UCC2805DTR

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UCC2805DTR

+BOM

IC REG CTRLR MULT TOPOLOGY 8SOIC

  • ManufacturerTexas Instruments

  • Mfr. Part #UCC2805DTR

  • In Stock9826

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Specifications

Attribute Value
Part Status Active
Applications PWM Controller
Voltage - Input -0.3V ~ 6.3V
Voltage - Supply 3.6V ~ 11V
Supply Current 500 µA
Operating Temperature -40°C ~ 125°C (TA)
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
Base Product Number UCC2805

Overview

Description

The UCC2805DTR is a high-performance, integrated controller designed for power factor correction (PFC) in switch-mode power supplies. Specifically, it employs a continuous conduction mode (CCM) to enhance energy efficiency and reduce harmonic distortion in AC to DC power conversion applications.
Key features include a wide input voltage range, programmable output voltage, and robust protection mechanisms such as overvoltage, undervoltage, and overcurrent protection. The UCC2805DTR also incorporates a soft-start function to limit inrush current during power-up, ensuring smoother operation.
It supports peak current control and features a high-speed operational amplifier for accurate current sensing, facilitating precise control over the output. The device can operate in both linear and pulse-width modulation (PWM) modes, enabling flexibility in design.
Overall, the UCC2805DTR is suitable for applications requiring high efficiency, small size, and regulatory compliance in consumer electronics, industrial equipment, and renewable energy systems.

Equivalent

The UCC2805DTR is a bi-directional, current mode, PWM controller for power factor correction. Equivalent products include the NCP1654, L6562, and MC33063. Other alternatives might be the TPS40210 and L6563, which also serve similar functions in power factor correction and PWM control applications. Always check the specifications and compatibility for specific designs.

Features

The UCC2805DTR is a high-performance, dual-mode, pulse-width modulation (PWM) controller designed for power supply applications. Key features include:
1. Dual-Mode Operation: Supports both continuous conduction mode (CCM) and discontinuous conduction mode (DCM) for enhanced efficiency.
2. Integrated Functions: Includes features like voltage regulation, current limiting, and soft-start capabilities.
3. High Efficiency: Designed for efficient performance in power conversion applications, minimizing energy loss.
4. Wide Input Voltage Range: Operates over a broad input voltage range, making it versatile for various applications.
5. Adjustable Frequency: Allows users to set the switching frequency, optimizing performance for specific design requirements.
6. Enhanced Protection: Incorporates over-voltage, under-voltage, and over-temperature protection mechanisms.
7. Compact Package: Available in a space-saving package, suitable for compact designs.
These features make the UCC2805DTR ideal for applications such as power supplies, DC-DC converters, and LED drivers.

Pinout

The UCC2805DTR is a dual synchronous boost controller with a pin count of 16. It is designed for high-efficiency power conversion applications, including LED drivers and industrial power supplies.
Here are the key pin functions:
1. VIN: Input voltage supply.
2. GND: Ground reference.
3. COMP: Compensation node for error amplifier.
4. CSN: Negative input for current sensing.
5. CSP: Positive input for current sensing.
6. SS: Soft-start function to control the ramp-up time of output voltage.
7. RAMP: Ramp generator input for controlling the switching frequency.
8. VREF: Reference voltage output.
9. ISNS: Current sense input.
10. SW: Switch node for the power stage.
11. BOOT: Bootstrap capacitor connection.
12. LIM: Current limit setting.
13. DVDD: Drive supply voltage.
14. SWITCH: Output for the synchronous switch.
15. EN: Enable input to activate the device.
16. CT: Timing capacitor connection for frequency setting.
These features facilitate the implementation of efficient power conversion topologies.

Manufacturer

The UCC2805DTR is manufactured by Texas Instruments (TI), a leading global semiconductor company. Founded in 1930 and headquartered in Dallas, Texas, Texas Instruments specializes in designing and manufacturing a wide range of analog and embedded processing chips. The company serves various markets, including automotive, industrial, communications, and consumer electronics. TI is known for its innovation in power management solutions, microcontrollers, and signal processing technology. The UCC2805DTR specifically is a high-performance, dual-phase, synchronous boost controller designed for efficient power conversion applications, highlighting TI's focus on developing advanced technologies to meet the needs of modern electronic systems.

Application

The UCC2805DTR is a high-performance, dual-phase, interleaved PFC (Power Factor Correction) controller widely used in various applications, including:
1. AC-DC Power Supplies: Enhances the efficiency and power factor of converters.
2. LED Drivers: Provides constant current control for LED lighting applications.
3. Industrial Equipment: Used in motor drives and industrial power supplies to ensure compliance with power regulations.
4. Consumer Electronics: Utilized in adapters and chargers for laptops and other devices to improve energy efficiency.
5. Renewable Energy Systems: Applied in solar inverters and battery chargers to optimize energy conversion.
Overall, it supports applications requiring high efficiency and low harmonic distortion.

Package

The UCC2805DTR is packaged in a 16-pin TSSOP (Thin Shrink Small Outline Package) form factor. This package type is designed for compact applications, providing a space-efficient solution for integrating the device into electronic circuits.

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