INA169NA/3K

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INA169NA/3K

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IC CURRENT MONITOR 0.5% SOT23-5

  • HerstellerTexas Instruments

  • Herstellerteil #INA169NA/3K

  • Paket SOT-23 (DBV)-5

  • Auf Lager1967

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7*24 Stunden-Servicegarantie

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Spezifikationen

Attribut Wert
Package Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus Active
Function Current Monitor
SensingMethod High-Side
Accuracy ±0.5%
Voltage-Input 2.7V ~ 60V
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case SC-74A, SOT-753

Übersicht

Description

The INA169NA/3K is a precision, high-side current shunt monitor from Texas Instruments. It is designed to sense the voltage across a shunt resistor and output a proportional current, making it ideal for current measurement applications. The device operates from a single power supply voltage of 2.7V to 60V and can handle common-mode voltages from 0V to 60V, even while connected to a 5V supply. It offers a gain of 1 mA/V, allowing for easy conversion of a voltage drop across the shunt resistor to an output current that can be translated into a voltage with an external load resistor. The INA169NA/3K features low offset voltage, low output error, and high accuracy, which are crucial for precise current measurements. Its small SOT-23 package makes it suitable for space-constrained applications. Typical uses include battery management systems, power management in telecommunications, and general-purpose current sensing in industrial and automotive applications. Its simplicity and versatility make it a popular choice for designers needing reliable current sensing solutions.

Equivalent

The INA169NA/3K is a current-shunt monitor designed by Texas Instruments. Equivalent products from other manufacturers include:
1. MAX4080: A high-side current-sense amplifier from Maxim Integrated.
2. LT6100: A high-side current-sense amplifier by Analog Devices (formerly Linear Technology).
3. ZXCT1009: A high-side current monitor from Diodes Incorporated.
4. ISL28006: A current-sense amplifier by Renesas Electronics.
These alternatives offer similar functionality and performance characteristics for monitoring current flow.

Features

The INA169NA/3K is a high-side, unidirectional current shunt monitor from Texas Instruments. Key features include:
1. Wide Supply Voltage Range: Operates from 2.7 V to 60 V, making it versatile for various applications.
2. High Accuracy: Offers accurate current measurement with a low offset voltage of 500 µV and a gain error of 1.5%.
3. Wide Input Common-Mode Voltage Range: Operates over a wide range of 0 V to 60 V, regardless of the supply voltage.
4. Current Output: Provides a current output proportional to the input differential voltage, simplifying interfacing with analog-to-digital converters.
5. Low Quiescent Current: Consumes just 60 µA, which aids in power-sensitive applications.
6. Temperature Range: Operates over an industrial temperature range from –40°C to 125°C.
7. Package: Available in an SOT-23 package, allowing for compact circuit designs.
These features make the INA169NA/3K suitable for applications in power management, battery charging, automotive, and industrial systems.

Pinout

The INA169NA/3K is a precision, high-side current shunt monitor from Texas Instruments, typically supplied in an 8-pin SOIC (Small Outline Integrated Circuit) package. However, the functional pin count for direct operation is generally fewer than eight.
Key pins and their main functions are:
1. VIN+: Positive input voltage pin where the high-side connection is made.
2. VIN-: Negative input voltage pin connected to the load side.
3. OUT: Output pin where the device provides a current proportional to the voltage difference across the shunt resistor.
4. REF: Reference voltage pin, used to set the output voltage reference.
5. GND: Ground pin for the device.
The device monitors current by measuring the voltage drop across a shunt resistor and outputs a current proportional to that voltage. The remaining pins in the package may include additional connections for power supply or are unused, depending on the specific application and configuration. Always refer to the official datasheet for precise pin functions and configurations.

Manufacturer

The INA169NA/3K is manufactured by Texas Instruments, a global semiconductor company. Texas Instruments (TI) designs and manufactures a wide range of semiconductor products, including analog chips and embedded processors, which are used in various electronic applications across industries such as automotive, industrial, personal electronics, and communications. Known for its innovation and contributions to technology, TI is a leader in the development of integrated circuits and other semiconductor devices. The company focuses on providing high-performance, reliable, and energy-efficient solutions to its customers worldwide.

Application

The INA169NA/3K is a current shunt monitor widely used for precision current measurement applications. Key application areas include:
1. Battery Management Systems: For monitoring and managing battery charge and discharge cycles.
2. Power Management: Used in DC-DC converters and power supplies to ensure accurate current monitoring and efficiency.
3. Automotive Systems: Employed in electric and hybrid electric vehicles for monitoring motor currents.
4. Telecommunications: Used in power distribution units and network equipment for current measurement.
5. Industrial Automation: For monitoring current in motors, pumps, and other machinery to ensure operational efficiency and safety.
These applications leverage the device's ability to measure current accurately across a wide common-mode range.

Package

The INA169NA/3K is an integrated circuit from Texas Instruments, typically housed in an 8-pin SOIC (Small Outline Integrated Circuit) package. This package type is designed for surface mounting on printed circuit boards (PCBs), offering a compact and efficient design suitable for current sensing applications.

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