UCC2809PWTR-1G4 Allicdata Electronics
Allicdata Part #:

UCC2809PWTR-1G4-ND

Manufacturer Part#:

UCC2809PWTR-1G4

Price: $ 1.02
Product Category:

Integrated Circuits (ICs)

Manufacturer: Texas Instruments
Short Description: IC REG CTRLR PWM CM 8-TSSOP
More Detail: Converter Offline Boost, Flyback, Forward Topology...
DataSheet: UCC2809PWTR-1G4 datasheetUCC2809PWTR-1G4 Datasheet/PDF
Quantity: 1000
2000 +: $ 0.92169
Stock 1000Can Ship Immediately
$ 1.02
Specifications
Duty Cycle: 70%
Base Part Number: UCC2809-1
Mounting Type: Surface Mount
Supplier Device Package: 8-TSSOP
Package / Case: 8-TSSOP (0.173", 4.40mm Width)
Operating Temperature: -55°C ~ 150°C (TJ)
Control Features: Frequency Control, Soft Start
Fault Protection: --
Frequency - Switching: 1MHz
Series: --
Voltage - Supply (Vcc/Vdd): 8 V ~ 19 V
Voltage - Start Up: 10V
Topology: Boost, Flyback, Forward
Voltage - Breakdown: --
Internal Switch(s): No
Output Isolation: Isolated
Part Status: Active
Packaging: Tape & Reel (TR) 
Description

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PMIC – AC DC Converters, Offline Switchers

The UCC2809PWTR-1G4 is a highly-integrated offline switcher IC for high-density isolated AC-DC applications, such as personal computers and servers. At its core, the device integrates two channels of off-line power factor correction (PFC) with two synchronous rectifiers, two secondary-side controllers, two low dropout (LDO) regulators and two secondary rectifiers. With its wide range of performance and feature integration, the UCC2809PWTR-1G4 helps to reduce system cost, space and overhead power by providing a efficient and reliable solution for AC-DC power conversion in a very small footprint.

Application Field

The UCC2809PWTR-1G4 is ideal for use in a broad range of applications. First, it is well-suited for any low voltage applications. This includes powering processors, motherboards, peripherals systems and consumer applications. Additionally, the UCC2809PWTR-1G4 is ideal for specialized applications such as micro-inverters, high frequency welding machines, telecommunication power supplies and industrial automation systems.

Working Principle

The UCC2809PWTR-1G4 primarily operates with two stages for power conversion. The first stage is the power factor correction (PFC) controller that is responsible for clean DC output by providing optimized power factor. This is achieved by adjusting the switching of the power switch to maintain a low impedance path. Additionally, the IC’s voltage feed forward algorithm helps to optimize the performance of the power system.The second stage of the device is the synchronous rectification system that relies on two secondary-side controllers to properly regulate the output voltage. The asynchronous rectifiers are then triggered through their gate drivers to minimize the power losses.In addition to the rectification stages, the UCC2809PWTR-1G4 also includes two low dropout (LDO) regulators and two secondary rectifiers. The LDOs are used to generate constant current corresponding to the requirements of the load while the secondary rectifiers help to reduce the overall power losses.Last, the on-chip protections, like short circuit protection, soft-start, under-voltage lockout and over-voltage protection, help to protect the device against damage and improve the system reliability.

Conclusion

The UCC2809PWTR-1G4, from Texas Instruments, is a highly integrated offline switcher IC for AC-DC applications. It is ideal for low voltage applications, such as powering processors, motherboards, and peripherals, as well as specialized applications such as micro-inverters, high frequency welding machines, telecommunication power supplies, and industrial automation systems. It is composed of two stages for power conversion, the power factor correction stage and the synchronous rectification stage, along with on-chip protections. This device is a reliable and robust solution for AC-DC power conversion.

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

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