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Name: INA138NA/250G4
Brand: Texas Instruments
SKU: INA138NA/250G4
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 INA138NA/250G4

Part No.:: INA138NA/250G4

Manufacturer:: Texas Instruments

Package:: SC-74A, SOT-753

Datasheet:: INA138NA/250G4.pdf

Description:: IC CURRENT MONITOR 0.5% SOT23-5

In Stock:: 2191

Quantity:: Add To Cart

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INA138NA/250G4 Specifications

Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Discontinued at Mosen
Function:
Current Monitor
SensingMethod:
High-Side
Accuracy:
±0.5%
Voltage-Input:
2.7V ~ 36V
Current-Output:
-
OperatingTemperature:
-40°C ~ 125°C
MountingType:
Surface Mount

INA138NA/250G4 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including INA138NA/250G4 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 INA138NA/250G4 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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INA138NA/250G4 information

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INA138NA/250G4 Typical application Circuitry

INA138NA/250G4

The INA138NA/250G4 is part of the INA138 series of components, which are widely acknowledged for their proficiency in high-side current sensing applications, bringing forth a delicate balance of accuracy, low power consumption, and ease of interfacing with various measurement circuits.

The INA138NA/250G4, particularly, is identified for its high-side measurement capability, which ensures that it can accurately monitor the current flowing through a load while being situated on the high-side of the power source, ensuring safety and isolation in applications such as battery management and over-current protection.

1. Power Terminals:

- VS (Pin 5): Connecting to the supply voltage, this pin ensures that the INA138NA/250G4 is endowed with the necessary power for operation, typically accepting voltages up to 36V.

- GND (Pin 4): Establishing the common voltage reference across the circuit, this ground pin should be connected to the system ground.

2. Sensing Dynamics:

- IN+ (Pin 3) and IN- (Pin 2): These two pins are entrusted with the crucial task of interfacing with the sense resistor (Rs). IN+ connects to the higher potential side of Rs, and IN- connects to the lower potential side, enabling the INA138NA/250G4 to accurately gauge the voltage drop across Rs, thereby interpreting the current through it.

3. Output Expressions:

- OUT (Pin 1): Transmitting the transduced signal, this pin can interface with an ADC (Analog-to-Digital Converter) or any relevant measurement circuit to interpret the sensed current. The output voltage (Vout) is linearly proportional to the input differential voltage (Vin = V(IN+) - V(IN-)) and can be expressed as: Vout = (Vin/Rs) * Rl, where Rl is the load resistor connected to the OUT pin.

4. Filtering:

- Cf (Pin 6): The INA138NA/250G4 provides an option to connect a filter capacitor Cf at this pin to mitigate noise and stabilize the output, especially crucial in environments replete with electrical noise.

5. Safety Net: Employing a bypass capacitor (typically 0.1 µF) close to the VS pin (Pin 5) of the INA138NA/250G4 assists in stabilizing the supply voltage and fortifying against voltage transients.

6. Output Resistor (Rl): Wisely selecting Rl ensures that the output voltage remains within a readable range for subsequent circuits while also managing the power dissipation within the INA138NA/250G4.

7. Sense Resistor (Rs): The selection of Rs is vital to ensure accurate current sensing while maintaining minimal power loss through it.

Conclusively, the INA138NA/250G4 unveils a world where precise high-side current sensing converges with practical applicability, offering engineers and designers a tool that is not only adept at precise current measurement but also exemplary in ensuring the safety and efficacy of electrical and electronic systems.

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6. What is the process for return or replacement of INA138NA/250G4?

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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.

(2)We are informed of the defect described above within 90 days after the delivery of INA138NA/250G4.

(3)The PartNo is unused and only in the original unpacked packaging.

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(1)Inform us within 90 days

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