What is the Additional Feature ?

Name: UCC28019AD
Brand: Texas Instruments
SKU: UCC28019AD
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 UCC28019AD

Part No.:: UCC28019AD

Manufacturer:: Texas Instruments

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

Datasheet:: UCC28019AD.pdf

Description:: IC PFC CTRLR CCM 65KHZ 8SOIC

In Stock:: 2532

Quantity:: Add To Cart

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UCC28019AD Specifications

Packaging:
Bulk,Tube
Series:
-
ProductStatus:
Active
Mode:
Continuous Conduction (CCM)
Frequency-Switching:
65kHz
Current-Startup:
100 µA
Voltage-Supply:
10V ~ 21V
OperatingTemperature:
-40°C ~ 125°C
MountingType:
Surface Mount

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UCC28019AD information

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UCC28019AD Typical application Circuitry

UCC28019AD is a high-performance current-mode PWM controller designed for off-line and DC-to-DC converter applications. It features adjustable frequency operation and a high-voltage start-up current source.

Application Scenario:

In power supply designs, UCC28019AD can be utilized to regulate the output voltage and control the power delivery efficiency in various electronic devices, such as LED lighting systems.

Circuit Design:

To design an LED lighting system using UCC28019AD, follow these steps:

1. Input Power Connection:

Connect the input voltage source, typically from an AC mains or a DC input, to the appropriate pins of UCC28019AD. Pin VIN is used for the input power connection.

2. Output Stage:

Connect the output stage components, including the power MOSFET, output diode, and output capacitor, according to the desired LED lighting configuration. Pin VOUT and the COMP pin are crucial for the output stage connection.

3. Feedback Loop:

Implement a feedback loop using an optocoupler or voltage divider to regulate the output voltage. Connect the feedback components to the FB pin of UCC28019AD for closed-loop control.

4. Compensation:

Tune the compensation network using external components connected to the COMP pin to stabilize the control loop and improve transient response.

5. Start-up Circuit:

Utilize the high-voltage start-up current source of UCC28019AD by connecting the necessary components to the VDD pin for reliable start-up operation.

Considerations:

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

- Feedback Loop Stability: Proper compensation design to ensure stable operation and avoid oscillations in the control loop.

- Power Stage Efficiency: Optimize the power stage components and design for maximum efficiency to minimize power losses and improve overall system performance.

- EMI/EMC Compliance: Design the layout and filtering components to reduce electromagnetic interference and ensure compliance with regulatory standards.

- Component Selection: Choose suitable MOSFETs, diodes, and capacitors with appropriate ratings and characteristics to meet the system requirements and ensure reliability.

- Protection Features: Implement overvoltage, overcurrent, and overtemperature protection mechanisms to safeguard the UCC28019AD and the LED lighting system from potential faults or failures.

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6. What is the process for return or replacement of UCC28019AD?

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 UCC28019AD we delivered, we will accept the replacement or return of the UCC28019AD 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 UCC28019AD.

(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