DRV1101U/2K5

Product Overview

Category: Integrated Circuits (ICs)

Use: The DRV1101U/2K5 is a high-side current sense amplifier designed for use in motor control applications. It is specifically tailored for driving brushed DC motors, solenoids, and other loads that require accurate current sensing.

Characteristics: - High accuracy current sensing - Wide input voltage range - Low offset voltage - Adjustable gain - Overcurrent protection - Thermal shutdown protection

Package: The DRV1101U/2K5 is available in a small 8-pin SOIC package, which allows for easy integration into various circuit designs.

Essence: The essence of the DRV1101U/2K5 lies in its ability to accurately measure and amplify current signals, enabling precise control of motor-driven systems.

Packaging/Quantity: The DRV1101U/2K5 is typically sold in reels containing 2500 units per reel.

Specifications

• Supply Voltage Range: 4.5V to 40V
• Input Common Mode Voltage Range: -0.3V to VCC + 0.3V
• Output Voltage Swing: 0V to VCC
• Gain Range: 20V/V to 100V/V
• Quiescent Current: 1.2mA
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The DRV1101U/2K5 features the following pin configuration:

```

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

Functional Features

1. High Accuracy Current Sensing: The DRV1101U/2K5 provides precise current sensing capabilities, allowing for accurate monitoring and control of motor currents.

2. Wide Input Voltage Range: With a supply voltage range of 4.5V to 40V, the DRV1101U/2K5 can be used in a variety of applications with different power requirements.

3. Adjustable Gain: The gain of the amplifier can be adjusted from 20V/V to 100V/V, providing flexibility in matching the sensitivity to specific system requirements.

4. Overcurrent Protection: The DRV1101U/2K5 incorporates overcurrent protection, which helps prevent damage to the motor or other loads in case of excessive current flow.

5. Thermal Shutdown Protection: To safeguard against overheating, the DRV1101U/2K5 includes thermal shutdown protection, automatically disabling the device when the temperature exceeds a certain threshold.

Advantages and Disadvantages

Advantages: - Accurate current sensing for precise control - Wide input voltage range allows for versatile application - Adjustable gain provides flexibility - Overcurrent and thermal shutdown protection enhance system safety

Disadvantages: - Limited to high-side current sensing applications - Requires external components for complete motor control implementation

Working Principles

The DRV1101U/2K5 operates by amplifying the voltage difference across a sense resistor connected in series with the load (e.g., motor). This amplified voltage signal is then fed into an external microcontroller or motor driver circuit for further processing and control.

Detailed Application Field Plans

The DRV1101U/2K5 finds extensive use in various motor control applications, including: - Robotics - Industrial automation - Automotive systems - HVAC (Heating, Ventilation, and Air Conditioning) - Consumer electronics

Alternative Models

For those seeking alternative options, the following models offer similar functionality to the DRV1101U/2K5: - DRV1101U/2K4 - DRV1101U/2K6 - DRV1101U/2K7

These models provide comparable features and can be considered as alternatives based on specific application requirements.

In conclusion, the DRV1101U/2K5 is a versatile high-side current sense amplifier designed for accurate current sensing in motor control applications. Its wide input voltage range, adjustable gain, and built-in protection features make it an excellent choice for various industries.