Datasheet Texas Instruments UC3846DWTR

Manufacturer	Texas Instruments
Series	UC3846
Part Number	UC3846DWTR

Current Mode PWM Controller 16-SOIC 0 to 70

Datasheets

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PDF, 1.6 Mb, Revision: C, File published: Jan 4, 2016

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Status

Lifecycle Status	Active (Recommended for new designs)
Manufacture's Sample Availability	No

Packaging

Pin	16
Package Type	DW
Industry STD Term	SOIC
JEDEC Code	R-PDSO-G
Package QTY	2000
Carrier	LARGE T&R
Device Marking	UC3846DW
Width (mm)	7.5
Length (mm)	10.3
Thickness (mm)	2.35
Pitch (mm)	1.27
Max Height (mm)	2.65
Mechanical Data	Download

Parametrics

Control Method	Current
Duty Cycle(Max)	50 %
Frequency(Max)	500 kHz
Gate Drive(Typ)	0.5 A
Operating Temperature Range	0 to 70 C
Package Group	SOIC
Rating	Catalog
Special Features	Error Amplifier,Multi-topology,Soft Start,Synchronization Pin
Topology	Boost,Flyback,Forward,Half-Bridge,Push-Pull
UVLO Thresholds On/Off	7.7/6.95 V
Vin(Max)	40 V
Vin(Min)	7 V

Eco Plan

RoHS

Compliant

Application Notes

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Modeling Analysis and Compensation of the Current-Mode Converter
PDF, 189 Kb, File published: Sep 5, 1999
As current-mode conversion increases in popularity several peculiarities associated with fixed-frequency peak-current detecting schemes have surfaced. These include instability above 50% duty cycle a tendency towards subharmonic oscillation non-ideal loop response and an increased sensitivity to noise. This application note attempts to show that the performance of any current-mode converter c
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U-93 A New Integrated Circuit for Current Mode Control
PDF, 411 Kb, File published: Sep 5, 1999
Advantages of current-mode control over conventional PWM approaches to switching power converters include automatic feed-forward automatic symmetry correction inherent current-limiting simple loop-compensation enhanced load-response and the capability for parallel operation. This application note introduces the first control integrated circuit specifically designed for this topology defines
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DN-45 UC3846 UC3856 and UCC3806 Push Pull PWM Current Mode Control ICs
PDF, 27 Kb, File published: Sep 5, 1999
The UC3856 is a pin-for-pin-compatible high-performance bipolar version of the industry standard UC3846. It can replace the UC3846 with few circuit modifications and it features increased speed higher gate-drive current and reduced propagation delays. The UCC3806 is a BiCMOS pin-for-pin compatible ultra-low-power version ideal for battery low-power and high-speed applications. The UCC3806

Model Line

Series: UC3846 (8)

UC3846DW UC3846DWG4 UC3846DWTR UC3846DWTRG4 UC3846N UC3846NG4 UC3846Q UC3846QTR

Manufacturer's Classification

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