Datasheet Texas Instruments UCC28521DWRG4 — Datenblatt

Erweiterter PWM / PFC-Kombinationsregler mit TEM / TEM-Modulation 20-SOIC -40 bis 85

Datenblätter

PDF, 781 Kb, Revision: D, Datei veröffentlicht: Nov 15, 2005

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

Replacement	UCC28510DWG4
Replacement Code	F

Approx. Price (US$)	2.15 \| 1ku
Control Method	CCM
Device Type	PFC+PWM
Operating Supply Current(mA)	4
Operating Supply(Max)(V)	18
Operating Temperature Range(C)	-40 to 85
Package Group	SOIC
Package Size: mm2:W x L (PKG)	20SOIC: 132 mm2: 10.3 x 12.8(SOIC)
Peak Output Sink Current Gate Drive(A)	3.5
Peak Output Source Current Gate Drive(A)	-2.5
Practical Operating Frequency(Max)(MHz)	0.5
Rating	Catalog
Special Features	750W Applications Average Current Mode Enable
Startup Current(mA)	0.1
UVLO Thresholds On/Off(V)	10.2/9.7

RoHS	Not Compliant
Pb Free	No

Evaluation Modules & Boards: UCC28528EVM
UCC28528 Evaluation Module
Lifecycle Status: Obsolete (Manufacturer has discontinued the production of the device)
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Evaluation Modules & Boards: UCC28521EVM
UCC28521 Evaluation Module
Lifecycle Status: Active (Recommended for new designs)
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UCC28517 100-W PFC power converter with 12-V, 8-W bias supply, Part 2
PDF, 224 Kb, Datei veröffentlicht: Feb 28, 2005
To conclude the review of the UCC28517 PFC supply, this article covers the design of the second 12-V, 8-W power stage to be used as an auxiliary bias supply.
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UCC28517 100-W PFC power converter with 12-V, 8-W bias supply, Part 1
PDF, 202 Kb, Datei veröffentlicht: Feb 28, 2005
Power factor corrected (PFC) preregulators are generally used in ac/dc converters operating above 75 W or to meet line harmonic requirements. This article reviews the design of a 100-W ac/dc power stage with PFC.
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A New Synchronization Circuit for Power Converters (Rev. A)
PDF, 209 Kb, Revision: A, Datei veröffentlicht: Apr 21, 2010
The synchronization of multiple PWM and PFC controllers is desirable for many reasons. The most common reason is that it keeps all the noise at one particular frequency and makes it easier to filter. The circuit described changes the slope of the ramp to lock the converterвЂ™s switching frequency to an applied signal by a phase locked loop turning it into a voltage controlled oscillator. Furthermore

Serie: UCC28521 (3)

Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > Power Factor Correction