UCC2804

現行

具有 12.5V/8.3V UVLO 和 50% 占空比、-40C 至 125C 的 12V、1A 低功耗 BICMOS 1MHz 電流模式 PWM

立即訂購

產品規格表

document-pdfAcrobat UCC280x Low-Power BiCMOS Current-Mode PWM Controllers datasheet (Rev. G) (英文) PDF | HTML

UCC2804

現行

產品規格表

立即訂購

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) (%)

50

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) (%)

50

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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	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