What is the Additional Feature ?

Name: LM74502QDDFRQ1
Brand: Texas Instruments
SKU: LM74502QDDFRQ1
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 LM74502QDDFRQ1

Part No.:: LM74502QDDFRQ1

Manufacturer:: Texas Instruments

Package:: SOT-23-8

Datasheet:

Description:: AUTOMOTIVE REVERSE POLARITY PROT

In Stock:: 3276

Quantity:: Add To Cart

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LM74502QDDFRQ1 Specifications

Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
Type:
Source Selector Switch
FETType:
N-Channel
Ratio-Input:Output:
1:1
InternalSwitch(s):
No
DelayTime-ON:
75 µs
DelayTime-OFF:
2 µs
Current-Output(Max):
2A
Current-Supply:
45 µA
Voltage-Supply:
4V ~ 60V
Applications:
Automotive
OperatingTemperature:
-40°C ~ 125°C (TJ)
MountingType:
Surface Mount

LM74502QDDFRQ1 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including LM74502QDDFRQ1 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 LM74502QDDFRQ1 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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LM74502QDDFRQ1 information

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LM74502QDDFRQ1 Typical application Circuitry

LM74502QDDFRQ1 is a power management chip designed for automotive applications, particularly suited for automotive lighting systems. It integrates various protection features and control mechanisms to ensure reliable operation in harsh automotive environments.

Application Scenario:

In automotive lighting systems, LM74502QDDFRQ1 can be used to efficiently manage the power distribution and control of various lighting elements, such as headlights, taillights, and interior lights.

Circuit Design:

To design an automotive lighting control system using LM74502QDDFRQ1, follow these steps:

1. Power Input:

Connect the main power source, typically the vehicle's battery, to the VIN pin of LM74502QDDFRQ1. Ensure proper protection circuitry, such as reverse polarity protection diodes and transient voltage suppressors, is implemented to safeguard the chip against voltage spikes and polarity reversals.

2. Lighting Element Control:

Connect the lighting elements, such as headlights and taillights, to the respective output pins of LM74502QDDFRQ1. These pins, like pin OUT1 and OUT2, can be configured as high-side switches to control the illumination of different lighting zones.

3. Dimming Control:

Integrate dimming functionality by connecting a PWM signal source, such as a microcontroller or ambient light sensor, to the DIM pin of LM74502QDDFRQ1. This allows for dynamic adjustment of the brightness levels of the lighting elements based on ambient conditions or user preferences.

4. Fault Monitoring:

Implement fault monitoring and protection mechanisms by connecting external monitoring circuits to the FAULT pin of LM74502QDDFRQ1. This pin provides status indication for overcurrent, overvoltage, and thermal shutdown conditions, enabling timely fault detection and system shutdown if necessary.

5. Thermal Management:

Ensure proper thermal management by connecting a heatsink or thermal pad to the exposed thermal pad of LM74502QDDFRQ1. Adequate thermal dissipation is essential to prevent overheating and maintain the reliability of the chip in high-temperature automotive environments.

Considerations:

When designing the circuit, it's essential to consider:

- Load Compatibility: Ensure that the lighting elements connected to LM74502QDDFRQ1 are compatible with the chip's output ratings and protection features to prevent damage or malfunction.

- EMI/EMC Compliance: Design the circuit layout and shielding to minimize electromagnetic interference and ensure compliance with automotive EMC standards, such as CISPR25.

- Automotive Qualification: Select automotive-grade components and materials to ensure the reliability and longevity of the lighting control system, considering factors like temperature, vibration, and moisture resistance.

- Diagnostic Capability: Implement diagnostic features, such as self-test routines and fault logging, to facilitate troubleshooting and maintenance of the lighting system during vehicle operation and servicing.

- Power Efficiency: Optimize the power management algorithms and control strategies to maximize energy efficiency and minimize power losses, thereby extending the vehicle's battery life and reducing fuel consumption.

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6. What is the process for return or replacement of LM74502QDDFRQ1?

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 LM74502QDDFRQ1 we delivered, we will accept the replacement or return of the LM74502QDDFRQ1 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 LM74502QDDFRQ1.

(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