MAX4372HEUK+TG40

Product Overview

• Category: Integrated Circuit (IC)
• Use: Current Sense Amplifier
• Characteristics: High precision, low offset voltage, wide input voltage range
• Package: SOT23-5
• Essence: The MAX4372HEUK+TG40 is a current sense amplifier designed for accurate measurement of current in various applications.
• Packaging/Quantity: Available in tape and reel packaging with 3000 units per reel.

Specifications

• Supply Voltage Range: 2.7V to 28V
• Input Common Mode Voltage Range: -0.1V to +28V
• Output Voltage Swing: 0V to VCC-1.2V
• Gain Bandwidth Product: 500kHz
• Quiescent Current: 50µA (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MAX4372HEUK+TG40 has a total of 5 pins arranged as follows:

```

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| | --| IN- OUT |-- --| IN+ GND |-- --| REF VCC |-- |___________| ```

• IN-: Inverting Input
• OUT: Output
• IN+: Non-Inverting Input
• GND: Ground
• REF: Reference Voltage
• VCC: Supply Voltage

Functional Features

• High accuracy current sensing
• Low offset voltage for precise measurements
• Wide input voltage range allows for versatile applications
• Rail-to-rail output swing for maximum signal integrity
• Low quiescent current for power efficiency
• Thermal shutdown protection

Advantages and Disadvantages

Advantages

• High precision current sensing
• Wide input voltage range for flexibility
• Low offset voltage ensures accurate measurements
• Compact SOT23-5 package for space-constrained designs
• Thermal shutdown protection prevents damage due to overheating

Disadvantages

• Limited gain bandwidth product compared to some alternative models
• Higher quiescent current compared to certain low-power amplifiers

Working Principles

The MAX4372HEUK+TG40 is a current sense amplifier that utilizes a differential input configuration to accurately measure current. It amplifies the voltage drop across a shunt resistor in series with the load and provides an output voltage proportional to the sensed current. The amplifier's high precision and low offset voltage ensure accurate current measurements.

Detailed Application Field Plans

The MAX4372HEUK+TG40 can be used in various applications where precise current sensing is required. Some potential application fields include:

1. Power management systems
2. Battery charging and monitoring
3. Motor control systems
4. Overcurrent protection circuits
5. Current monitoring in industrial equipment
6. Solar power systems
7. LED lighting control

Detailed and Complete Alternative Models

1. INA219: High-side current/power monitor with I2C interface
2. LTC6101: Precision high-side current sense amplifier
3. AD8210: High common-mode voltage, bidirectional current shunt monitor
4. MAX4080: Precision, high-side current-sense amplifier with voltage output
5. MCP6V01: Zero-drift, high-side current sense amplifier

These alternative models offer similar functionality and can be considered based on specific requirements and design constraints.

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