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Name: LMV7239M5X
Brand: Texas Instruments
SKU: LMV7239M5X
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 LMV7239M5X

Part No.:: LMV7239M5X

Manufacturer:: Texas Instruments

Package:: SC-74A, SOT-753

Datasheet:: LMV7239M5X.pdf

Description:: IC COMP ULP R-R INPUT SOT23-5

In Stock:: 2499

Quantity:: Add To Cart

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LMV7239M5X Specifications

Package/Case:
SC-74A, SOT-753
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Not For New Designs
Type:
General Purpose
NumberofElements:
1
OutputType:
Push-Pull, Rail-to-Rail
Voltage-SupplySingle/Dual(±):
2.7V ~ 5.5V
Voltage-InputOffset(Max):
6mV @ 5V
Current-InputBias(Max):
0.4µA @ 5V
Current-Output(Typ):
-
Current-Quiescent(Max):
95µA
CMRRPSRR(Typ):
67dB CMRR, 85dB PSRR
PropagationDelay(Max):
62ns
Hysteresis:
-
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

LMV7239M5X this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including LMV7239M5X 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 LMV7239M5X 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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LMV7239M5X information

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LMV7239M5X Typical application Circuitry

LMV7239M5X

LMV7239M5X is a low-power, low-voltage comparator from Texas Instruments, featuring a rail-to-rail input and an open-drain output. It operates with a supply voltage range from 2.7V to 5.5V, making it an excellent choice for battery-operated devices, portable electronics, and systems where power efficiency is critical. The device comes in a tiny SOT-23-5 package, which is ideal for space-constrained applications.

Application Scenario

A typical application for LMV7239M5X is in a power management system for a portable device, where it can be used to monitor the charge status of the battery and signal when the battery voltage falls below a predetermined threshold, indicating a low battery condition.

Parameter Features

- Supply Voltage Range: 2.7V to 5.5V, accommodating a wide array of low-voltage applications.

- Low Power Consumption: Ensures minimal drain on the battery, extending the operational life of portable devices.

- Output Type: Open-drain, facilitating easy interface with different logic levels and allowing for wired-OR configurations.

- Rail-to-Rail Input: Enables the comparator to handle input signals that extend all the way to the supply rails.

Circuit Design Considerations

When integrating LMV7239M5X into a circuit, it's important to consider the input signal levels, ensuring they do not exceed the supply voltage. Additionally, the selection of an appropriate pull-up resistor for the open-drain output is crucial, as is the stability of the power supply and the cleanliness of the input signals to avoid false triggering.

Detailed Circuit Connection

Supply Voltage

Connect the device's VCC pin (pin 5) to a clean, stable power source within the 2.7V to 5.5V range. This ensures proper operation within the specified supply voltage range of LMV7239M5X.

Reference Voltage

Establish a reference voltage at the non-inverting input (IN+, pin 3) using a stable voltage reference or a resistor divider network from the supply voltage. This reference voltage will serve as the threshold for battery voltage monitoring.

Monitoring Input

Connect the battery voltage, possibly through a voltage divider to scale the voltage appropriately, to the inverting input (IN-, pin 2). This configuration allows LMV7239M5X to compare the battery voltage against the set reference threshold.

Output Configuration

Since the OUT pin (pin 1) is open-drain, attach a pull-up resistor to this pin, leading to VCC or another acceptable voltage level within the device's operating range. The choice of the pull-up resistor value influences the output logic level and should be compatible with the input logic levels of subsequent stages in the circuit.

Ground Connection

The GND pin (pin 4) must be securely connected to the system's ground to ensure a stable reference point for the comparator's operations.

In circuits utilizing LMV7239M5X, careful attention should be paid to the layout to minimize noise, particularly on the input and supply lines, as noise can lead to spurious comparator outputs. The design of the voltage divider (if used) should balance between minimizing power consumption and maintaining sufficient accuracy for the battery voltage monitoring function. Proper decoupling near the power supply pin is also recommended to ensure stable operation of the comparator.

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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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