UCC38C55

現行

商用 30-V 低功耗電流模式 PWM 控制器、8.4-V/7.6-V UVLO、50% 工作週期

產品詳細資料

Operating temperature range (°C) 0 to 85 Control mode Current Topology Boost, Buck, Flyback, Forward, SEPIC Rating Catalog Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Fixed frequency, Multi-topology, Programmable max duty cycle Duty cycle (max) (%) 50
Operating temperature range (°C) 0 to 85 Control mode Current Topology Boost, Buck, Flyback, Forward, SEPIC Rating Catalog Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Fixed frequency, Multi-topology, Programmable max duty cycle Duty cycle (max) (%) 50
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Undervoltage lockout options to support both Si and SiC MOSFET applications
  • 30-V VDD absolute maximum voltage
  • 1-MHz maximum fixed frequency operation
  • 50-µA startup current, 75-µA maximum
  • Low operating current: 1.3 mA (at f OSC = 52 kHz)
  • Fast 35-ns, cycle-by-cycle overcurrent limiting
  • ±1-A peak driving current
  • Rail-to-rail output
    • 25-ns rise time
    • 20-ns fall time
  • ±1% accurate 2.5-V error amplifier reference
  • Pin-to-pin compatible and drop-in replacement for UCCx8C4x
  • Functional Safety-Capable
  • Undervoltage lockout options to support both Si and SiC MOSFET applications
  • 30-V VDD absolute maximum voltage
  • 1-MHz maximum fixed frequency operation
  • 50-µA startup current, 75-µA maximum
  • Low operating current: 1.3 mA (at f OSC = 52 kHz)
  • Fast 35-ns, cycle-by-cycle overcurrent limiting
  • ±1-A peak driving current
  • Rail-to-rail output
    • 25-ns rise time
    • 20-ns fall time
  • ±1% accurate 2.5-V error amplifier reference
  • Pin-to-pin compatible and drop-in replacement for UCCx8C4x
  • Functional Safety-Capable

The UCCx8C5x family of devices are high-performance current-mode PWM controllers that can drive both Si and SiC MOSFETs in various applications. The UCCx8C5x family is a more efficient and robust version of the UCCx8C4x.

The UCCx8C5x family has new UVLO thresholds that allow for reliable SiC MOSFET operation (UCC28C56-59), in addition to existing UVLO thresholds for continued Si MOSFET support (UCCx8C50-55).

VDD absolute maximum voltage rating is extended from 20 V to 30 V for optimally driving the gate of 20-V gs, 18-V gs, or 15-V gs SiC MOSFETs, while also allowing for the exclusion of an external LDO.

The UCCx8C5x family is offered in 8-pin VSSOP (DGK), and 8-pin SOIC (D) packages.

The UCCx8C5x family of devices are high-performance current-mode PWM controllers that can drive both Si and SiC MOSFETs in various applications. The UCCx8C5x family is a more efficient and robust version of the UCCx8C4x.

The UCCx8C5x family has new UVLO thresholds that allow for reliable SiC MOSFET operation (UCC28C56-59), in addition to existing UVLO thresholds for continued Si MOSFET support (UCCx8C50-55).

VDD absolute maximum voltage rating is extended from 20 V to 30 V for optimally driving the gate of 20-V gs, 18-V gs, or 15-V gs SiC MOSFETs, while also allowing for the exclusion of an external LDO.

The UCCx8C5x family is offered in 8-pin VSSOP (DGK), and 8-pin SOIC (D) packages.

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* Data sheet UCCx8C5x Low-Power Current-Mode High-Performance PWM Controller for Si and SiC MOSFETs datasheet (Rev. C) PDF | HTML 2023年 3月 23日

設計與開發

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開發板

UCC28C56EVM-066 — 適用於一次側控制 (使用 AUX 線圈) 返馳穩壓器的 UCC28C56H-Q1 評估模組

UCC28C56EVM-066 是高效率的一次側控制 (使用 AUX 線圈) 返馳輔助電源供應,適用於 EV 和 HEV 汽車動力傳動系統。該設計爲 800-V 電池系統提供 15.2-VTYP、40-W 輸出。在 125 V 到 1000 V 的輸入電壓範圍內可提供 40 W。確切的輸出電壓視負載而定。從 40-V 至 125-V 輸入,該設計將提供 20 W。EVM 採用 1700-V 碳化矽 (SiC) MOSFET,是 800-V 電池系統的理想選擇。

使用指南: PDF | HTML
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參考設計

PMP10834 — 85-265Vin、5Vout、1Aout、AC-DC 返馳轉換器參考設計

The PMP10834RevA reference design is a compact and thermally efficient design intended to step down a wide range of AC inputs (85VAC to 265VAC). This non-isolated Flybuck design incorporates the UCC28C42 PWM with an optocoupler feedback to provide 1% output voltage regulation. All the circuit (...)
Test report: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (D) 8 Ultra Librarian

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  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
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