LOG104AID

Product Overview

Category: Integrated Circuit (IC)

Use: LOG104AID is a voltage output current sense amplifier designed for use in various applications, including power management and motor control systems.

Characteristics: - Voltage Output: The LOG104AID provides a voltage output proportional to the sensed current. - High Accuracy: It offers high accuracy in current sensing, making it suitable for precise measurements. - Low Power Consumption: The IC operates at low power, ensuring energy efficiency. - Wide Input Range: It can handle a wide range of input currents, allowing flexibility in different applications.

Package: The LOG104AID is available in a small outline package (SOIC) with eight pins.

Essence: This IC serves as a current sense amplifier, providing accurate voltage output proportional to the sensed current.

Packaging/Quantity: The LOG104AID is typically sold in reels containing 250 units per reel.

Specifications

• Supply Voltage: 2.7V to 36V
• Input Current Range: -1A to +1A
• Output Voltage Range: 0V to Vcc
• Gain Bandwidth Product: 500kHz
• Quiescent Current: 100µA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LOG104AID has the following pin configuration:

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| | --| IN+ OUT |-- Pin 1: IN+ (Positive Current Sense Input) --| IN- GND |-- Pin 2: IN- (Negative Current Sense Input) --| REF VCC |-- Pin 3: REF (Reference Voltage Input) --| VCC NC |-- Pin 4: VCC (Supply Voltage) --| GND NC |-- Pin 5: GND (Ground) --| NC NC |-- Pin 6: Not Connected --| NC OUT |-- Pin 7: Not Connected --| NC NC |-- Pin 8: Not Connected |___________| ```

Functional Features

• Current Sensing: The LOG104AID accurately senses the current flowing through the inputs and provides a proportional voltage output.
• Voltage Output: It generates an output voltage that is directly proportional to the sensed current, allowing for easy interfacing with other circuitry.
• Wide Input Range: The IC can handle both positive and negative currents within its specified range, making it versatile for various applications.
• Low Offset Voltage: The LOG104AID exhibits low offset voltage, ensuring accurate current measurements.
• Overcurrent Protection: It incorporates overcurrent protection features to safeguard the circuitry from excessive currents.

Advantages and Disadvantages

Advantages: - High accuracy in current sensing - Wide input range for flexibility - Low power consumption - Compact package size - Overcurrent protection

Disadvantages: - Limited output voltage range - Requires external reference voltage

Working Principles

The LOG104AID operates based on the principle of current sensing. It measures the current flowing through the inputs and converts it into a proportional voltage output. This voltage output can then be used for further processing or monitoring purposes. The IC utilizes internal circuitry to amplify and convert the sensed current into an accurate voltage representation.

Application Field Plans

The LOG104AID finds application in various fields, including: 1. Power Management Systems: It can be used in power management circuits to monitor and control current flow. 2. Motor Control Systems: The IC enables precise current sensing in motor control systems, facilitating efficient operation and protection. 3. Battery Management: It can be employed in battery management systems to monitor charging and discharging currents accurately. 4. Industrial Automation: The LOG104AID is suitable for current sensing in industrial automation applications, such as robotics and control systems.

Alternative Models

1. LOG104BID: This model offers similar functionality but with a higher gain bandwidth product of 1MHz.
2. LOG104CID: It provides enhanced accuracy and lower offset voltage compared to the LOG104AID.
3. LOG104DID: This alternative model features a wider input current range (-2A to +2A) for applications requiring higher current sensing capabilities.

These alternative models offer different specifications and features, allowing users to choose the most suitable option based on their specific requirements.

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