Datasheet Texas Instruments UC3861DW

Resonant-Mode Power Supply Controllers 16-SOIC 0 to 70

Datasheets

PDF, 3.9 Mb, Revision: B, File published: Sep 13, 2007

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Lifecycle Status	Active (Recommended for new designs)
Manufacture's Sample Availability	Yes

Control Method	Voltage
Duty Cycle(Max)	50 %
Frequency(Max)	500 kHz
Frequency(Min)	50 kHz
Gate Drive(Typ)	1 A
Operating Temperature Range	0 to 70 C
Package Group	SOIC
Rating	Catalog
Special Features	Error Amplifier,Green Mode,Light Load Efficiency,Multi-topology,Soft Start,Soft Switching
Topology	Full-Bridge,Half-Bridge,Push-Pull
UVLO Thresholds On/Off	16.5/10.5 V
Vin(Max)	22 V
Vin(Min)	10.5 V

RoHS

Compliant

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U-138 Zero Voltage Switching Resonant Power Conversion
PDF, 794 Kb, File published: Sep 5, 1999
This application note explores the technique of zero voltage switching in modern power conversion. It describes several ZVS topologies and applications limitations of the ZVS technique and a generalized design procedure. Two design examples are presented: a 50W DC/DC converter and an off-line 300W multiple output power supply. This discussion concludes with a performance comparison of ZVS conve
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U-122 A New Family of Integrated Circuits Controls Resonant Mode Power
PDF, 272 Kb, File published: Sep 5, 1999
This application note introduces the UC3861-8 family of ICs which are optimized for the control of zero-current-switched and zero-voltage-switched quasi-resonant converters. Differences among members of this device family result from the various combinations of UVLO thresholds and output options. The one-shot pulse steering logic is configured to program either on time for ZCS systems (UC1865-186

Series: UC3861 (4)

Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > PWM and Resonant Controller