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Texas Instruments UCC24630 同步整流器控制器

德州仪器 UCC24630 同步整流控制器是一款用于二次侧同步整流（SR） N 沟道 MOSFET 功率器件的高性能控制器和驱动器。控制器和 MOSFET 的组合构成了一种近似完美的二极管整流器。该解决方案直接降低了整流器的功耗，由于效率综合提升，还减少了一次侧损耗。UCC24630 采用伏秒平衡控制方法，适用于反激式电源。由于 器件不直接与 MOSFET 漏极相连，在宽输出电压范围内尤其如此。宽幅 VDD 工作范围、VPC 电压和消隐时间的宽幅编程范围，允许其在各种反激变换器设计中使用。

特性

  • Secondary-side SR controller optimized for 5V to 24V flyback systems
  • Operating frequency Up to 200kHz
  • Volt-second balance SR on-time control
  • Minimize effect of MOSFET device and layout inductance
  • CCM operation compatibility
  • Compatible with PSR and SSR control
  • Auto low-power detect and 110µA standby mode current
  • Wide VDD range from 3.6V to 28V
  • Rail-to-rail gate driver with 13V clamp
  • Open and short pin fault protection

应用

  • 5V to 24V output flyback and forward converters
  • USB-PD adapters and chargers with Type-C connector
  • Chargers for smartphones and tablets
  • Notebook and ultrabook adapters
  • High efficiency auxiliary power in server, desktop, and appliances
  • Industrial and medical SMPS

TI Reference Design

Functional Block Diagram

框图 - Texas Instruments UCC24630 同步整流器控制器

UCC24630EVM-636 Evaluation Module (EVM)

Texas Instruments UCC24630EVM-636 Evaluation Module (EVM) is designed to help evaluate the UCC24630 Synchronous Rectification Controller. This evaluation module is a high efficiency 65W AC/DC design using the UCC24630 Synchronous Rectification Controller. It is used as a Universal input (85VAC to 265VAC) to 19.5V @ 3.33A output. This exceeds CoC-5 Tier2 and DOE Level VI performance requirements for external power supplies.

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发布日期: 2015-04-23 | 更新日期: 2022-03-11