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INA281A3IDBVR
+BOMIC CURR SENSE 1 CIRCUIT SOT23-5
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メーカーSTマイクロエレクトロニクス
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メーカー品番 #INA281A3IDBVR
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在庫状況4990
365 日間品質保証
7*24 日間の品質保証
90-時間単位のサービス保証
1日間のアフターサービス保証
仕様
| 属性 | 値 |
| Part Status | Active |
| Base Product Number | INA281 |
| Amplifier Type | Current Sense |
| Number of Circuits | 1 |
| Slew Rate | 2.5V/µs |
| Gain Bandwidth Product | 1 MHz |
| Current - Input Bias | 20 µA |
| Voltage - Input Offset | 30 µV |
| Current - Supply | 1.5mA |
| Voltage - Supply Span (Min) | 2.7 V |
| Voltage - Supply Span (Max) | 20 V |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount |
| Package | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 |
| Packaging | Cut Tape (CT), Tape & Reel (TR) |
概要
Description
The INA281A3IDBVR is a high-precision current sense amplifier developed by Texas Instruments. It is designed to measure voltage drops across shunt resistors in high-side or low-side configurations and convert them into a proportional output voltage. This model is part of the INA281 series, which features a fixed gain, low offset voltage, and a wide input common-mode range. Specifically, the INA281A3IDBVR offers a gain of 50 V/V.
Key specifications include:
- Wide common-mode voltage range: -4 V to +110 V
- High bandwidth: Up to 1 MHz
- Low offset voltage: Ensures accuracy in low current measurements
- Excellent CMRR: Enhances performance in noisy environments
Its compact SOT-23 package allows for space-efficient designs, making it suitable for applications like power management, motor control, and industrial systems. The device operates over a wide temperature range, ensuring reliability across various conditions. Overall, the INA281A3IDBVR is ideal for applications requiring accurate current sensing with a compact footprint.
Key specifications include:
- Wide common-mode voltage range: -4 V to +110 V
- High bandwidth: Up to 1 MHz
- Low offset voltage: Ensures accuracy in low current measurements
- Excellent CMRR: Enhances performance in noisy environments
Its compact SOT-23 package allows for space-efficient designs, making it suitable for applications like power management, motor control, and industrial systems. The device operates over a wide temperature range, ensuring reliability across various conditions. Overall, the INA281A3IDBVR is ideal for applications requiring accurate current sensing with a compact footprint.
Equivalent
Equivalent products to the INA281A3IDBVR, a high-precision current sense amplifier, include:
1. INA180 - Another Texas Instruments current shunt monitor with similar characteristics.
2. MAX4080 - A current-sense amplifier by Maxim Integrated.
3. LTC6102 - A high-side current sense amplifier from Analog Devices (formerly Linear Technology).
4. AD8418 - A high-precision current-sense amplifier by Analog Devices.
Ensure compatibility regarding voltage, gain, bandwidth, and package when considering alternatives.
1. INA180 - Another Texas Instruments current shunt monitor with similar characteristics.
2. MAX4080 - A current-sense amplifier by Maxim Integrated.
3. LTC6102 - A high-side current sense amplifier from Analog Devices (formerly Linear Technology).
4. AD8418 - A high-precision current-sense amplifier by Analog Devices.
Ensure compatibility regarding voltage, gain, bandwidth, and package when considering alternatives.
Features
The INA281A3IDBVR is a high-precision, bidirectional current sense amplifier from Texas Instruments. Key features include:
1. Wide Input Common-Mode Voltage Range: Operates from -4 V to +110 V, making it versatile for different applications.
2. High Accuracy: Offers low offset voltage with a typical value of 150 µV, contributing to precise current measurements.
3. Wide Bandwidth: Provides a bandwidth of 1 MHz, suitable for fast transient response applications.
4. High Gain Options: Available in multiple gain options, with the A3 version offering a gain of 100 V/V.
5. Low Power Consumption: Operates efficiently with a quiescent current of approximately 1.5 mA.
6. Bidirectional Current Sensing: Capable of measuring current in both directions.
7. Package: Comes in a small SOT-23 package, making it ideal for space-constrained designs.
8. Temperature Range: Functions over a wide temperature range of -40°C to +125°C, suitable for harsh environments.
This combination of features makes the INA281A3IDBVR well-suited for use in industrial, automotive, and consumer electronics applications for precise current monitoring.
1. Wide Input Common-Mode Voltage Range: Operates from -4 V to +110 V, making it versatile for different applications.
2. High Accuracy: Offers low offset voltage with a typical value of 150 µV, contributing to precise current measurements.
3. Wide Bandwidth: Provides a bandwidth of 1 MHz, suitable for fast transient response applications.
4. High Gain Options: Available in multiple gain options, with the A3 version offering a gain of 100 V/V.
5. Low Power Consumption: Operates efficiently with a quiescent current of approximately 1.5 mA.
6. Bidirectional Current Sensing: Capable of measuring current in both directions.
7. Package: Comes in a small SOT-23 package, making it ideal for space-constrained designs.
8. Temperature Range: Functions over a wide temperature range of -40°C to +125°C, suitable for harsh environments.
This combination of features makes the INA281A3IDBVR well-suited for use in industrial, automotive, and consumer electronics applications for precise current monitoring.
Pinout
The INA281A3IDBVR is a current sense amplifier from Texas Instruments. It is part of the INA281 series, designed for high-precision, high-side current sensing applications. The device is typically housed in a 6-pin SOT-23 package, which is a small-outline transistor package.
Here is a brief overview of the pin functions:
1. IN+: Positive input for the differential current sense signal.
2. IN-: Negative input for the differential current sense signal.
3. REF: Reference voltage input pin; used to set the output baseline voltage.
4. GND: Ground connection for the device.
5. OUT: Output pin that provides a voltage proportional to the sensed current.
6. VS: Supply voltage pin for powering the device.
The INA281 series is known for its high accuracy and fast response time, making it suitable for a wide range of current sensing applications.
Here is a brief overview of the pin functions:
1. IN+: Positive input for the differential current sense signal.
2. IN-: Negative input for the differential current sense signal.
3. REF: Reference voltage input pin; used to set the output baseline voltage.
4. GND: Ground connection for the device.
5. OUT: Output pin that provides a voltage proportional to the sensed current.
6. VS: Supply voltage pin for powering the device.
The INA281 series is known for its high accuracy and fast response time, making it suitable for a wide range of current sensing applications.
Manufacturer
The INA281A3IDBVR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a broad range of analog and embedded processing chips. TI focuses on developing innovative technologies that improve the efficiency, performance, and reliability of electronic systems. They cater to various industries, including automotive, industrial, consumer electronics, and communications. TI is known for its extensive portfolio of products, including amplifiers, data converters, power management devices, and microcontrollers, among others. The company is headquartered in Dallas, Texas, and is regarded as one of the leading semiconductor companies worldwide.
Application
The INA281A3IDBVR is a high-side current sense amplifier used in various applications. Key areas include power management systems, where it provides accurate current monitoring for overcurrent detection and power efficiency optimization. It's commonly used in battery management systems, helping monitor charge and discharge currents to ensure battery safety and longevity. In automotive applications, the INA281A3IDBVR aids in monitoring electrical loads to improve system reliability. It's also used in telecommunications and server power supplies to maintain system stability and performance. Additionally, industrial automation systems employ it for motor control and protection, ensuring efficient operation and preventing damage due to overcurrent conditions.
Package
The INA281A3IDBVR is packaged in a SOT-23-6 (Small Outline Transistor) configuration. This compact package is commonly used for surface-mounted devices, providing a balance between size and thermal performance.
