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AC/DC 控制器

UCC28951-Q1

現行

具 SR 控制且適用寬輸入電壓範圍的車用綠色相移全橋控制器

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產品規格表

UCC28951-Q1

現行
產品規格表 立即訂購

產品詳細資料

Topology Phase-shifted full bridge Control mode Current Features Adjustable switching frequency, Current limiting, Enable/Shutdown, Error amplifier, Green mode, Light-load efficiency, Programmable slope compensation, SR logic, Soft start, Soft switching, Synchronization pin, Thermal shutdown Duty cycle (max) (%) 97
Topology Phase-shifted full bridge Control mode Current Features Adjustable switching frequency, Current limiting, Enable/Shutdown, Error amplifier, Green mode, Light-load efficiency, Programmable slope compensation, SR logic, Soft start, Soft switching, Synchronization pin, Thermal shutdown Duty cycle (max) (%) 97
TSSOP (PW) 24 49.92 mm² (7.8 mm × 6.4 mm)
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM ESD classification level H2
    • Device CDM ESD classification level C3B
  • Enhanced zero-voltage switching (ZVS) range
  • Direct synchronous rectifier (SR) control
  • Light-load efficiency management including:
    • Burst mode operation
    • Discontinuous conduction mode (DCM), dynamic SR on/off control
  • Average- or peak-current mode control with programmable slope compensation and voltage-mode control
  • Closed-loop soft-start and enable function
  • Programmable switching frequency up to 1 MHz with bidirectional synchronization
  • (±3%) cycle-by-cycle current limit protection with hiccup mode support
  • 150µA start-up current
  • VDD undervoltage lockout
  • Wide temperature range: –40°C to +125°C
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM ESD classification level H2
    • Device CDM ESD classification level C3B
  • Enhanced zero-voltage switching (ZVS) range
  • Direct synchronous rectifier (SR) control
  • Light-load efficiency management including:
    • Burst mode operation
    • Discontinuous conduction mode (DCM), dynamic SR on/off control
  • Average- or peak-current mode control with programmable slope compensation and voltage-mode control
  • Closed-loop soft-start and enable function
  • Programmable switching frequency up to 1 MHz with bidirectional synchronization
  • (±3%) cycle-by-cycle current limit protection with hiccup mode support
  • 150µA start-up current
  • VDD undervoltage lockout
  • Wide temperature range: –40°C to +125°C

The UCC28951-Q1 controller is an enhanced version of the UCC28950-Q1. It is a fully compatible drop-in replacement for the UCC28950-Q1. Refer to application note Making the Correct Choice: UCC28950-Q1 or UCC28951-Q1 to determine which controller to use.The UCC2895x-Q1 devices use advanced control of the full-bridge in addition to active control of the synchronous rectifier (SR) output stage.

ZVS operation ensured over a wide range of operating conditions, while the load current naturally tunes the switching delays of the secondary-side synchronous rectifiers(SR). This functionality maximizes overall system efficiency.

Easily get started with the UCC2895x-Q1 600W phase shifted full bridge design review/application note,

The 24-pin, TSSOP package complies with RoHS requirements.

The UCC28951-Q1 controller is an enhanced version of the UCC28950-Q1. It is a fully compatible drop-in replacement for the UCC28950-Q1. Refer to application note Making the Correct Choice: UCC28950-Q1 or UCC28951-Q1 to determine which controller to use.The UCC2895x-Q1 devices use advanced control of the full-bridge in addition to active control of the synchronous rectifier (SR) output stage.

ZVS operation ensured over a wide range of operating conditions, while the load current naturally tunes the switching delays of the secondary-side synchronous rectifiers(SR). This functionality maximizes overall system efficiency.

Easily get started with the UCC2895x-Q1 600W phase shifted full bridge design review/application note,

The 24-pin, TSSOP package complies with RoHS requirements.
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技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 UCC2895x-Q1 Automotive Phase-Shifted Full-Bridge Controller for Wide-Input Voltage Range Applications datasheet (Rev. C) PDF | HTML 2024/10/17
應用說明 UCC28950 600W Phase Shifted Full Bridge Design Review/Application Report (Rev. D) PDF | HTML 2022/3/4
功能安全資訊 UCC28951-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 2020/9/30
應用說明 PFC Design Choice for On Board Charger Designs 2018/5/24
Application brief Reducing Switching Losses in On-Board Chargers for Electric Vehicles 2018/3/27
技術文章 Hybrid electric vehicles and electric vehicles need different isolated DC/DCs to w PDF | HTML 2017/12/27
應用說明 Making the Correct Choice: UCC28950-Q1 or UCC28951-Q1 2017/11/13
技術文章 Are you on-board? Demystifying EV charging systems PDF | HTML 2017/7/31
應用說明 Gate Driver Design Considerations 2016/10/10
更多文件說明 Design review of a 2-kW parallelable power supply module 2016/8/17
更多文件說明 Design review of a 2-kW parallelable power supply module (PPT) 2016/8/17

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)。

模擬型號

UCC28950 and UCC28951 PSpice Transient Model (Rev. C)

SLUM169C.ZIP (168 KB) - PSpice 模型
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模擬型號

UCC28950 and UCC28951 TINA-TI Startup Reference Design (Rev. A)

SLUM276A.TSC (738 KB) - TINA-TI 參考設計
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模擬型號

UCC28950 and UCC28951 TINA-TI Steady State Reference Design (Rev. A)

SLUM277A.TSC (739 KB) - TINA-TI 參考設計
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計算工具

SLUC222 — UCC2895x Excel 設計工具

Excel based calculator to design a PSFB power supply
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參考設計

PMP20657 — 精巧、高效的單向 48V 至 12V@400W 汽車電源參考設計

PMP20657 參考設計是一款緊湊高效能的單向 48V 轉 12V (400W) 電源轉換器。本設計採用偽隔離架構以保護 12V 負載。相移全橋拓撲結構可實現超過 95% 的峰值效率。輕載模式下，12V 輸出仍能維持完整穩壓，且待機功耗低於 100mW。300kHz/600kHz 開關頻率可實現小型化解決方案。
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參考設計

TIDA-01407 — 車用 400W、48V 電池輸入、12V 輸出電源參考設計

此參考設計為車用 400 瓦相移全橋式轉換器，可從 48V 汽車電池產生 12V 輸出。增強型全橋相移式控制器實作可編程延遲，確保在廣泛運作條件下實現零電壓切換 (ZVS)。輸出執行同步整流，可實現快速暫態回應與高迴路頻寬。系統在無負載狀態下可穩定輸出 12V，待機功耗低於 100mW。透過變壓器實現虛擬隔離，以防止 48V 電池對次級側短路。半橋式閘極驅動器可承受最高 120V 直流開機電壓。
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
TSSOP (PW) 24 Ultra Librarian
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