What is the Additional Feature ?

Name: LM293AD
Brand: Texas Instruments
SKU: LM293AD
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 LM293AD

Part No.:: LM293AD

Manufacturer:: Texas Instruments

Package:: 8-SOIC (0.154, 3.90mm Width)

Datasheet:: LM293AD.pdf

Description:: IC DIFF COMPARATOR DUAL 8-SOIC

In Stock:: 1367

Quantity:: Add To Cart

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LM293AD Specifications

Package/Case:
8-SOIC (0.154, 3.90mm Width)
Packaging:
Tube
Series:
-
ProductStatus:
Active
Type:
Differential
NumberofElements:
2
OutputType:
CMOS, MOS, Open-Drain, TTL
Voltage-SupplySingle/Dual(±):
2V ~ 36V, ±1V ~ 18V
Voltage-InputOffset(Max):
2mV @ 30V
Current-InputBias(Max):
0.25µA @ 5V
Current-Output(Typ):
20mA
Current-Quiescent(Max):
2.5mA
CMRRPSRR(Typ):
-
PropagationDelay(Max):
-
Hysteresis:
-
OperatingTemperature:
-25°C ~ 85°C
MountingType:
Surface Mount

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LM293AD information

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LM293AD Typical application Circuitry

LM293AD

The LM293AD is a dual voltage comparator chip, designed for comparing two input voltage levels and providing a digital output indicating which input is higher. It is commonly used in applications requiring voltage level detection or decision-making based on voltage thresholds.

Primary Uses

1. Battery Voltage Monitoring: This feature keeps track of a portable device's battery life.

2. Window Comparator: Used in circuits that establish if a voltage is inside a predetermined range.

3. Signal Conditioning: This technique compares signal levels in circuits to create control signals.

Notable Parameters

- Supply Voltage variety: This device can function with a broad variety of supply voltages, which makes it appropriate for a number of uses.

- Input Offset Voltage: To ensure precise comparisons, use a low input offset voltage.

- Response Time: Fast response time for quick decision-making in dynamic systems.

Battery Voltage Monitoring Circuit Design

1. Power Supply Connection : Attach the power supply's positive terminal to the LM293AD's Vcc pin (pin 8) and its negative terminal to the GND pin (pin 4).

2. Reference Voltage: Set a reference voltage (Vref) using a voltage divider or a reference source, and connect it to the inverting input (pin 6) of the first comparator.

3. Battery Voltage Input: Connect the positive terminal of the battery to the non-inverting input (pin 5) of the first comparator.

4. Output Connection: Connect the output (pin 7) of the first comparator to an LED or a microcontroller input for battery level indication.

5. Decoupling Capacitor: Place a capacitor (Cdec) between the Vcc pin and GND to stabilize the power supply.

Design Considerations

- Power Supply Stability: Ensure that the supply voltage remains within the specified range for stable operation of the LM293AD.

- Reference Voltage Accuracy: Select a precise reference voltage to accurately compare with the battery voltage.

- Hysteresis: Hysteresis should be added to the comparator to avoid spurious triggering as a result of noise or minute voltage variations.

- Output Load: Consider the load connected to the output and ensure it is within the driving capability of the LM293AD.

By following these design guidelines, the LM293AD can be effectively utilized in a battery voltage monitoring circuit, providing a reliable indication of the battery level in portable devices.

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6. What is the process for return or replacement of LM293AD?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the LM293AD we delivered, we will accept the replacement or return of the LM293AD only when all of the below conditions are fulfilled:

(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 LM293AD.

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

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations