UC3863DWG4 Allicdata Electronics
Allicdata Part #:

UC3863DWG4-ND

Manufacturer Part#:

UC3863DWG4

Price: $ 3.19
Product Category:

Integrated Circuits (ICs)

Manufacturer: Texas Instruments
Short Description: IC REG CTRLR MULT TOP 16SOIC
More Detail: Full-Bridge, Half-Bridge, Push-Pull Regulator Posi...
DataSheet: UC3863DWG4 datasheetUC3863DWG4 Datasheet/PDF
Quantity: 1000
120 +: $ 2.90420
Stock 1000Can Ship Immediately
$ 3.19
Specifications
Frequency - Switching: 50kHz ~ 500kHz
Base Part Number: UC3863
Supplier Device Package: 16-SOIC
Package / Case: 16-SOIC (0.295", 7.50mm Width)
Operating Temperature: 0°C ~ 70°C (TA)
Control Features: Soft Start
Serial Interfaces: --
Clock Sync: No
Synchronous Rectifier: No
Duty Cycle (Max): 100%
Series: --
Voltage - Supply (Vcc/Vdd): 7 V ~ 22 V
Output Phases: 1
Number of Outputs: 2
Topology: Full-Bridge, Half-Bridge, Push-Pull
Output Configuration: Positive
Function: Step-Up/Step-Down
Output Type: Transistor Driver
Part Status: Active
Packaging: Tube 
Description

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The UC3863DWG4 is a Pulse Width Modulation (PWM) controller IC that is used in an offline or DC-to-DC converter. It is also known as a monolithic step-down voltage regulator IC. The UC3863DWG4 is designed for controlling non-isolated fly-back converters, boost converters, forward converters, and buck converters. It minimizes the number of external components required for controlling the converter switch and the output voltage.

The UC3863DWG4 application field includes a wide range of applications, such as PC external peripherals, disk drives, process control, motor drives and communication systems. This device also offers a variety of features and protection circuits, such as over-voltage protection, soft start/reverse battery protection, short-circuit protection, and over-current protection. The device also comes with a temperature compensation circuit, which improves the stability of the output voltage.

The UC3863DWG4 working principle provides a dynamic regulation of the output voltage through a feedback loop. The voltage is sensed directly at the output, and then is compared to the set point. Depending on the comparison, the output pulse driver controls either the on-time or the off-time of the converter switch. This dynamic regulation reduces the ripple on the output voltage, allowing it to remain constant.

The UC3863DWG4 also features an Auto-Mode (or pulse-by-pulse) current limit to provide maximum current protection with tight tolerance for output voltage. This Auto mode current limitation is controlled by the external current sense resistor in the power stage (off-line) and an internal soft-start for reduced current inrush during OFF-to-ON transition.

The UC3863DWG4 is a significant advancement in the field of DC-to-DC conversion, as it offers improved features such as high-voltage protection, over-current protection, temperature compensation, and precised current limit. This IC is ideal for a wide range of automotive and industrial applications, as it offers a highly efficient, cost-effective and reliable solution. Its small size, high efficiency, and wide temperature range make it an ideal choice for a wide range of applications.

The specific data is subject to PDF, and the above content is for reference

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