INA199A3RSWT

Product Overview

Category: Integrated Circuit (IC)
Use: Current Shunt Monitor
Characteristics: High accuracy, low offset voltage, wide common-mode voltage range
Package: 8-pin VSSOP package
Essence: Monitors current flowing through a shunt resistor
Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel

Specifications

Supply Voltage: 2.7V to 5.5V
Common-Mode Voltage Range: -16V to +80V
Input Offset Voltage: ±150µV (maximum)
Gain Error: ±0.25% (maximum)
Bandwidth: 500kHz (typical)
Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

OUT: Output pin
REF: Reference voltage input pin
IN+: Positive differential input pin
IN-: Negative differential input pin
GND: Ground pin
SET: External gain setting pin
VCC: Power supply pin
NC: No connection pin

Functional Features

High accuracy current sensing
Wide common-mode voltage range allows for versatile applications
Low offset voltage ensures precise measurements
External gain setting pin provides flexibility in gain configuration
Fast response time with a bandwidth of 500kHz

Advantages

Accurate current monitoring in various applications
Wide operating voltage range enables compatibility with different systems
Small package size saves board space
Low power consumption
Easy to integrate into existing designs

Disadvantages

Limited maximum common-mode voltage range compared to some other models
Requires an external gain setting pin for adjusting the gain

Working Principles

The INA199A3RSWT is a current shunt monitor IC that measures the voltage drop across a shunt resistor to determine the current flowing through it. It utilizes a differential amplifier configuration to amplify the small voltage across the shunt resistor and provide an accurate representation of the current. The external gain setting pin allows for adjusting the gain according to the specific application requirements.

Detailed Application Field Plans

The INA199A3RSWT is commonly used in various applications where precise current monitoring is essential. Some of the typical application fields include:

Power management systems
Battery charging and discharging circuits
Motor control systems
Solar power systems
Industrial automation
Automotive electronics
Test and measurement equipment

Detailed and Complete Alternative Models

INA199A1RSWT: Single-channel version with similar specifications
INA199A2RSWT: Dual-channel version with similar specifications
INA199B3RSWT: Higher precision version with improved specifications
INA199C3RSWT: Lower power consumption version with reduced specifications

(Note: This list is not exhaustive, and there may be other alternative models available from different manufacturers.)

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Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von INA199A3RSWT in technischen Lösungen auf

Sure! Here are 10 common questions and answers related to the application of INA199A3RSWT in technical solutions:

Q: What is the INA199A3RSWT? A: The INA199A3RSWT is a high-side current shunt monitor IC (integrated circuit) that can accurately measure current flowing through a shunt resistor.
Q: What is the purpose of using the INA199A3RSWT in technical solutions? A: The INA199A3RSWT is commonly used to monitor and measure current in various applications, such as power supplies, motor control, battery management systems, and industrial automation.
Q: How does the INA199A3RSWT work? A: The INA199A3RSWT measures the voltage drop across a shunt resistor and converts it into a proportional output voltage, which can be easily measured by a microcontroller or other monitoring devices.
Q: What is the maximum current range that the INA199A3RSWT can handle? A: The INA199A3RSWT can handle a maximum current range of ±20A.
Q: Can the INA199A3RSWT operate with different supply voltages? A: Yes, the INA199A3RSWT can operate with supply voltages ranging from 2.7V to 26V.
Q: Is the INA199A3RSWT suitable for high-precision current measurements? A: Yes, the INA199A3RSWT has a low offset voltage and excellent linearity, making it suitable for high-precision current measurements.
Q: Does the INA199A3RSWT provide any built-in protection features? A: Yes, the INA199A3RSWT includes overcurrent detection and thermal shutdown protection to ensure safe operation.
Q: Can the INA199A3RSWT be used in automotive applications? A: Yes, the INA199A3RSWT is AEC-Q100 qualified, making it suitable for automotive applications that require high reliability and performance.
Q: Are there any evaluation boards or reference designs available for the INA199A3RSWT? A: Yes, Texas Instruments provides evaluation modules and reference designs that can help users quickly prototype and implement the INA199A3RSWT in their applications.
Q: Where can I find more detailed information about the INA199A3RSWT? A: You can find more detailed information, including datasheets, application notes, and technical support, on the official website of Texas Instruments or by contacting their customer support team.