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規格
| 屬性 | 價值 |
| Package / Case | Bulk |
| Series | Automotive, AEC-Q100, Zero-Drift |
| Part Status | Active |
| Amplifier Type | Current Sense |
| Number of Circuits | 1 |
| Slew Rate | 2V/µs |
| -3 dB Bandwidth | 400 kHz |
| Current - Input Bias | 90 µA |
| Voltage - Input Offset | 5 µV |
| Supply Current | 1.8mA |
| Voltage - Supply Span(Min) | 2.7 V |
| Voltage - Supply Span(Max) | 5.5 V |
| Operating Temperature | -40°C ~ 150°C (TA) |
| Mounting Type | Surface Mount |
概述
Description
The INA240A3EDRQ1 is a precision current shunt monitor from Texas Instruments designed for high-side, bidirectional current-sensing applications. It is part of the INA240 series, which features enhanced PWM rejection, making it particularly well-suited for use in environments with high-frequency switching, such as motor drives or power inverters.
This device operates over a wide supply voltage range and can handle common-mode voltages, making it versatile for different applications. It offers excellent accuracy and linearity, providing a precise proportional output voltage to the input differential voltage across a shunt resistor. The A3 version has a gain of 100 V/V, allowing for significant signal amplification, which is ideal for detecting small changes in current.
The INA240A3EDRQ1 includes features such as low offset voltage, low drift, and high CMRR (Common-Mode Rejection Ratio), ensuring stable and reliable performance over a range of conditions. It's available in a small package, making it easy to integrate into compact designs. Additionally, its automotive-qualified status makes it suitable for use in automotive applications.
This device operates over a wide supply voltage range and can handle common-mode voltages, making it versatile for different applications. It offers excellent accuracy and linearity, providing a precise proportional output voltage to the input differential voltage across a shunt resistor. The A3 version has a gain of 100 V/V, allowing for significant signal amplification, which is ideal for detecting small changes in current.
The INA240A3EDRQ1 includes features such as low offset voltage, low drift, and high CMRR (Common-Mode Rejection Ratio), ensuring stable and reliable performance over a range of conditions. It's available in a small package, making it easy to integrate into compact designs. Additionally, its automotive-qualified status makes it suitable for use in automotive applications.
Equivalent
The INA240A3EDRQ1 is a high-precision current sense amplifier. Equivalent products include:
1. Maxim Integrated MAX40080 - High-precision, low-voltage, current-sense amplifier with fast response.
2. Analog Devices AD8418A - Precision, high-voltage, high-resolution current sense amplifier.
3. Allegro Microsystems ACS712 - Current sensor with integrated Hall-effect sensor.
These alternatives vary slightly in specifications, so ensure compatibility based on specific application requirements.
1. Maxim Integrated MAX40080 - High-precision, low-voltage, current-sense amplifier with fast response.
2. Analog Devices AD8418A - Precision, high-voltage, high-resolution current sense amplifier.
3. Allegro Microsystems ACS712 - Current sensor with integrated Hall-effect sensor.
These alternatives vary slightly in specifications, so ensure compatibility based on specific application requirements.
Features
The INA240A3EDRQ1 is a high-precision current sense amplifier from Texas Instruments with several notable features:
1. Current Sensing: Capable of measuring bi-directional current across a shunt resistor with high accuracy.
2. Wide Common-Mode Voltage Range: Operates across a wide range of common-mode voltages from -4V to +80V, making it suitable for high-side or low-side current sensing.
3. Enhanced PWM Rejection: The amplifier has enhanced pulse-width modulation (PWM) rejection, crucial for applications involving motor control and switching power supplies.
4. Accuracy and Precision: Offers high precision with a low offset voltage and low drift over temperature, ensuring accurate current measurements.
5. Automotive Grade: It is AEC-Q100 qualified, making it suitable for automotive applications.
6. Temperature Range: Operates in a wide temperature range from -40°C to +125°C.
7. Amplification: Provides a fixed gain of 100 V/V.
These features make the INA240A3EDRQ1 ideal for applications like motor control, battery management, and other automotive and industrial systems requiring precise current measurement.
