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Texas Instruments LMV7219M5X/NOPB

Part No.:: LMV7219M5X/NOPB

Manufacturer:: Texas Instruments

Package:: SC-74A, SOT-753

Datasheet:: LMV7219M5X/NOPB.pdf

Description:: IC COMPARATOR 2.7V-5V RR SOT23-5

In Stock:: 2930

Quantity:: Add To Cart

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LMV7219M5X/NOPB Specifications

Package/Case:
SC-74A, SOT-753
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
Type:
General Purpose
NumberofElements:
1
OutputType:
Push-Pull, Rail-to-Rail
Voltage-SupplySingle/Dual(±):
2.7V ~ 5V
Voltage-InputOffset(Max):
6mV @ 5V
Current-InputBias(Max):
0.95µA @ 5V
Current-Output(Typ):
-
Current-Quiescent(Max):
1.8mA
CMRRPSRR(Typ):
85dB CMRR, 85dB PSRR
PropagationDelay(Max):
20ns
Hysteresis:
7.5mV
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

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LMV7219M5X/NOPB information

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LMV7219M5X/NOPB Typical application Circuitry

LMV7219M5X NOPB

LMV7219M5X/NOPB is a high-speed, low-power comparator with rail-to-rail input capability, designed by Texas Instruments. It operates from a 2.7V to 5V supply voltage, making it suitable for a wide range of applications from battery-operated devices to general-purpose signal comparison tasks. The "NOPB" suffix indicates that the product is provided in a lead-free ("No Lead") package, emphasizing environmental compliance.

Application Scenario

A common application for LMV7219M5X/NOPB is in a voltage level detection circuit within energy-efficient systems, such as solar power monitoring devices, where it can serve to compare the output voltage of a solar panel to a predetermined threshold, indicating whether the voltage level is sufficient for charging a battery or powering a load.

Parameter Features

- Supply Voltage Range: 2.7V to 5V, accommodating both 3.3V and 5V systems.

- Low Power Consumption: Minimizes power drain, ideal for portable and battery-operated applications.

- High Speed: Features a fast response time, suitable for applications requiring quick signal comparison.

- Output Type: Push-pull output, facilitating direct drive capability without the need for an external pull-up resistor.

Circuit Design Considerations

When incorporating LMV7219M5X/NOPB into a design, it's important to ensure the input signal does not exceed the supply voltage, to provide a clean and stable power supply, and to consider the loading on the output to ensure the comparator can drive the subsequent stage effectively.

Detailed Circuit Connection

Supply Voltage Connection

Connect the VCC pin (pin 5) of LMV7219M5X/NOPB to a stable power source within the 2.7V to 5V range. This ensures the device operates within its optimal supply voltage range.

Reference Voltage Configuration

Set up a reference voltage on the non-inverting input (IN+, pin 4) using a stable voltage reference source or a resistor divider network from the supply voltage. This sets the threshold for the voltage comparison.

Solar Panel Voltage Monitoring

Connect the solar panel's output voltage, potentially scaled down through a resistor divider, to the inverting input (IN-, pin 3). This allows the LMV7219M5X/NOPB to compare the panel's voltage to the reference threshold.

Output Signal

The OUT pin (pin 1) provides a digital signal indicating whether the solar panel's voltage is above or below the reference threshold. This output can be connected directly to a microcontroller or other logic circuitry for further processing or control actions.

Grounding

The GND pin (pin 2) should be securely connected to the system ground. A reliable ground connection is essential for accurate comparator operation.

In designing circuits with LMV7219M5X/NOPB, attention should be paid to minimizing noise on the input signals and supply voltage, as noise can affect the comparator's performance. Additionally, the choice of components for the voltage divider (if used) should balance accuracy with power consumption, especially in low-power applications like solar power monitoring. Proper decoupling near the power supply pin is also recommended to ensure stable operation.

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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 LMV7219M5X/NOPB.

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

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