UCC3801

ACTIVE

12V, 1A low power BICMOS 1MHz current mode PWM with 9.4V/7.4V UVLO and 50% duty cycle, 0C to 70C

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Data sheet

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

UCC3801

ACTIVE

Data sheet

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Product details

Vin (max) (V)

12

Operating temperature range (°C)

0 to 70

Control mode

Current

Topology

Boost, Flyback

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)

0 to 70

Control mode

Current

Topology

Boost, Flyback

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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Technical documentation

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	Type	Title		Date
*	Data sheet	UCC280x Low-Power BiCMOS Current-Mode PWM Controllers datasheet (Rev. G)	PDF \| HTML	12 May 2020
	Application note	Conditioning a Switch-mode Power Supply Current Signal Using TI Op Amps (Rev. A)	PDF \| HTML	11 Jun 2021
	Application note	Understanding Inverting Buck-Boost Power Stages in Switch Mode Power Supplies (Rev. B)		12 Mar 2019
	Selection guide	Power Management Guide 2018 (Rev. R)		25 Jun 2018
	User guide	UCC3813 Dual Output Boost Converter		09 Oct 2003
	Application note	Dual Output Boost Converter		09 Apr 2003
	Application note	UCC38C42 Family of High-Speed BiCMOS Current-Mode PWM Controllers		07 Feb 2002
	More literature	Seminar 300 Topic 8 - Switching Power Supply Design Review		15 Feb 2001
	More literature	Seminar 400 Topic 2 - Design of Flyback Transformers and Filter Inductors		15 Feb 2001
	More literature	Seminar 900 Topic 6 - High Power Factor Prereg Using SEPIC		15 Feb 2001
	Application note	Differences Between the UCC3813 and the UCC3800 PWM Families		02 Jun 2000
	Application note	DN-30 Programmable Electronic Circuit Breaker		05 Sep 1999
	Application note	DN-42A Design Considerations for Transitioning from UC3842 to the New UCC3802		05 Sep 1999
	Application note	DN-43 Simple Techniques to Generate a Negative Voltage Bias Supply		05 Sep 1999
	Application note	DN-46 Highly Efficient Low Power DC to DC Inverter Converts +5V Input to -3V Out		05 Sep 1999
	Application note	DN-48 Versatile Low Power SEPIC Converter Accepts Wide Input Voltage Range		05 Sep 1999
	Application note	DN-54 Innovative Buck Regulator Uses High Side N-Channel Switch Without Complex		05 Sep 1999
	Application note	DN-56A, Single Switch Flyback Circuit Converts + 5 V to +/- 12 V for RS-232/422		05 Sep 1999
	Application note	DN-65 Considerations in Powering BiCMOS ICs		05 Sep 1999
	Application note	U-111, Practical Considerations in Current Mode Power Supplies		05 Sep 1999
	Application note	U-133A UCC3800/1/2/3/4/5 BiCMOS Current Mode Control IC's		05 Sep 1999