Datasheet Texas Instruments UC1854BL883B

Datasheets

PDF, 732 Kb, Revision: E, File published: Aug 25, 2006

Extract from the document

Lifecycle Status	Obsolete (Manufacturer has discontinued the production of the device)
Manufacture's Sample Availability	No

Pin	20
Package Type	L

Replacement	UC1854BJ883B
Replacement Code	F

Control Method	CCM
Duty Cycle(Max)(%)	95
Operating Temperature Range(C)	-55 to 125
Package Group	CDIP
Package Size: mm2:W x L (PKG)	See datasheet (CDIP)
Rating	Military
Special Features	> 750W Applications Average Current Mode Enable
UVLO Thresholds On/Off(V)	10.5/10

RoHS	Not Compliant
Pb Free	No

Download
DN-44 UC3854A and UC3854B Advanced Power Factor Correction Control ICs (Rev. A)
PDF, 158 Kb, Revision: A, File published: Nov 15, 2005
Download
AC Requirements for Power Factor Correction Circuits
PDF, 29 Kb, File published: Mar 28, 2002
This technical brief identifies the recommended range of IAC for each of the devices within the UCC3854 family of PFC controllers.
Download
DN-66 UC3854A/B and UC3855A/B Provide Power Limiting with Sinusoidal Input (Rev. A)
PDF, 80 Kb, Revision: A, File published: Nov 6, 2001
Download
Accurate PWM Duty Cycle Clamp
PDF, 58 Kb, File published: Jan 25, 2002
Power supply applications using current sense transformers require a duty cycle clamp on the pulse width modulator (PWM) to ensure transformer reset. Not all PWMs come with a duty cycle clamp presenting a problem for the power supply designer. This application note shows how to implement a duty cycle clamp by using a simple delay circuit.

Series: UC1854B (6)

Semiconductors > Space & High Reliability > Power Management Products > Offline and Isolated DC/DC Controller and Converter