Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Fixed frequency, Leading edge blanking, Multi-topology, Soft start

Operating temperature range (°C)

-40 to 125

Duty cycle (max) (%)

50

TI functional safety category

Functional Safety-Capable

Rating

Catalog

Topology

Boost, Flyback, Forward

Vin (max) (V)

12

Control mode

Current

Features

Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Fixed frequency, Leading edge blanking, Multi-topology, Soft start

Operating temperature range (°C)

-40 to 125

Duty cycle (max) (%)

50

TI functional safety category

Functional Safety-Capable

SOIC (D)

8

29.4 mm² 4.9 x 6

TSSOP (PW)

8

19.2 mm² 3 x 6.4

100µA typical starting supply current
500µA typical operating supply current
Operation up to 1MHz
Internal soft start
Internal fault soft start
Internal leading-edge blanking of the current sense signal
1A totem-pole output
70ns typical response from current-sense to gate drive output
1.5% tolerance voltage reference
Same pinout as UC3842 and UC3842A

100µA typical starting supply current
500µA typical operating supply current
Operation up to 1MHz
Internal soft start
Internal fault soft start
Internal leading-edge blanking of the current sense signal
1A totem-pole output
70ns 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 offers a variety of package options, temperature range options, choice of maximum duty cycle, and choice of critical voltage levels. Lower reference parts such as the UCC2803 and UCC2805 fit best into battery-operated systems, while the higher reference and higher UVLO hysteresis of the UCC2802 and UCC2804 make these ideal choices for use in off-line power supplies.

The UCC280x series is specified for operation from –40°C to 125°C.

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 offers a variety of package options, temperature range options, choice of maximum duty cycle, and choice of critical voltage levels. Lower reference parts such as the UCC2803 and UCC2805 fit best into battery-operated systems, while the higher reference and higher UVLO hysteresis of the UCC2802 and UCC2804 make these ideal choices for use in off-line power supplies.

The UCC280x series is specified for operation from –40°C to 125°C.

filter

기타 AC/DC 및 DC/DC 컨트롤러(외장 FET) 찾기

다운로드 스크립트와 함께 비디오 보기 동영상

관심 가지실만한 유사 제품

open-in-new

대안 비교

비교 대상 장치보다 업그레이드된 기능을 지원하는 드롭인 대체품

UCC2813-1

활성

9.4V/7.4V UVLO 및 50% 듀티 사이클, -40C~85C를 지원하는 경제적인 저전력 BiCMOS 1MHz 전류 모드 PWM Recommended voltage on analog pins not specified

기술 자료

star

=TI에서 선정한 이 제품의 인기 문서

검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.

16개 모두 보기

	유형	직함		날짜
*	Data sheet	UCC280x Low-Power BiCMOS Current-Mode PWM Controllers datasheet (Rev. H)	PDF \| HTML	2025/04/25
	Application note	Conditioning a Switch-mode Power Supply Current Signal Using TI Op Amps (Rev. A)	PDF \| HTML	2021/06/11
	Application note	Understanding Inverting Buck-Boost Power Stages in Switch Mode Power Supplies (Rev. B)		2019/03/12
	Selection guide	Power Management Guide 2018 (Rev. R)		2018/06/25
	Application note	UCC38C42 Family of High-Speed BiCMOS Current-Mode PWM Controllers		2002/02/07
	Application note	Differences Between the UCC3813 and the UCC3800 PWM Families		2000/06/02
	Application note	DN-30 Programmable Electronic Circuit Breaker		1999/09/05
	Application note	DN-42A Design Considerations for Transitioning from UC3842 to the New UCC3802		1999/09/05
	Application note	DN-43 Simple Techniques to Generate a Negative Voltage Bias Supply		1999/09/05
	Application note	DN-46 Highly Efficient Low Power DC to DC Inverter Converts +5V Input to -3V Out		1999/09/05
	Application note	DN-48 Versatile Low Power SEPIC Converter Accepts Wide Input Voltage Range		1999/09/05
	Application note	DN-54 Innovative Buck Regulator Uses High Side N-Channel Switch Without Complex		1999/09/05
	Application note	DN-56A, Single Switch Flyback Circuit Converts + 5 V to +/- 12 V for RS-232/422		1999/09/05
	Application note	DN-65 Considerations in Powering BiCMOS ICs		1999/09/05
	Application note	U-111, Practical Considerations in Current Mode Power Supplies		1999/09/05
	Application note	U-133A UCC3800/1/2/3/4/5 BiCMOS Current Mode Control IC's		1999/09/05