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Name: LT3599EFE
Brand: Analog Devices Inc.
SKU: LT3599EFE
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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Analog Devices Inc. LT3599EFE

Part No.:: LT3599EFE

Manufacturer:: Analog Devices Inc.

Package:: 28-TSSOP (0.173, 4.40mm Width) Exposed Pad

Datasheet:

Description:: IC LED DRVR RGLTR PWM 28TSSOP

In Stock:: 2478

Quantity:: Add To Cart

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LT3599EFE Specifications

Packaging:
Tube
Series:
True Color PWM™
ProductStatus:
Obsolete
Type:
DC DC Regulator
Topology:
Step-Up (Boost)
InternalSwitch(s):
Yes
NumberofOutputs:
4
Voltage-Supply(Min):
2.7V
Voltage-Supply(Max):
30V
Voltage-Output:
44V
Current-Output/Channel:
120mA
Frequency:
200kHz ~ 2.1MHz
Dimming:
Analog, PWM
Applications:
Automotive
OperatingTemperature:
-40°C ~ 125°C (TJ)
MountingType:
Surface Mount

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LT3599EFE information

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LT3599EFE Typical application Circuitry

LT3599EFE is a multi-function LED driver chip designed for driving multiple LED strings with programmable currents, making it suitable for various lighting applications. It features integrated boost, flyback, SEPIC, and inverting DC/DC converters, along with an I2C interface for programming and control.

Application Scenario:

In automotive lighting systems, LT3599EFE can be used to drive multiple LED strings for interior or exterior lighting, such as ambient lighting, backlighting, or headlight modules.

Circuit Design:

To design an automotive interior lighting system using LT3599EFE, follow these steps:

1. LED String Configuration:

Connect multiple LED strings in parallel or series, depending on the desired lighting configuration and voltage requirements. Ensure that the total forward voltage of the LED strings matches the output voltage of the LT3599EFE.

2. Input Power Supply:

Provide a stable input voltage to the LT3599EFE from the vehicle's electrical system. Use proper input filtering and protection circuitry to ensure reliable operation under varying voltage conditions.

3. Programming and Control:

Utilize the I2C interface of LT3599EFE to program the desired LED currents, dimming levels, and fault monitoring parameters. Connect the SDA and SCL lines to the microcontroller or external control module for communication.

4. LED Current Regulation:

Configure the internal current sources of LT3599EFE to provide the desired constant current to each LED string. Adjust the resistor values connected to the ISET pins to set the desired LED current levels.

5. Thermal Management:

Implement proper thermal management measures, such as heat sinking or airflow, to dissipate the heat generated by the LT3599EFE during operation. Ensure that the junction temperature remains within safe limits for reliable performance.

Considerations:

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

- LED Forward Voltage Matching: Ensure that the total forward voltage of the LED strings matches the output voltage of the LT3599EFE to prevent overvoltage or undervoltage conditions.

- Input Voltage Range: Design the input power supply circuitry to tolerate the wide voltage range typically found in automotive electrical systems.

- EMI/EMC Compliance: Implement proper filtering and shielding techniques to minimize electromagnetic interference and ensure compliance with automotive EMC standards.

- Fault Monitoring: Monitor the LT3599EFE for any fault conditions, such as overcurrent or overtemperature, and implement appropriate shutdown or protection mechanisms to prevent damage to the device and connected LEDs.

- Reliability Testing: Thoroughly test the system under various operating conditions to ensure long-term reliability and performance in automotive environments.

LT3599EFE FAQ

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3. Are the LT3599EFE price and inventory displayed accurate?

The price and inventory of LT3599EFE fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

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6. What is the process for return or replacement of LT3599EFE?

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 LT3599EFE we delivered, we will accept the replacement or return of the LT3599EFE 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 LT3599EFE.

(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