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AC/DC & DC/DC controllers (external FET)

UCC3895

現行

具有增強型控制邏輯 0°C 至 70°C 的相移全橋控制器

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產品規格表

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UCC28951 現行 具 SR 控制且適用寬輸入電壓範圍的綠色相移全橋控制器 SR control, better light load efficiency, and programmable delays for ZVS

UCC3895

現行
產品規格表 立即訂購

產品詳細資料

Vin (max) (V) 16.5 Operating temperature range (°C) 0 to 70 Control mode Current Topology Phase-shifted full bridge Rating Catalog Duty cycle (max) (%) 100
Vin (max) (V) 16.5 Operating temperature range (°C) 0 to 70 Control mode Current Topology Phase-shifted full bridge Rating Catalog Duty cycle (max) (%) 100
PDIP (N) 20 228.702 mm² 24.33 x 9.4 SOIC (DW) 20 131.84 mm² 12.8 x 10.3 TSSOP (PW) 20 41.6 mm² 6.5 x 6.4
  • Programmable-output turnon delay
  • Adaptive delay set
  • Bidirectional oscillator synchronization
  • Voltage-mode, peak current-mode, or average current-mode control
  • Programmable soft start, soft stop, and chip disable via a single pin
  • 0% to 100% duty-cycle control
  • 7-MHz error amplifier
  • Operation to 1 MHz
  • Typical 5-mA operating current at 500 kHz
  • Very low 150-µA current during UVLO
  • Programmable-output turnon delay
  • Adaptive delay set
  • Bidirectional oscillator synchronization
  • Voltage-mode, peak current-mode, or average current-mode control
  • Programmable soft start, soft stop, and chip disable via a single pin
  • 0% to 100% duty-cycle control
  • 7-MHz error amplifier
  • Operation to 1 MHz
  • Typical 5-mA operating current at 500 kHz
  • Very low 150-µA current during UVLO

The UCC3895 is a phase-shift PWM controller that implements control of a full-bridge power stage by phase shifting the switching of one half-bridge with respect to the other. The device allows constant frequency pulse-width modulation in conjunction with resonant zero-voltage switching to provide high efficiency at high frequencies. The part is used either as a voltage-mode or current-mode controller.

While the UCC3895 maintains the functionality of the UC3875/6/7/8 family and UC3879, it improves on that controller family with additional features such as enhanced control logic, adaptive delay set, and shutdown capability. Because the device is built using the BCDMOS process, it operates with dramatically less supply current than it’s bipolar counterparts. The UCC3895 operates with a maximum clock frequency of 1 MHz.

The UCC3895 is a phase-shift PWM controller that implements control of a full-bridge power stage by phase shifting the switching of one half-bridge with respect to the other. The device allows constant frequency pulse-width modulation in conjunction with resonant zero-voltage switching to provide high efficiency at high frequencies. The part is used either as a voltage-mode or current-mode controller.

While the UCC3895 maintains the functionality of the UC3875/6/7/8 family and UC3879, it improves on that controller family with additional features such as enhanced control logic, adaptive delay set, and shutdown capability. Because the device is built using the BCDMOS process, it operates with dramatically less supply current than it’s bipolar counterparts. The UCC3895 operates with a maximum clock frequency of 1 MHz.
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技術文件

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類型 標題 日期
* Data sheet UCCx895 BiCMOS Advanced Phase-Shift PWM Controller datasheet (Rev. Q) PDF | HTML 2019年 10月 9日
Technical article 35 years later, APEC continues to set the tone for innovation in power management PDF | HTML 2020年 2月 27日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
Application note Phase Shifted Full Bridge, Zero Voltage Transition Design Considerations (Rev. A) 2011年 1月 22日
Application note UCC2895 Layout and Grounding Recommendations 2009年 4月 9日
EVM User's guide UCC3895EVM-001 Configuring The UCC3895 For Direct Control Driven Synchronous Re (Rev. B) 2008年 12月 2日
Application note Current Doubler Rectifier Offers Ripple Current Cancellation 2004年 9月 21日
Application note Synchronous Rectifiers of a Current Doubler 2003年 2月 27日
Application note UCC3895 CD Output Asymmetric Duty Cycle Operation 2002年 8月 21日
Application note A Power Management Solution for Efficient, Multiple Output Applications 2001年 10月 4日
Application note A Comparison Between the BiCMOS UCC3895 Phase Shift Controller and the UC3875 2001年 2月 22日
More literature Seminar 800 Topic 5 - Fixed-Frequency Resonant-Switched PWM 2001年 2月 15日
More literature Seminar 900 Topic 3 - Designing a Phase-Shifted ZVT Power Converter 2001年 2月 15日
More literature Seminar 900 Topic 4 - 500-W 40-W/in3 Phase-Shifted ZVT Power Converter 2001年 2月 15日
Application note DN-63 The Current-Doubler Rectifier: An Alternative Rectification Technique 2001年 1月 12日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

UCC3895EVM-001 — UCC3895 評估模組

The UCC3895EVM-001 is an isolated 48V input phase shifted full bridge converter providing an output of 3.3V at 15A. Using the AB outputs of the UCC3895, a novel technique for direct control driven synchronous rectification is demonstrated.

使用指南: PDF
TI.com 無法提供
模擬型號

UCC1895, UCC2895, UCC3895 TINA-TI Average Reference Design

SLUM188.TSC (99 KB) - TINA-TI Reference Design
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模擬型號

UCC1895, UCC2895, UCC3895 TINA-TI Average Spice Model

SLUM189.ZIP (11 KB) - TINA-TI Spice Model
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模擬型號

UCC1895, UCC2895, UCC3895 TINA-TI Transient Reference Design

SLUM186.TSC (934 KB) - TINA-TI Reference Design
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模擬型號

UCC1895, UCC2895, UCC3895 TINA-TI Transient Spice Model

SLUM187.ZIP (39 KB) - TINA-TI Spice Model
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模擬型號

UCCx895 Family PSpice Average Model

SLUM080.ZIP (105 KB) - PSpice Model
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模擬型號

UCCx895 and UCCx7324 Families PSpice Transient Model (Rev. A)

SLUM055A.ZIP (90 KB) - PSpice Model
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參考設計

PMP9622 — 350W 恆壓 - 定電流 (CVCC) 相移全橋參考設計

This reference design uses the UCC3895 Phase-Shifted Full Bridge controller to implement a high efficiency, 120VAC input to 44Vdc up to 8A output.  The power supply is set up to be  constant voltage-constant current.  The voltage and current are set by fixed resistor values and could (...)
Test report: PDF
電路圖: PDF
封裝 引腳 下載
PDIP (N) 20 檢視選項
SOIC (DW) 20 檢視選項
TSSOP (PW) 20 檢視選項
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  • 鉛塗層/球物料
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  • 材料內容
  • 資格摘要
  • 進行中可靠性監測
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