Datasheet Texas Instruments UC3854BQ — Datenblatt
Hersteller | Texas Instruments |
Serie | UC3854B |
Artikelnummer | UC3854BQ |
Datenblätter
Advanced High Power Factor Preregulator datasheet
PDF, 732 Kb, Revision: E, Datei veröffentlicht: Aug 25, 2006
Auszug aus dem Dokument
Preise
Status
Lifecycle Status | Obsolete (Manufacturer has discontinued the production of the device) |
Manufacture's Sample Availability | No |
Verpackung
Pin | 20 |
Package Type | UTR |
Parameter
Approx. Price (US$) | 1.35 | 1ku |
Control Method | CCM |
Device Type | Single-phase PFC |
Operating Supply Current(mA) | 12 |
Operating Supply(Max)(V) | 20 |
Operating Temperature Range(C) | 0 to 70 |
Package Group | PDIP SOIC |
Package Size: mm2:W x L (PKG) | See datasheet (PDIP) |
Peak Output Sink Current Gate Drive(A) | 1 |
Peak Output Source Current Gate Drive(A) | -1 |
Practical Operating Frequency(Max)(MHz) | 0.2 |
Rating | Catalog |
Special Features | > 750W Applications Average Current Mode Enable |
Startup Current(mA) | 0.25 |
UVLO Thresholds On/Off(V) | 10.5/10 |
Öko-Plan
RoHS | Not Compliant |
Pb Free | No |
Anwendungshinweise
- DN-44 UC3854A and UC3854B Advanced Power Factor Correction Control ICs (Rev. A)PDF, 158 Kb, Revision: A, Datei veröffentlicht: Nov 15, 2005
- AC Requirements for Power Factor Correction CircuitsPDF, 29 Kb, Datei veröffentlicht: Mar 28, 2002
This technical brief identifies the recommended range of IAC for each of the devices within the UCC3854 family of PFC controllers. - DN-66 UC3854A/B and UC3855A/B Provide Power Limiting with Sinusoidal Input (Rev. A)PDF, 80 Kb, Revision: A, Datei veröffentlicht: Nov 6, 2001
- Accurate PWM Duty Cycle ClampPDF, 58 Kb, Datei veröffentlicht: 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.
Modellreihe
Serie: UC3854B (7)
Herstellerklassifikation
- Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > Power Factor Correction