UCC24612-1DBVR

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UCC24612-1DBVR

SYNC RECTIFIER FLYBACK

  • Nhà sản xuất
  • Ông. Phần #UCC24612-1DBVR
  • Gói SOT-23 (DBV)-5
  • Bảng dữ liệu
  • Có sẵn7292

100% gốc & amp; Mới

24 giờ sẵn sàng để vận chuyển

Bảo hành 365 ngày

RFQ & amp; Nhận thêm Giảm giá

Thông số kỹ thuật

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
Applications Adapters
Voltage-Input 4V ~ 28V
Current-Supply 4 A
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case SC-74A, SOT-753

Tổng quan

Description

The UCC24612-1DBVR is a highly integrated synchronous rectifier (SR) controller designed by Texas Instruments for improving the efficiency of flyback power converters. It specifically targets applications in low to medium power adapters and chargers. This controller optimizes the performance of the secondary-side rectification process by driving an external N-channel MOSFET, replacing traditional diodes to reduce conduction losses.
Key features of the UCC24612-1 include its ability to automatically detect both discontinuous conduction mode (DCM) and quasi-resonant mode (QRM) to optimize efficiency across various load conditions. The device includes protections such as V_DS sensing for precise timing and adaptive turn-off to prevent cross-conduction, thereby enhancing reliability. It also incorporates low standby power consumption, making it suitable for achieving stringent energy standards.
The UCC24612-1 is typically housed in a SOT-23 package, which supports its use in compact designs. It simplifies the design process and improves the overall efficiency of power supply designs by reducing heat dissipation and improving thermal performance.

Features

The UCC24612-1DBVR is a high-performance synchronous rectifier controller designed for flyback converters. Some of its key features include:
1. Synchronous Rectification: Helps improve efficiency by reducing rectifier losses in flyback converters.
2. Low Power Consumption: Optimized for low standby power, making it suitable for energy-efficient applications.
3. Wide VDD Range: The controller operates over a wide supply voltage range, enhancing versatility.
4. Smart Gate Drive: Features adaptive gate drive control to minimize switching losses and enhance performance.
5. Programmable Turn-Off Threshold: Allows flexibility in setting the turn-off threshold to optimize performance for specific applications.
6. Fast Turn-Off: Ensures quick shut-off of the rectifier MOSFET, reducing reverse conduction and enhancing efficiency.
7. Built-In Protection: Includes features like over-temperature protection and VDD under-voltage lockout for enhanced reliability.
8. Compact Package: Available in a small SOT-23-6 package, offering space-saving benefits for compact designs.
9. Ease of Use: Designed to integrate easily into existing systems with minimal external components.
These features make the UCC24612-1DBVR an effective solution for improving the efficiency and performance of flyback converters in various applications.

Package

The UCC24612-1DBVR is housed in a SOT-23-6 package, which is a small outline transistor package with 6 pins. This package type is commonly used for surface-mount technology applications, providing a compact and efficient form factor for electronic circuits.

Pinout

The UCC24612-1DBVR is a synchronous rectifier controller from Texas Instruments. It typically comes in a 6-pin SOT-23 package. Here’s a brief overview of the functions associated with each pin:
1. VDD (Pin 1): Power supply pin for the controller.
2. GND (Pin 2): Ground reference for the IC.
3. SW (Pin 3): This pin connects to the switch node and provides the information about the system voltage and current for optimal synchronous rectification.
4. GATE (Pin 4): Controls the gate of the synchronous rectification MOSFET.
5. NC (Pin 5): No connection, not used functionally.
6. VS (Pin 6): Voltage sense input pin used for detecting voltage across the SR MOSFET.
The UCC24612-1 is designed to improve the efficiency of flyback converters by controlling an external MOSFET for synchronous rectification.

Manufacturer

The UCC24612-1DBVR is manufactured by Texas Instruments (TI). Texas Instruments is a global technology company that designs and manufactures semiconductors and various integrated circuits, which are used in a wide range of electronic applications. TI focuses on developing analog chips and embedded processors, serving industries such as automotive, communications, industrial, and personal electronics, among others.

Application

The UCC24612-1DBVR is a synchronous rectifier controller used in various power supply applications to improve efficiency. Key application areas include:
1. AC-DC power supplies in adapters and chargers.
2. Isolated DC-DC converters for industrial, telecom, and server power supplies.
3. Flyback converters to enhance efficiency and reduce power losses.
4. Solar inverters and renewable energy systems to improve power conversion efficiency.
Its ability to control MOSFETs for rectification makes it ideal for designs requiring high efficiency and compact size.

Equivalent

The UCC24612-1DBVR is a synchronous rectifier controller from Texas Instruments. Equivalent products from other manufacturers with similar functions might include the NCP4305 from ON Semiconductor, the TEA1795T from NXP Semiconductors, and the IR1167 from Infineon Technologies. These alternatives also provide synchronous rectification control for improved efficiency in power supply designs. When selecting an equivalent, it's important to compare specific parameters like voltage rating, switching frequency, and application requirements to ensure compatibility.

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