Datasheet Texas Instruments UCC3889NG4

Off-Line Power Supply Controller 8-PDIP 0 to 70

Datasheets

PDF, 1.1 Mb, Revision: A, File published: Feb 20, 2003

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

Control Method	Feedforward,Voltage
Duty Cycle(Max)	55 %
Frequency(Max)	250 kHz
Gate Drive(Typ)	0.2 A
Operating Temperature Range	0 to 70 C
Package Group	PDIP
Rating	Catalog
Special Features	Error Amplifier,Soft Start
Topology	Flyback
UVLO Thresholds On/Off	8.4/6.3 V
Vin(Max)	9.3 V
Vin(Min)	8.4 V

RoHS

Compliant

Evaluation Modules & Boards: UCC3889EVM
UCC3889 Evaluation Module
Lifecycle Status: Active (Recommended for new designs)
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DN-59A UCC3889 Bias Supply Controller EVM Kit - Schematic
PDF, 144 Kb, File published: Sep 5, 1999
This design note presents a schematic and a photograph of the top-side layout for the UCC3889 Off-Line Bias Supply Controller IC Evaluation Kit. This board accepts both conventional "through-hole" or leaded components as well as their surface-mount counterparts. An additional prototyping area allows engineers to further customize these units to address their projects' specific needs. Component lis
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U-149 Elegantly Simple Off-Line Bias Supply for Very Low Power Applications
PDF, 328 Kb, File published: Sep 5, 1999
The UCC3889 controller is an off-line, low-power, low-voltage, regulated-bias power supply. The unique circuit topology in this device can be visualized as two cascaded flyback converters, each operating in the discontinuous mode, and both driven from a single external power switch. The significant benefit of this approach is voltage conversion ratios of 400V to 12V, with no transformer and low in

Series: UCC3889 (5)

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