UCC2803

現行

具有 4.1V/3.6V UVLO 和 100% 占空比、-40C 至 125C 的 12V、1A 低功耗 BICMOS 1MHz 電流模式 PWM

產品詳細資料

Vin (max) (V) 12 Operating temperature range (°C) -40 to 125 Control mode Current Topology Boost, Flyback, Forward Rating Catalog Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Fixed frequency, Leading edge blanking, Multi-topology, Soft start Duty cycle (max) (%) 100
Vin (max) (V) 12 Operating temperature range (°C) -40 to 125 Control mode Current Topology Boost, Flyback, Forward Rating Catalog Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Fixed frequency, Leading edge blanking, Multi-topology, Soft start Duty cycle (max) (%) 100
SOIC (D) 8 29.4 mm² 4.9 x 6 TSSOP (PW) 8 19.2 mm² 3 x 6.4
  • 100-µA typical starting supply current
  • 500-µA typical operating supply current
  • Operation up to 1 MHz
  • Internal soft start
  • Internal fault soft start
  • Internal leading-edge blanking of the current sense signal
  • 1-A totem-pole output
  • 70-ns typical response from current-sense to gate drive output
  • 1.5% tolerance voltage reference
  • Same pinout as UC3842 and UC3842A
  • 100-µA typical starting supply current
  • 500-µA typical operating supply current
  • Operation up to 1 MHz
  • Internal soft start
  • Internal fault soft start
  • Internal leading-edge blanking of the current sense signal
  • 1-A totem-pole output
  • 70-ns typical response from current-sense to gate drive output
  • 1.5% tolerance voltage reference
  • Same pinout as UC3842 and UC3842A

The UCC280x family of high-speed, low-power integrated circuits contain all of the control and drive components required for off-line and DC-to-DC fixed frequency current-mode switching mode power supplies with minimal parts count.

These devices have the same pin configuration as the UCx84x family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.

The UCC280x family of high-speed, low-power integrated circuits contain all of the control and drive components required for off-line and DC-to-DC fixed frequency current-mode switching mode power supplies with minimal parts count.

These devices have the same pin configuration as the UCx84x family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.

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技術文件

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類型 標題 日期
* Data sheet UCC280x Low-Power BiCMOS Current-Mode PWM Controllers datasheet (Rev. G) PDF | HTML 2020年 5月 12日
Application note Conditioning a Switch-mode Power Supply Current Signal Using TI Op Amps (Rev. A) PDF | HTML 2021年 6月 11日
Application note Understanding Inverting Buck-Boost Power Stages in Switch Mode Power Supplies (Rev. B) 2019年 3月 12日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
Application note UCC38C42 Family of High-Speed BiCMOS Current-Mode PWM Controllers 2002年 2月 7日
Application note Differences Between the UCC3813 and the UCC3800 PWM Families 2000年 6月 2日
Application note DN-30 Programmable Electronic Circuit Breaker 1999年 9月 5日
Application note DN-42A Design Considerations for Transitioning from UC3842 to the New UCC3802 1999年 9月 5日
Application note DN-43 Simple Techniques to Generate a Negative Voltage Bias Supply 1999年 9月 5日
Application note DN-46 Highly Efficient Low Power DC to DC Inverter Converts +5V Input to -3V Out 1999年 9月 5日
Application note DN-48 Versatile Low Power SEPIC Converter Accepts Wide Input Voltage Range 1999年 9月 5日
Application note DN-54 Innovative Buck Regulator Uses High Side N-Channel Switch Without Complex 1999年 9月 5日
Application note DN-56A, Single Switch Flyback Circuit Converts + 5 V to +/- 12 V for RS-232/422 1999年 9月 5日
Application note DN-65 Considerations in Powering BiCMOS ICs 1999年 9月 5日
Application note U-111, Practical Considerations in Current Mode Power Supplies 1999年 9月 5日
Application note U-133A UCC3800/1/2/3/4/5 BiCMOS Current Mode Control IC's 1999年 9月 5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)。

模擬型號

UCC3803 PSpice Transient Model (Rev. B)

SLUM053B.ZIP (91 KB) - PSpice Model
模擬型號

UCC3803 TINA-TI Transient Spice Model

SLUM219.ZIP (28 KB) - TINA-TI Spice Model
模擬型號

UCC3803 TINA-TI Transient Start-Up Reference Design (Rev. A)

SLUM051A.TSC (195 KB) - TINA-TI Reference Design
模擬型號

UCC3803 TINA-TI Transient Steady-State Ref Design (Rev. A)

SLUM052A.TSC (152 KB) - TINA-TI Reference Design
模擬型號

UCCx803 & UCCx813-3 Unencrypted PSpice Transient Model

SLUM511.ZIP (6 KB) - PSpice Model
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (D) 8 Ultra Librarian
TSSOP (PW) 8 Ultra Librarian

訂購與品質

內含資訊:
  • RoHS
  • REACH
  • 產品標記
  • 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
內含資訊:
  • 晶圓廠位置
  • 組裝地點

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