UCC2813PW-2

Duty Cycle:	99%
Base Part Number:	UCC2813-2
Mounting Type:	Surface Mount
Supplier Device Package:	8-TSSOP
Package / Case:	8-TSSOP (0.173", 4.40mm Width)
Operating Temperature:	-55°C ~ 150°C (TJ)
Control Features:	Frequency Control
Fault Protection:	--
Frequency - Switching:	1MHz
Series:	--
Voltage - Supply (Vcc/Vdd):	8.3 V ~ 12 V
Voltage - Start Up:	12.5V
Topology:	Boost, Flyback, Forward
Voltage - Breakdown:	--
Internal Switch(s):	Yes
Output Isolation:	Non-Isolated
Part Status:	Active
Packaging:	Tube

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Introduction

The UCC2813PW-2 is an integrated circuit designed to help manage power supplies and dc-dc converters. It is part of the growing family of Pulse-Width Modulation (PWM) controller ICs from Texas Instruments. This integrated circuit family comes in various formats and is applicable to a number of applications. It is a high-voltage integrated circuit that is typically used in high current, low voltage applications.

Application Field

The UCC2813PW-2 is primarily used in offline power supplies with both ac and dc output. It is particularly well-suited to low voltage, high current applications such as LED lighting, general-purpose low voltage power conversion, small motor drivers, and large static power supplies.The UCC2813PW-2 is also used in dc-dc converters which step down voltage, allowing it to power efficient applications such as smartphones, tablets, and other mobile products. With its low cost and low power consumption, the UCC2813PW-2 is an attractive option for many power conversion applications.

Working Principle

When used in an offline power supply, the UCC2813PW-2 is typically put in a continuous conduction mode closed loop control topology. The device is capable of both low and high frequency operation supplemented by integrated loop compensation.The UCC2813PW-2 is also capable of operating in a discontinuous conduction mode in order to reduce input power losses. Additionally, the IC can withstand voltages up to 500V, making it suitable for applications such as low voltage, high power supplies.The UCC2813PW-2 has a built-in startup circuit and programmable over current protection (OCP). Over frequency protection (OVP) is also integrated which helps prevent ringing, yet allowing the device able to sustain very high switching frequencies.In torque mode operation, the device allows the user to program the frequency and peak current in order to achieve desired torque and/or speed performance.In addition to its over current protection, the UCC2813PW-2 has an output shutdown pin, which is used to disable the power output in case of an abnormal operating condition. Its adjustable on-time and off-time helps ensure reliable and safe operation of the connecting device.

Conclusion

The UCC2813PW-2 is an integrated circuit for managing power supplies and dc-dc converters. It is primarily used in an offline power supply with both ac and dc output as well as in dc-dc converters. The UCC2813PW-2 is both low-cost and power efficient, with an integrated startup circuit and over current protection. Its ability to withstand high voltages and operate in both continuous and discontinuous conduction mode makes it suitable for a range of efficient power conversion applications.

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