Datasheet Texas Instruments UCC2809P-2

ManufacturerTexas Instruments
SeriesUCC2809-2
Part NumberUCC2809P-2
Datasheet Texas Instruments UCC2809P-2

Economy Primary Side Controller 8-VSSOP -40 to 85

Datasheets

Economy Primary Side Controller datasheet
PDF, 1.3 Mb, Revision: B, File published: Nov 19, 2004
Extract from the document

Prices

Status

Lifecycle StatusActive (Recommended for new designs)
Manufacture's Sample AvailabilityYes

Packaging

Pin8
Package TypeDGK
Industry STD TermVSSOP
JEDEC CodeR-PDSO-G
Package QTY80
CarrierTUBE
Device Marking28092
Width (mm)3
Length (mm)3
Thickness (mm).97
Pitch (mm).65
Max Height (mm)1.07
Mechanical DataDownload

Parametrics

Control MethodCurrent,Feedforward,Voltage
Duty Cycle(Max)70 %
Frequency(Max)1000 kHz
Gate Drive(Typ)0.8 A
Operating Temperature Range-40 to 85 C
Package GroupVSSOP
RatingCatalog
Special FeaturesMulti-topology,Soft Start
TopologyBoost,Flyback,Forward
UVLO Thresholds On/Off15/8 V
Vin(Max)19 V
Vin(Min)8 V

Eco Plan

RoHSCompliant

Design Kits & Evaluation Modules

  • Evaluation Modules & Boards: UCC3809EVM
    UCC3809 Evaluation Module
    Lifecycle Status: Active (Recommended for new designs)

Application Notes

  • Programming the UCC3809 for 90% Maximum Duty Cycle Clamp
    PDF, 44 Kb, File published: Jun 4, 2001
    Normally, the UCC3809 programmable duty cycle clamp feature is limited to 70% maximum duty cycle. The described technique shows how the maximum duty cycle clamp can be programmed to achieve a 90% on-time of the switching period.
  • U-168 Implementing a Practical Off-line Lithium-Ion Charger Using the UCC3809
    PDF, 579 Kb, File published: Sep 5, 1999
    The UCC3809 family of BCDMOS economy low-power integrated circuits contains all the control and drive circuitry required for off-line and isolated DC-to-DC fixed-frequency current-mode switching power supplies with minimal external parts count. The UCC3956 family of Switch-Mode Lithium-Ion Battery Charger Controllers accurately controls lithium-ion battery charging with a highly efficient average
  • DN-89 Comparing the UC3842, UCC3802, and UCC3809 Primary Side PWM Controllers
    PDF, 75 Kb, File published: Sep 5, 1999
    Despite the fact that the UC3842 and the UCC3802 PWM Controllers are pin-for-pin compatible, they are not drop-in replacements for each other. Designed as the next generation '42, the UCC3809 also has differences that prevent a simple drop-in substitute. This design note will help the user change from either the UC3842 or the UCC3802 to the UCC3809 in an existing design. A table identifies the mos
  • U-165 Design Rvw: Isolated 50 W Flyback Converter Using UCC3809 and UC3965
    PDF, 266 Kb, File published: Sep 5, 1999
    The flyback power stage is a popular choice for single and multiple output DC-to-DC converters at power levels of 150W or less. Without the output inductor required in buck-derived topologies, such as the forward or push-pull converter, the component count and cost are reduced. This application note will re-view the design procedure for the power stage and control electronics of a flyback converte
  • DN-62 Switching Power Supply Topology Voltage Mode vs. Current Mode
    PDF, 66 Kb, File published: Sep 5, 1999
    This design note explains the differences between voltage-mode and current-mode switching power supply topologies. It includes a circuit diagram for each mode and suggests criteria for choosing which mode to use.

Model Line

Manufacturer's Classification

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

Other Names:

UCC2809P2, UCC2809P 2

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