UC2827DW-1
Switching Controllers Buck Current/Voltage Fed Push-PullUC2827DW-1
Switching Controllers Buck Current/Voltage Fed Push-Pull
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製造商零件號 # : UC2827DW-1
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包裝/封裝: SOIC-24
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製造商: Texas Instruments
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產品分類 : DC DC Switching Controllers
品質保證
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服務與包裝
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UC2827DW-1 數據表
價格 (USD)
數量 | 單價 | 總價 |
---|---|---|
1 | $5.875 | $5.88 |
200 | $2.274 | $454.80 |
500 | $2.193 | $1,096.50 |
1000 | $2.155 | $2,155.00 |
這些價格會受到市場波動的影響,需要提交報價才能取得最新價格。
詳細說明
The UC3827 family of controller devices, including the UC2827DW-1, is designed to provide an integrated control solution for cascaded buck and push-pull converters. These converters, known as current fed or voltage fed push-pull converters, are ideal for multiple output and/or high voltage output applications. With features such as complete protection and PWM control functions, easy control of the floating switch, and support for an input voltage up to 72 VDC, the UC2827DW-1 offers precise control and efficient performance in a variety of applications. Additionally, the device can be set up in traditional voltage mode control using input voltage feedforward technique or in current mode control, allowing for precise control and preventing potential core saturation of the push-pull transformer. Other valuable features include bidirectional synchronization capability, user programmable overlap time, user programmable gap time, and a high bandwidth differential current sense amplifier, making the UC2827DW-1 a versatile and reliable choice for demanding converter applications
主要特徵
- High Power Density
- Fast Transient Response
- High Frequency Stability
- Precise Voltage Control
- Low EMI Emissions
- Robust Short Circuit Protection
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 | Full bridge, Push pull | Control mode | Current |
Duty cycle (max) (%) | 50 | Switching frequency (max) (kHz) | 500 |
Features | Error amplifier, Multi-topology, Soft start | UVLO thresholds on/off (V) | 9/8.4 |
Operating temperature range (°C) | -40 to 85 | Rating | Catalog |
Gate drive (typ) (A) | 1 | Vin (max) (V) | 20 |
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。
常見問題解答
What is UC2827DW-1?
The UC2827DW-1 is a high-performance current mode PWM controller designed by Texas Instruments. It is specifically designed for high-speed operation and precise control of power converters, making it suitable for applications such as isolated and non-isolated power supplies, telecom and datacom systems, and motor control.
How Does UC2827DW-1 Work?
The UC2827DW-1 operates as a current mode PWM controller, providing fast and accurate control of power conversion. It regulates the output voltage or current by modulating the duty cycle of a switching power stage based on the feedback from the output. The controller features adaptive internal circuitry for stability and performance over a wide range of operating conditions.
How Many Pins does UC2827DW-1 have and What are the Functions of the Pinout Configuration?
The UC2827DW-1 is housed in a 16-pin SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:
- VREF: Reference voltage output.
- FB: Feedback input for regulation loop.
- COMP: Compensation pin for loop stability.
- CSD, GND: Current sense and ground pins.
- RT/CT, SYNC, SS/TR: Oscillator and synchronization control pins.
- HDRV, LDRV, HO, LO: Gate drive and output stage control pins.
What are the Pros and Cons of UC2827DW-1?
Pros:
- High-Speed Operation: Designed for high-speed power conversion applications.
- Precise Control: Offers accurate current mode control for efficient power delivery.
- Wide Operating Range: Adaptive internal circuitry provides stability over varying operating conditions.
- Flexible Configuration: Supports external synchronization and compensation for versatile applications.
Cons:
- Complex Design: Requires careful consideration of loop stability and component selection for optimal performance.
- External Components: May require additional external components and careful layout for specific applications.
Are There Any Equivalents/Alternatives to UC2827DW-1 for Recommendation?
- The UC2842B from Texas Instruments is a similar current mode PWM controller suitable for many of the same applications.
- Alternatives to the UC2827DW-1 include the SG3525A from STMicroelectronics and the NCP1252 from ON Semiconductor.
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