UCC2895DW

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UCC2895DW

+Nomenclature

IC OFFLINE SW FULL-BRDG 20SOIC

  • FabricantTexas Instruments

  • Pièce fabricant #UCC2895DW

  • Package SOIC (DW)-20

  • En stock6560

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Spécifications

Attribut Valeur
Package Tube
ProductStatus Active
OutputType PWM
OutputConfiguration Positive
Topology Phase-Shifted Full-Bridge
NumberofOutputs 1
OutputPhases 1
Voltage-Supply(Vcc/Vdd) 10V ~ 16.5V
Frequency-Switching 1MHz
DutyCycle(Max) 100%
ClockSync Yes
ControlFeatures Frequency Control, Soft Start, Sync
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 20-SOIC (0.295, 7.50mm Width)

Présentation

Description

The UCC2895DW is a high-performance PWM controller designed by Texas Instruments for various power supply applications, including high-efficiency and isolated DC-DC converters. It is part of the UCC2895 series, featuring advanced control techniques for power conversion systems. The device supports both voltage and current mode control and is suitable for applications requiring full-bridge, half-bridge, and push-pull topologies.
Key features include a programmable switching frequency up to 1 MHz, offering flexibility for efficient design and reduced component size. The UCC2895DW integrates soft-start, slope compensation, and advanced fault protection mechanisms such as overcurrent and thermal shutdown, enhancing reliability and safety in power systems.
The device comes in a 20-pin SOIC package (DW suffix), which facilitates easy handling and compact PCB design. The UCC2895DW is widely used in telecom, server, and industrial power supplies, where precision and reliability are critical. Its versatility, combined with robust features, makes it a popular choice for engineers designing sophisticated power systems.

Equivalent

The UCC2895DW is a PWM controller IC used in high-frequency power supply applications. Equivalent products include the UCC2893 and UCC2897A from Texas Instruments, as they share similar functionalities and application scenarios. Other alternatives might include the LTC3722 from Analog Devices and the NCP1562 from ON Semiconductor, though these may not be direct drop-in replacements and could require design adjustments. Always verify specifications and pin compatibility when considering equivalents.

Features

The UCC2895DW is a versatile PWM controller designed for high-performance applications requiring precise control of power converters. Key features include:
1. Phase-Shifted Full-Bridge Control: It supports phase-shifted control to reduce switching losses, enhancing efficiency.

2. Synchronous Rectification: The controller optimizes synchronous rectifier timing for improved efficiency in power conversion.
3. Adaptive Delay: Provides adaptive delay control for the switching transistors to minimize body-diode conduction time, further improving efficiency.
4. Programmable Switching Frequency: Its switching frequency is programmable up to 1 MHz, offering flexibility for various applications.
5. Under-Voltage Lockout (UVLO): Ensures the system operates only when the voltage level is adequate, preventing malfunction.
6. Soft Start Capability: This feature helps in reducing inrush current during startup, prolonging the life of components.
7. Overcurrent Protection: Protects the system against overcurrent conditions, enhancing reliability.
8. Synchronization Capability: It can be synchronized with an external clock for multi-phase applications.
9. Fault Management: Includes features for detecting and managing fault conditions, ensuring robust operation.
The UCC2895DW is suitable for applications like high-density power supplies and telecom systems where efficiency and reliability are critical.

Manufacturer

The UCC2895DW is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of electronic components. The company is well-known for its analog and embedded processing products, which are utilized in various applications across industries such as automotive, industrial, personal electronics, and communications equipment. TI is recognized for its innovation in chip technology and its contributions to making electronics more efficient and reliable.

Application

The UCC2895DW is a phase-shifted full-bridge PWM controller used in power electronics applications. It is commonly applied in isolated DC-DC converters and power supplies, particularly where high efficiency and precise control are needed. Typical areas include telecommunications power systems, industrial power supplies, server and data center power solutions, and renewable energy systems like solar inverters. Its ability to reduce switching losses makes it suitable for high-power and high-density applications. Additionally, it can be used in motor drives and battery charging systems, where efficient energy conversion is critical.

Package

The UCC2895DW is a Texas Instruments device available in an SOIC (Small Outline Integrated Circuit) package with 20 pins, denoted as DW in Texas Instruments' package marking. This package type is commonly used for surface-mounted applications.

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