What is the Additional Feature ?

Name: INA169NA/3KG4
Brand: Texas Instruments
SKU: INA169NA/3KG4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Texas Instruments INA169NA/3KG4

Part No.:: INA169NA/3KG4

Manufacturer:: Texas Instruments

Package:: SC-74A, SOT-753

Datasheet:: INA169NA/3KG4.pdf

Description:: IC CURRENT MONITOR 0.5% SOT23-5

In Stock:: 3180

Quantity:: Add To Cart

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INA169NA/3KG4 Specifications

Packaging:
Tape & Reel (TR)
Series:
-
ProductStatus:
Discontinued at Mosen
Function:
Current Monitor
SensingMethod:
High-Side
Accuracy:
±0.5%
Voltage-Input:
2.7V ~ 60V
Current-Output:
-
OperatingTemperature:
-40°C ~ 85°C (TA)
MountingType:
Surface Mount

INA169NA/3KG4 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including INA169NA/3KG4 price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for INA169NA/3KG4 to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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INA169NA/3KG4 information

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INA169NA/3KG4 Typical application Circuitry

INA169NA 3KG4

INA169NA/3KG4 is a variant of the INA169 high-side current shunt monitor, designed to accurately measure current across a shunt resistor situated in the high side of the circuit, between the power supply and the load. This IC is particularly useful in applications requiring precise current monitoring without disrupting the ground path, making it versatile for various electronic systems.

Application Scenarios

INA169NA/3KG4 is widely employed in systems like battery management, solar power regulators, automotive applications, and any other system where monitoring the current flow is crucial for operational efficiency and safety.

Parameter Features

- High-Side Monitoring: Facilitates current measurement at the supply side, offering isolation and enhanced safety.

- Broad Input Voltage Range: Supports a wide range of input voltages, making it adaptable to numerous applications.

- Analog Voltage Output: Delivers an output voltage proportional to the current, simplifying integration with ADCs or microcontroller units for further processing.

Circuit Connection in a Solar Power Regulator

In the context of a solar power regulator application, INA169NA/3KG4 can be utilized to monitor the charging current from the solar panel to the battery. Detailed connection guidance includes:

- Power Supply to IC: Connect the V+ pin (pin 8) of INA169NA/3KG4 to the positive terminal of the solar panel. This connection powers the IC and establishes the high-side measurement point.

- Shunt Resistor Implementation: Insert a shunt resistor between the solar panel's positive output and the battery's positive terminal. Connect one end of this resistor to the Rs+ pin (pin 7) of INA169NA/3KG4. The battery side of the shunt resistor should connect to the Rs- pin (pin 1), which ties back to the battery's positive terminal.

- Ground Connection: Link the GND pin (pin 5) of INA169NA/3KG4 to the system's ground. This common ground is essential for accurate measurements.

- Output Voltage to Monitoring Circuit: The Vout pin (pin 6) on INA169NA/3KG4 outputs an analog voltage proportional to the current through the shunt resistor. This output can be fed into an ADC for digital analysis or to an analog display for real-time monitoring.

- Adjusting Output Scaling: To adapt the output voltage range to specific needs, you can connect a resistor from the Ref pin (pin 4) to ground. This resistor adjusts the gain, thereby scaling the output voltage to match the input range of an ADC or other monitoring devices.

Design Considerations

When incorporating INA169NA/3KG4 into a circuit, several important factors must be considered:

- Choice of Shunt Resistor: The shunt resistor's value is critical; it must be low enough to minimize power loss and voltage drop but high enough to provide a measurable voltage drop for accurate current measurement.

- Heat Dissipation: Be mindful of the heat generated by the shunt resistor, especially in high-current applications. Adequate heat sinking or airflow may be required to maintain accuracy.

- Voltage Drop Impact: Ensure that the voltage drop across the shunt does not adversely affect the load, particularly in low-voltage applications.

- Noise and Interference: Given the high-side location, the circuit may be susceptible to noise. Implementing filtering on the output and careful PCB layout can help mitigate these effects.

Incorporating INA169NA/3KG4 into a solar power regulator demands careful attention to the shunt resistor selection, thermal management, and potential impacts of voltage drop and noise. By addressing these factors, the device can provide precise current monitoring, enhancing the regulator's performance and reliability.

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(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

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