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See Technical Specifications

UCC2813DTR-0

Current Mode PWM Controller 1A 1000kHz 8-Pin SOIC T/R

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

UCC2813DTR-0
Datasheet:

UCC2813DTR-0 Datasheet (PDF)
Output Type:

Transistor Driver
Function:

Step-Up, Step-Up/Step-Down
Output Configuration:

Positive
Topology:

Boost, Flyback, Forward Converter
EDA/CAD Models:

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UCC2813DTR-0 General Description

The UCC3813-x device family of high-speed, low-power integrated circuits contains all of the control and drive components required for off-line and DC-to-DC fixed-frequency current-mode switching power supplies with minimal parts count.

These devices have the same pin configuration as the UC384x device family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.

The UCC3813-x device family offers a variety of package options, temperature-range options, choice of maximum duty cycle, and choice of critical voltage levels. Devices with lower reference voltage such as the UCC3813-3 and UCC3813-5 fit best into battery operated systems, while the higher reference and the higher UVLO hysteresis of the UCC3813-2 device and UCC3813-4 device make these ideal choices for use in off-line power supplies.

The UCC2813-x device series is specified for operation from –40°C to 85°C and the UCC3813-x device series is specified for operation from 0°C to 70°C.

Key Features

100-μA Typical Starting Supply Current
500-μA Typical Operating Supply Current
Operation to 1 MHz
Internal Soft Start
Internal Fault Soft Start
Internal Leading-Edge Blanking of the Current-Sense Signal
1-A Totem-Pole Output
70-ns Typical Response from Current-Sense to Gate-Drive Output
1.5% Tolerance Voltage Reference
Same Pinout as the UCC3802 Device, UC3842 Device, and UC3842A Device Families

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)DC DC Switching Controllers	Series	-
Output Type	Transistor Driver	Function	Step-Up, Step-Up/Step-Down
Output Configuration	Positive	Topology	Boost, Flyback, Forward Converter
Number of Outputs	1	Output Phases	1
Voltage - Supply (Vcc/Vdd)	6.9V ~ 12V	Frequency - Switching	-
Duty Cycle (Max)	99%	Synchronous Rectifier	No
Clock Sync	No	Serial Interfaces	-
Control Features	Frequency Control	Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount	Base Product Number	UCC2813