1. Current Sensing: Capable of measuring bi-directional current across a shunt resistor with high accuracy.
2. Wide Common-Mode Voltage Range: Operates across a wide range of common-mode voltages from -4V to +80V, making it suitable for high-side or low-side current sensing.
3. Enhanced PWM Rejection: The amplifier has enhanced pulse-width modulation (PWM) rejection, crucial for applications involving motor control and switching power supplies.
4. Accuracy and Precision: Offers high precision with a low offset voltage and low drift over temperature, ensuring accurate current measurements.
5. Automotive Grade: It is AEC-Q100 qualified, making it suitable for automotive applications.
6. Temperature Range: Operates in a wide temperature range from -40°C to +125°C.
7. Amplification: Provides a fixed gain of 100 V/V.
These features make the INA240A3EDRQ1 ideal for applications like motor control, battery management, and other automotive and industrial systems requiring precise current measurement.
Pinout
The INA240A3EDRQ1 is a current sense amplifier from Texas Instruments, designed for use in motor control applications and similar systems that require precise current measurements. It is part of the INA240 series which is known for its enhanced PWM rejection capabilities, making it suitable for environments with high-frequency switching.
The INA240A3EDRQ1 features an 8-pin package. The pin functions are as follows:
1. IN+ (Input Positive): Connects to the positive side of the shunt resistor.
2. IN- (Input Negative): Connects to the negative side of the shunt resistor.
3. REF1: Reference input, used to set the output reference voltage.
4. REF2: Second reference input, allowing for dual reference voltage inputs.
5. OUT (Output): Provides the output voltage, which is proportional to the differential input voltage.
6. GND (Ground): Common ground connection for the device.
7. VS (Supply Voltage): Power supply input.
8. NC (No Connection): Pin not internally connected and often used for mechanical stability in PCB designs.
This device is qualified for automotive applications (indicated by the "Q1" suffix) and is known for robustness and precision in harsh environments.
The INA240A3EDRQ1 features an 8-pin package. The pin functions are as follows:
1. IN+ (Input Positive): Connects to the positive side of the shunt resistor.
2. IN- (Input Negative): Connects to the negative side of the shunt resistor.
3. REF1: Reference input, used to set the output reference voltage.
4. REF2: Second reference input, allowing for dual reference voltage inputs.
5. OUT (Output): Provides the output voltage, which is proportional to the differential input voltage.
6. GND (Ground): Common ground connection for the device.
7. VS (Supply Voltage): Power supply input.
8. NC (No Connection): Pin not internally connected and often used for mechanical stability in PCB designs.
This device is qualified for automotive applications (indicated by the "Q1" suffix) and is known for robustness and precision in harsh environments.
Manufacturer
The INA240A3EDRQ1 is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a wide range of electronic components and systems. Their products are utilized in numerous applications across industries such as automotive, personal electronics, industrial, and communications. TI is particularly well-known for its development and manufacturing of analog and embedded processing products, such as amplifiers, data converters, microcontrollers, and processors. The INA240A3EDRQ1 is a current sense amplifier, which is part of TI's extensive portfolio of precision analog components. The company is headquartered in Dallas, Texas, and continues to be a significant player in the technology and electronics sectors, emphasizing innovation and high-quality product offerings.
Application
The INA240A3EDRQ1 is a precision current-sensing amplifier commonly used in various automotive and industrial applications due to its high accuracy and robustness. Key application areas include electric motor control systems, battery management systems, and power supply monitoring. It is also employed in applications such as DC-DC converters, inverters, and load detection systems where precise current measurement is crucial. Its ability to handle high common-mode voltages and its enhanced PWM rejection make it suitable for environments with switching noise or rapidly changing load conditions.
Package
The INA240A3EDRQ1 is packaged in an 8-pin VSSOP (Very Thin Shrink Small Outline Package) with a body size of approximately 3.00 mm x 3.00 mm. It is a part of the automotive-qualified series from Texas Instruments, designed for high-precision current sensing applications.