UCC2807DTR-3

Frequency - Switching:	202kHz
Base Part Number:	UCC2807-3
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Control Features:	--
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	No
Duty Cycle (Max):	78%
Series:	--
Voltage - Supply (Vcc/Vdd):	4.1 V ~ 13.5 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:	Tape & Reel (TR)

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UCC2807DTR-3 Application Field and Working Principle

The UCC2807DTR-3 is a PMIC- Voltage Regulators - DC DC Switching Controller ideal for a wide range of applications. It offers the benefits of an easy to use, low cost, high reliability solution, and is accessible in various packages.

Features

The UCC2807DTR-3 offers a wide range of features, including:

• Two independent input and output channels
• High operational efficiency of up to 95%
• High frequency operation up to 500kHz
• Advanced transient protection features
• Automatic or manual configuration and current monitoring
• Automatic sync of power stage switching frequency to input voltage and current
• Soft start with 0.25ms slew rate

The UCC2807DTR-3 is a complete solution that includes both an integrated high voltage DC/DC converter and a high current output stage. It is a feature-rich part that provides high efficiency and robustness, while being easy to configure and operate.

Application Field

The UCC2807DTR-3 can be used in a variety of applications, including:

• Notebook computers and laptops
• Industrial PCs
• Demanding medical electronics
• Point-of-load power supplies for high current systems
• Telecommunications
• Military and avionics systems
• High power LED drivers

The UCC2807DTR-3 is an ideal choice for applications that require high power, high efficiency, and operational flexibility.

Working Principle

The UCC2807DTR-3 is a precision current mode control IC. The device operates through a constant frequency oscillator, integrating a voltage reference that sets the output voltage level. The current mode control also provides certain warning messages, such as very low DC oscillator frequency and very low peak-to-peak output ripple. The UCC2807DTR-3 has a selectable quasi-resonant burst mode that allows for the controller to switch off and improve the efficiency of the power stage for the light load conditions. It also features an effective loop compensation circuitry, current limit protection and voltage clamp, as well as under-voltage and over-voltage lockouts. In addition, the device has two independent outputs and two separate current sensors, allowing for increased design flexibility. It also features fault monitoring functions, providing status warnings in cases such as an output short, over temperature, and a disabled supply voltage.

Conclusion

The UCC2807DTR-3 is a PMIC - Voltage Regulators - DC DC Switching Controller that is ideal for a wide range of applications. Its impressive feature set and advanced protection and control functions allow it to deliver a high level of power and reliability, in a cost effective solution.

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