UC28025DW

Versatile 16-SOIC package
6,622 有效庫存

UC28025DW

有效庫存6,622

Versatile 16-SOIC package

  • 製造商零件號 # : UC28025DW

  • 包裝/封裝: SOIC-16

  • 製造商: Texas Instruments

  • 產品分類 : DC DC Switching Controllers

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UC28025DW 數據表
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詳細說明

The UC28025DW is also equipped with a comprehensive set of protection features, including overcurrent protection, overvoltage protection, and thermal shutdown, to safeguard the power supply system against potential hazards. Moreover, its selectable switching frequency of up to 500kHz and adjustable dead-time control provide flexibility and customization options for power supply design, allowing for optimal performance in diverse applications

主要特徵

  • High-speed data acquisition and processing
  • Rail-to-rail output swing for better noise rejection
  • Dual operational amplifiers with low input offset
  • Suitable for portable instrumentation and sensor interface applications
  • Wide operating temperature range for flexibility

應用

  • Top choice for power management
  • Compact and versatile design
  • Suitable for various applications

規格

以下是所選零件的基本參數，涉及零件的特性及其所屬類別。

Topology Boost, Flyback, Forward, Full bridge, Half bridge, Push pull Control mode Current, Feedforward, Voltage
Duty cycle (max) (%) 45 Switching frequency (max) (kHz) 1000
Features Adjustable switching frequency, Current limiting, Error amplifier, Multi-topology, Programmable max duty cycle, Soft start, Synchronization pin UVLO thresholds on/off (V) 9.2/8.4
Operating temperature range (°C) -40 to 105 Rating Catalog
Gate drive (typ) (A) 1.5 Vin (max) (V) 12

數據表 PDF

數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。

初步規格 UC28025DW PDF 下載

常見問題解答

What is UC28025DW?

The UC28025DW is a high efficiency synchronous rectifier controller designed by Texas Instruments. It is used in power supply applications to improve overall efficiency and reduce power losses in synchronous rectification circuits.

How Does UC28025DW Work?

The UC28025DW operates by controlling the synchronous rectification process in power supply circuits. It provides control signals to the synchronous rectifiers to ensure efficient energy transfer and minimize power dissipation. The controller is designed to optimize power conversion in various DC-DC converter topologies.

How Many Pins does UC28025DW have and What are the Functions of the Pinout Configuration?

The UC28025DW is housed in a 16-pin SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:

  • BOOT: Bootstrap capacitor pin.
  • HO: High side gate drive output.
  • VB: Bias voltage input pin for the high side gate driver.
  • VS: High side floating supply voltage pin.
  • PGND: Power ground pin.
  • PHS: High side MOSFET source voltage pin.
  • LGND: Logic ground pin.
  • LO: Low side gate drive output.
  • COMP: Compensation pin.
  • RT: Totem pole driver high side turn-on delay pin.
  • SHS: High side MOSFET source return pin.
  • GATE: Low side MOSFET gate drive output pin.
  • VCC: Logic supply voltage pin.
  • SE: Soft start pin.
  • RTN: Totem pole driver return and shutdown pin.
  • SS/TR: Soft start/tracking and enable pin.

What are the Pros and Cons of UC28025DW?

Pros:

  • High Efficiency: Improves overall efficiency in power supply circuits.
  • Synchronous Rectification Control: Provides precise control of synchronous rectifiers for optimal performance.
  • Compact Package: The 16-pin SOIC package is compact and suitable for space-constrained designs.
  • Wide Application Range: Suitable for various DC-DC converter topologies and power supply applications.
  • Enhanced Power Conversion: Optimizes energy transfer and reduces power dissipation.

Cons:

  • Complexity: Requires understanding of power supply circuit design and synchronous rectification principles for effective use.
  • External Components: May require additional external components for proper operation in specific applications.

Are There Any Equivalents/Alternatives to UC28025DW for Recommendation?

  • The IR1168 from Infineon Technologies is a similar synchronous rectifier controller with comparable features.
  • Alternatives to the UC28025DW include the LM5118 from Texas Instruments and the HIP2100 from Renesas Electronics.

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