What is the Additional Feature ?

Name: LM397MF/NOPB
Brand: Texas Instruments
SKU: LM397MF/NOPB
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 LM397MF/NOPB

Part No.:: LM397MF/NOPB

Manufacturer:: Texas Instruments

Package:: SC-74A, SOT-753

Datasheet:: LM397MF/NOPB.pdf

Description:: IC COMPARATOR VOLT SGL SOT23-5

In Stock:: 2065

Quantity:: Add To Cart

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LM397MF/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:
CMOS, Open-Collector, TTL
Voltage-SupplySingle/Dual(±):
5V ~ 30V, ±2.5V ~ 15V
Voltage-InputOffset(Max):
7mV @ 30V
Current-InputBias(Max):
0.25µA @ 5V
Current-Output(Typ):
13mA @ 5V
Current-Quiescent(Max):
2mA
CMRRPSRR(Typ):
-
PropagationDelay(Max):
940µs
Hysteresis:
-
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

LM397MF/NOPB this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including LM397MF/NOPB 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 LM397MF/NOPB 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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LM397MF/NOPB information

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LM397MF/NOPB Typical application Circuitry

LM397MF NOPB

LM397MF/NOPB is a single voltage comparator designed for a wide range of applications that require a simple, yet effective, method to compare two voltages.

Application Scenarios

One of the applications for the LM397MF/NOPB is in creating a low-battery indicator for portable devices. In this scenario, the comparator can be used to monitor the battery voltage and provide an alert when the voltage drops below a predetermined threshold, indicating that the battery needs recharging or replacement.

Parameter Features

- Single Supply Operation: The LM397MF/NOPB can operate from a single power supply, which is ideal for battery-powered applications.

- Low Input Offset Voltage: This feature ensures accurate voltage comparison, critical for precision applications.

- Broad Supply Voltage Range: The device is flexible enough to work with a variety of circuit designs because it can run on a wide range of supply voltages.

- Open-Collector Output: This allows the output to be connected to different voltage levels, providing flexibility in interfacing with other circuit elements.

Circuit Connection Example: Low-Battery Indicator

Designing a low-battery indicator circuit with the LM397MF/NOPB involves several key considerations:

- Power Supply Connection: Connect the power supply of the portable device to the VCC pin (pin 5) of the LM397MF/NOPB.Make that the supplied voltage is within the integrated circuit's operating range.

- Ground Connection: Connect the GND pin (pin 2) of the LM397MF/NOPB to the circuit's ground.

- Reference Voltage: Apply a reference voltage, corresponding to the low-battery threshold, to the non-inverting input (pin 3). This can be set up using a voltage divider or a precision reference source.

- Battery Voltage Monitoring: Connect the battery voltage to be monitored to the inverting input (pin 4) of the LM397MF/NOPB.

- Indicator Output: The open-collector output (pin 1) can be connected to an LED (with an appropriate current-limiting resistor) or to a digital input of a microcontroller for visual or digital low-battery indication. A pull-up resistor to a suitable voltage level may be required.

Design Considerations

When implementing the LM397MF/NOPB in a low-battery indicator circuit, it's essential to accurately set the reference voltage to ensure timely and precise battery status indication. Additionally, the power consumption of the comparator and the indicator should be minimized to preserve battery life. The choice of the pull-up resistor for the open-collector output must consider the desired logic level and current driving capability. It's also crucial to account for the transient conditions during power-up or when the battery voltage fluctuates rapidly to avoid false triggering.

In conclusion, the LM397MF/NOPB serves as an efficient solution for developing low-battery indicators in portable devices, offering precise voltage comparison with minimal power consumption. By carefully addressing reference voltage setting, power efficiency, output configuration, and transient response, designers can effectively utilize the LM397MF/NOPB to enhance the reliability and user experience of their battery-powered applications.

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6. What is the process for return or replacement of LM397MF/NOPB?

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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 LM397MF/NOPB.

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

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(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations