LM9061QDRQ1

Product Overview

Category: Integrated Circuit (IC)

Use: LM9061QDRQ1 is a high-side current sense amplifier designed for automotive applications. It is specifically used for monitoring and controlling the current flowing through various components in automotive systems.

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

Package: The LM9061QDRQ1 comes in a small outline package (SOIC) with 8 pins.

Essence: The essence of LM9061QDRQ1 lies in its ability to accurately measure and monitor the current flow in automotive systems, ensuring safe and efficient operation.

Packaging/Quantity: The LM9061QDRQ1 is typically sold in reels containing 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 40V
• Quiescent Current: 60µA
• Gain Bandwidth Product: 500kHz
• Output Voltage Swing: 0V to Vcc - 1.2V
• Overcurrent Threshold: Adjustable
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LM9061QDRQ1 has the following pin configuration:

1. IN+ (Positive Input): Connects to the high-side of the current-sensing resistor.
2. IN- (Negative Input): Connects to the low-side of the current-sensing resistor.
3. OUT (Output): Provides the amplified current sense voltage.
4. GND (Ground): Connects to the ground reference.
5. SET (Overcurrent Threshold Set): Sets the overcurrent threshold level.
6. NC (No Connection): Not connected.
7. Vcc (Supply Voltage): Connects to the positive supply voltage.
8. NC (No Connection): Not connected.

Functional Features

• High accuracy current sensing: The LM9061QDRQ1 provides precise measurement of current flow, ensuring accurate monitoring and control.
• Wide input voltage range: It can operate within a wide range of input voltages, making it suitable for various automotive systems.
• Low quiescent current: The IC consumes minimal current when not actively sensing, reducing power consumption.
• Overcurrent protection: The overcurrent threshold can be set to protect components from excessive current flow.
• Thermal shutdown protection: The IC automatically shuts down when the temperature exceeds a certain limit, preventing damage due to overheating.

Advantages and Disadvantages

Advantages: - Accurate current sensing - Wide input voltage range - Low power consumption - Overcurrent and thermal protection

Disadvantages: - Limited output voltage swing - Requires external current-sensing resistor

Working Principles

The LM9061QDRQ1 operates based on the principle of measuring the voltage drop across a current-sensing resistor. It amplifies this voltage drop and provides an output proportional to the current flowing through the resistor. By setting the overcurrent threshold, it can detect and respond to excessive current conditions.

Detailed Application Field Plans

The LM9061QDRQ1 is widely used in automotive applications, including but not limited to:

1. Battery management systems
2. Motor control units
3. Power distribution modules
4. Lighting systems
5. HVAC systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to LM9061QDRQ1 are:

1. INA199A2P: High-Side Measurement Current Shunt Monitor
2. MAX4080SASA+: Precision High-Side Current-Sense Amplifier
3. LT6106CMS8#PBF: Precision High-Side Current Monitor

These alternative models can be considered based on specific application requirements and design constraints.

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