UCC2895PW

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UCC2895PW

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IC OFFLINE SW FULL-BRG 20TSSOP

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Specifications

Attribute Value
Part Status Active
Output Type PWM
Output Configuration Positive
Topology Phase-Shifted Full-Bridge
Number of Outputs 1
Output Phases 1
Voltage - Supply (Vcc/Vdd) 10V ~ 16.5V
Frequency - Switching 1MHz
Duty Cycle (Max) 100%
Clock Sync Yes
Control Features Frequency Control, Soft Start, Sync
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package / Case 20-TSSOP (0.173", 4.40mm Width)
Supplier Device Package 20-TSSOP
Base Product Number UCC2895

Overview

Description

The UCC2895PW is a highly integrated, digital control IC designed for use in isolated power supply applications, particularly in the context of DC-DC converters. It is part of Texas Instruments' family of digital power management solutions, featuring advanced control algorithms to enhance efficiency and performance.
Key features include synchronous rectification, pulse-width modulation (PWM) control, and a built-in high-voltage startup circuit. The UCC2895PW supports both voltage and current mode control, which improves transient response and stability. It also incorporates various protection mechanisms such as over-voltage, over-current, and thermal shutdown to ensure safe operation.
The device typically interfaces with external MOSFETs and can drive them directly, allowing for optimized power conversion. Its digital design facilitates flexibility in configuration and tuning, enabling engineers to meet specific application requirements efficiently.
Overall, the UCC2895PW is suitable for applications such as industrial power supplies, telecom equipment, and server systems, providing a reliable solution for modern power conversion needs.

Equivalent

The UCC2895PW is a high-performance, resonant controller for power supplies. Equivalent products include the UCC2896, UCC2897, and UCC2898, which feature similar functionalities but may differ in specific parameters like output voltage and current limits. Other alternatives include controllers from competitors, such as the TL5001 from Texas Instruments or the LM5030 from Texas Instruments, which may offer similar features for resonant and LLC converter applications. Always verify specifications for compatibility.

Features

The UCC2895PW is a high-performance, synchronous rectified, current-mode controller designed for isolated and non-isolated power supplies. Key features include:
1. Multi-Mode Operation: Supports DCM, CCM, and QR modes for efficient operation across a wide load range.
2. Integrated Drivers: Includes high- and low-side gate drivers for synchronous rectification, enhancing efficiency.
3. Adaptive Dead-Time Control: Optimizes switching losses and minimizes noise.
4. Voltage Regulation: Provides tight output voltage regulation with ±1% accuracy.
5. Cycle-by-Cycle Current Limiting: Ensures safe operation under fault conditions.
6. Programmable Soft Start: Allows for controlled startup to minimize inrush current.
7. High Efficiency: Delivers high efficiency across various loads, extending thermal performance.
8. Wide Input Voltage Range: Supports a broad input voltage range, making it versatile for different applications.
These features make the UCC2895PW suitable for various applications, including power supplies for industrial, telecom, and consumer electronics.

Pinout

The UCC2895PW is a high-performance, integrated PWM (Pulse Width Modulation) controller designed for resonant and quasi-resonant power converters. It features a 28-pin TSSOP (Thin Shrink Small Outline Package) configuration.
Pin Count and Main Functions:
1. 28 Pins:
- Power Management: Controls power conversion.
- Voltage Regulation: Ensures stable output voltage.
- Frequency Control: Adjusts switching frequency.
- Dead Time Control: Manages switching transitions to reduce cross-conduction losses.
- Soft Start: Implements a controlled startup sequence to prevent overshoot.
- Current Sensing: Monitors and controls output current for protection and regulation.
- Protection Features: Includes overvoltage, undervoltage, and thermal protection.
The UCC2895PW is suitable for applications in isolated and non-isolated power supply systems, enhancing efficiency and reliability in various electronic devices.

Manufacturer

The UCC2895PW is manufactured by Texas Instruments (TI), a leading global semiconductor company. Texas Instruments designs and produces a wide range of analog and embedded processing chips, as well as digital signal processors (DSPs) and microcontrollers. Founded in 1930, TI is known for its innovation and has a significant presence in various markets, including automotive, industrial, communications, and consumer electronics.
Texas Instruments focuses on providing high-performance solutions for a variety of applications, emphasizing efficiency, precision, and reliability. The UCC2895PW is a digital controller used in power management applications, specifically for off-line and DC-DC power supply systems. TI’s commitment to research and development, along with its comprehensive portfolio of products, makes it a key player in the semiconductor industry. The company is also recognized for its educational initiatives and resources, helping to foster the next generation of engineers and technologists.

Application

The UCC2895PW is a digital control power converter IC primarily used in high-efficiency power supply applications. Key areas include:
1. DC-DC Converters: It facilitates the design of resonant and non-resonant power converters for various output voltage requirements.
2. Power Supply Units (PSUs): Applicable in server, telecom, and industrial power supplies for improved performance and efficiency.
3. Renewable Energy Systems: Used in solar inverters and battery management systems for efficient energy conversion.
4. Electric Vehicles (EVs): Helps in the development of charging systems and power management for EVs.
5. Consumer Electronics: Integrated into adapters and chargers to optimize power delivery and efficiency.
Overall, it enhances performance, reliability, and energy savings across diverse applications.

Package

The UCC2895PW is packaged in a TSSOP (Thin Shrink Small Outline Package) with 28 pins. This package type is designed for efficient thermal performance and space-saving in electronic circuits.