature regulation in industrial machinery, control panels, and process monitoring systems.
4. Automotive: Climate control systems, engine temperature monitoring, and battery management.
5. Medical Devices: Temperature sensing in medical equipment, incubators, and laboratory instruments.

Detailed and Complete Alternative Models

1. LM35: Analog temperature sensor with a linear output voltage proportional to temperature.
2. TMP36: Low-power analog temperature sensor with a wide operating range.
3. DS18B20: Digital temperature sensor with a unique 64-bit serial code for easy integration.
4. MAX31855: Thermocouple-to-digital converter with cold-junction compensation for high-temperature measurements.
5. MCP9808: High-accuracy digital temperature sensor with I2C interface and programmable alert thresholds.

These alternative models offer similar temperature sensing capabilities but may have different features or specifications that suit specific application requirements.

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