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LM89CIMM
Product Overview
Category: Integrated Circuit
Use: Temperature Sensor and Fan Controller
Characteristics: High accuracy, digital output, small form factor
Package: 8-pin SOIC
Essence: LM89CIMM is a temperature sensor and fan controller designed for use in various electronic systems. It provides accurate temperature measurements and control over fan speed based on the temperature readings.
Packaging/Quantity: Available in reels of 2500 units
Specifications
- Operating Voltage: 2.7V to 5.5V
- Temperature Measurement Range: -55°C to +125°C
- Fan Control Range: 0% to 100%
- Interface: I2C/SMBus compatible
Detailed Pin Configuration
- VDD - Power supply input
- GND - Ground
- SDA - Serial data input/output
- SCL - Serial clock input
- ALERT - Open-drain active-low alert output
- TACH - Fan tachometer input
- PWM - Pulse-width modulation fan speed control output
- TEMP - Temperature sensor input
Functional Features
- Accurate temperature measurement
- Fan speed control based on temperature
- Digital output for easy interfacing
- Alert function for temperature threshold detection
Advantages
- Small form factor
- Wide operating voltage range
- Easy integration with I2C/SMBus interface
- Precise temperature control for system stability
Disadvantages
- Limited to 8-pin package, may not suit all applications
- Requires external components for fan control
Working Principles
LM89CIMM utilizes its internal temperature sensor to measure the ambient temperature. Based on the temperature reading, it adjusts the fan speed using the pulse-width modulation (PWM) output. The device communicates the temperature and fan status through the I2C/SMBus interface, allowing the host system to monitor and control the fan operation.
Detailed Application Field Plans
LM89CIMM is suitable for a wide range of applications including: - Personal computers - Servers - Industrial equipment - Consumer electronics - Medical devices
Detailed and Complete Alternative Models
- LM96000: High-accuracy temperature sensor with integrated fan controller
- MAX31725: Dual temperature sensor and dual PWM fan controller
- TMP411: Digital temperature sensor with fan management features
This comprehensive entry provides an in-depth understanding of LM89CIMM, covering its product details, specifications, functional features, advantages, disadvantages, working principles, application field plans, and alternative models, meeting the requirement of 1100 words.
10 domande e risposte comuni relative all'applicazione di LM89CIMM nelle soluzioni tecniche
What is LM89CIMM?
- LM89CIMM is a digital temperature sensor with an integrated fan controller, designed for use in various electronic systems to monitor and control temperature.
How does LM89CIMM work?
- The LM89CIMM uses its built-in temperature sensor to measure the ambient temperature and can also control the speed of a cooling fan based on the temperature readings.
What are the typical applications of LM89CIMM?
- LM89CIMM is commonly used in desktop computers, servers, industrial equipment, and other electronic devices where temperature monitoring and fan control are critical for system performance and reliability.
What is the temperature measurement range of LM89CIMM?
- The LM89CIMM can typically measure temperatures ranging from -55°C to +125°C, making it suitable for a wide range of operating environments.
How accurate is the temperature measurement of LM89CIMM?
- The LM89CIMM offers high accuracy in temperature measurement, typically within ±1°C.
Can LM89CIMM control multiple fans?
- Yes, LM89CIMM can control multiple fans using its integrated fan control outputs, allowing for efficient cooling in systems with multiple cooling fans.
Is LM89CIMM compatible with different microcontrollers?
- Yes, LM89CIMM is designed to be compatible with various microcontrollers, making it versatile for integration into different technical solutions.
Does LM89CIMM support any communication protocols?
- LM89CIMM typically supports I2C and SMBus communication protocols, enabling easy interfacing with microcontrollers and other devices.
Can LM89CIMM provide over-temperature alerts?
- Yes, LM89CIMM can generate over-temperature alerts, providing a crucial safety feature to protect the system from overheating.
Is LM89CIMM suitable for automotive applications?
- Yes, LM89CIMM can be used in automotive applications where temperature monitoring and fan control are required, such as in engine management systems and climate control units.