UCC28950-Q1

現行

具同步整流的車用 8V 至 20V 全橋式相位轉換 PWM 控制器

產品詳細資料

Vin (max) (V) 17 Operating temperature range (°C) -40 to 125 Control mode Current Topology Phase-shifted full bridge Rating Automotive Features Adjustable switching frequency, Current limiting, Error amplifier, Light-load efficiency, SR logic, Soft start, Soft switching Duty cycle (max) (%) 97
Vin (max) (V) 17 Operating temperature range (°C) -40 to 125 Control mode Current Topology Phase-shifted full bridge Rating Automotive Features Adjustable switching frequency, Current limiting, Error amplifier, Light-load efficiency, SR logic, Soft start, Soft switching Duty cycle (max) (%) 97
TSSOP (PW) 24 49.92 mm² 7.8 x 6.4
  • 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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類型 標題 日期
* Data sheet UCC2895x-Q1 Automotive Phase-Shifted Full-Bridge Controller for Wide-Input Voltage Range Applications datasheet (Rev. C) PDF | HTML 2024年 10月 17日
Application note UCC28950 600W Phase Shifted Full Bridge Design Review/Application Report (Rev. D) PDF | HTML 2022年 3月 4日
Application note Making the Correct Choice: UCC28950-Q1 or UCC28951-Q1 2017年 11月 13日
More literature Design review of a 2-kW parallelable power supply module 2016年 8月 17日
More literature Design review of a 2-kW parallelable power supply module (PPT) 2016年 8月 17日
EVM User's guide 600-W, Phase-Shifted, Full-Bridge Converter (Rev. A) 2010年 5月 19日

設計與開發

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開發板

UCC28950EVM-442 — UCC28950 600W 相移全橋轉換器評估模組

The UCC28950EVM-442 is a 600-W phase-shifted full-bridge converter that converts a 370 V to 410-V DC input to a regulated 12-V output. This converter was designed to maintain ZVS down to 50% load. This 600-W EVM was designed to demonstrate how the UCC28950 control device could be used in (...)

使用指南: PDF
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計算工具

SLUC210 UCC28950 MathCAD Design Tool

支援產品和硬體

支援產品和硬體

產品
AC/DC 和 DC/DC 控制器 (外部 FET)
UCC28950 具有同步整流控制的環保全橋相移式轉換器控制器 UCC28950-Q1 具同步整流的車用 8V 至 20V 全橋式相位轉換 PWM 控制器
計算工具

SLUC222 UCC28950 Excel Design Tool

支援產品和硬體

支援產品和硬體

產品
AC/DC 和 DC/DC 控制器 (外部 FET)
UCC28950 具有同步整流控制的環保全橋相移式轉換器控制器 UCC28950-Q1 具同步整流的車用 8V 至 20V 全橋式相位轉換 PWM 控制器
硬體開發
開發板
UCC28950EVM-442 UCC28950 600W 相移全橋轉換器評估模組
封裝 針腳 CAD 符號、佔位空間與 3D 模型
TSSOP (PW) 24 Ultra Librarian

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  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
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  • 組裝地點

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