UCC3813PW-3

Frequency - Switching:	31kHz
Base Part Number:	UCC3813-3
Supplier Device Package:	8-TSSOP
Package / Case:	8-TSSOP (0.173", 4.40mm Width)
Operating Temperature:	0°C ~ 70°C (TA)
Control Features:	Frequency Control
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	No
Duty Cycle (Max):	99%
Series:	--
Voltage - Supply (Vcc/Vdd):	3.6 V ~ 12 V
Output Phases:	1
Number of Outputs:	1
Topology:	Boost, Flyback, Forward Converter
Output Configuration:	Positive
Function:	Step-Up, Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tube

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

UCC3813PW-3 Application Field and Working Principle

The UCC3813PW-3 is a Pulse Width Modulation (PWM) switching controller designed for use in switch mode power supplies operating off an unregulated DC supply. It’s part of TI’s focus buffer family of high speed, low voltage PWM controllers that integrates a low voltage regulator, high voltage error amplifier, leading edge modulator and output stage. It comes in a low profile 8-pin SOIC package and is suitable for applications that require high efficiency and reliable operation such as servers, embedded systems, enterprise systems and other linear power supplies.

DC-DC Converters and Switching Regulators

The UCC3813PW-3 is part of a family of DC-DC converter and switching regulators that provide high efficiency power conversion. Switch mode power supplies are used in many applications and are popular for their ability to efficiently convert an unregulated DC voltage input to a precisely regulated DC output voltage. They use a switching regulator technology to control the output voltage. The UCC3813PW-3 is designed to provide accurate and stable power to the output by connecting it to the unregulated supply and using the PWM control loop to provide a precise output level.

Features and Specifications

The UCC3813PW-3 features a high voltage error amplifier with a gain of 80 mV/V and a power up reset. It also features a leading edge modulator that is capable of drive switching frequencies up to 100kHz. Additional features include an adjustable dead time, optional synchronous rectifier control, and an output stage with integrated drivers. It’s also available in an 8-pin SOIC package.The UCC3813PW-3 has a wide operating temperature range of -40°C to +125°C and is rated for an output current of 1.5A. It can support an input voltage range of 5.5V to 25V and an output voltage range from 0.8V up to 15V. It also has a fully programmable PWM control loop with a ±14V range for the current mode and ±4V for the voltage mode.

Working Principle of the UCC3813PW-3

The UCC3813PW-3 follows a current mode PWM control algorithm with a precision error amplifier and modulator to control the output voltage. The error amplifier compares the measured output voltage to the desired voltage level and adjusts the modulator accordingly. The modulator then controls the output by switching the power MOSFETs in the output stage on and off at a precise frequency.The UCC3813PW-3 has two different control modes, current and voltage. In current mode, the error amplifier compares the actual output voltage to the desired voltage and then adjusts the modulated signal to keep the output current constant. In voltage control mode, the modulator is adjusted to control the output voltage and the output current is varied as needed.

Applications of UCC3813PW-3

The UCC3813PW-3 is a versatile and reliable controller for switch mode power supplies. It’s a suitable choice for embedded systems and servers, enterprise systems, telecom and networking, post-regulation circuits, and other linear power supplies. It’s also used in LED drivers, motor control applications, point of load and digital signal processors.

Conclusion

The UCC3813PW-3 is a versatile and reliable PWM controller designed for use in switch mode power supplies operating off an unregulated DC supply. It features a high speed low voltage PWM controller with integrated low voltage regulator, high voltage error amplifier, leading edge modulator and output stage, it’s available in an 8 pin SOIC package and is suitable for many applications, such as servers, embedded systems and enterprise systems.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description