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AC/DC 和 DC/DC 控制器 (外部 FET)

UCC256304

不推薦在新設計中採用

支援低待機功耗且具有高壓啟動功能的寬輸入電壓 LLC 全橋式控制器

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產品規格表
UCC256304 不建議用於新設計
儘管為了支援以前的設計而繼續生產此項產品，但我們並不建議用在新設計上。考量下列其中一項替代產品：
open-in-new 比較替代產品
引腳對引腳的功能與所比較的產品相同
UCC256404 現行 具有超低功耗、超靜音待機運作和高電壓啟動功能的 LLC 全橋式控制器 This part offers lower audible noise in applications
功能相同，但引腳輸出與所比較的產品不同
最新 UCC25660 現行 寬 VIN 和 VOUT 750kHz LLC 控制器 Capable of higher operating frequency and supports wider VIN/VOUT operation

UCC256304

不推薦在新設計中採用
產品規格表 立即訂購

產品詳細資料

Vin (min) (V) 13 Vin (max) (V) 30 Operating temperature range (°C) -40 to 125 Control mode Current Topology Half bridge, LLC Rating Catalog Features High voltage gate driver integrated, High voltage startup, Hybrid hysteretic control, Light load efficiency, Over Temperature Protection, Wide AC input, Wide DC input, X capacacitor discharge integrated
Vin (min) (V) 13 Vin (max) (V) 30 Operating temperature range (°C) -40 to 125 Control mode Current Topology Half bridge, LLC Rating Catalog Features High voltage gate driver integrated, High voltage startup, Hybrid hysteretic control, Light load efficiency, Over Temperature Protection, Wide AC input, Wide DC input, X capacacitor discharge integrated
SOIC (DDB) 14 59.4 mm² 9.9 x 6
  • Hybrid Hysteretic Control (HHC)
    • Best-in-Class Transient Response
    • Easy Compensation Design
  • Optimized Low Power Features Enable 75 mW
    Standby Power Design with PFC on
    • Advanced Burst Mode
      Opto-Coupler Low Power Operation
    • Helps Enable Compliance to CoC Tier II Standard
  • Fast Exit from Burst Mode
  • Improved Capacitive Region Avoidance Scheme
  • Adaptive Dead-Time
  • Internal High-Side Gate Drivers
    (0.6-A and 1.2-A Capability)
  • Robust Soft Start with No Hard Switching
  • Over Temperature, Output Over Voltage, Input
    Over and Under Voltage Protection with
    Three Levels of Over Current Protections
  • Wide Operating Frequency Range
    (35 kHz to 1 MHz)
  • Nemko Certification for X Cap Discharge Function
  • Wide DC Input Range
  • Enables Wide AC Input Range
  • PFC Startup Not Required For LLC Startup
  • Create a Custom Design Using the UCC256304 With the WEBENCH® Power Designer
  • Hybrid Hysteretic Control (HHC)
    • Best-in-Class Transient Response
    • Easy Compensation Design
  • Optimized Low Power Features Enable 75 mW
    Standby Power Design with PFC on
    • Advanced Burst Mode
      Opto-Coupler Low Power Operation
    • Helps Enable Compliance to CoC Tier II Standard
  • Fast Exit from Burst Mode
  • Improved Capacitive Region Avoidance Scheme
  • Adaptive Dead-Time
  • Internal High-Side Gate Drivers
    (0.6-A and 1.2-A Capability)
  • Robust Soft Start with No Hard Switching
  • Over Temperature, Output Over Voltage, Input
    Over and Under Voltage Protection with
    Three Levels of Over Current Protections
  • Wide Operating Frequency Range
    (35 kHz to 1 MHz)
  • Nemko Certification for X Cap Discharge Function
  • Wide DC Input Range
  • Enables Wide AC Input Range
  • PFC Startup Not Required For LLC Startup
  • Create a Custom Design Using the UCC256304 With the WEBENCH® Power Designer

The UCC256304 is a fully featured LLC controller with integrated high-voltage gate driver. It has been designed to pair with a PFC stage to provide a complete power system using a minimum of external components. The resulting power system is designed to meet the most stringent requirements for standby power without the need for a separate standby power converter.UCC256304 uses hybrid hysteretic control to provide best in class line and load transient response. The control makes the open loop transfer function a first order system so that it’s very easy to compensate and is always stable with proper frequency compensation.

The UCC256304 is unique in that the controller is able to operate over a large DC input range. This is accomplished by making the input overvoltage sense threshold much larger than the input voltage start threshold. This allows the LLC to startup and enter a low power standby mode without the need to enable the PFC and enables the LLC to accommodate an extensive range of common AC inputs.

UCC256304 provides a highly efficient burst mode with consistent burst power level during each burst on cycle. The burst power level is programmable and adaptively changes with input voltage.

The UCC256304 is a fully featured LLC controller with integrated high-voltage gate driver. It has been designed to pair with a PFC stage to provide a complete power system using a minimum of external components. The resulting power system is designed to meet the most stringent requirements for standby power without the need for a separate standby power converter.UCC256304 uses hybrid hysteretic control to provide best in class line and load transient response. The control makes the open loop transfer function a first order system so that it’s very easy to compensate and is always stable with proper frequency compensation.

The UCC256304 is unique in that the controller is able to operate over a large DC input range. This is accomplished by making the input overvoltage sense threshold much larger than the input voltage start threshold. This allows the LLC to startup and enter a low power standby mode without the need to enable the PFC and enables the LLC to accommodate an extensive range of common AC inputs.

UCC256304 provides a highly efficient burst mode with consistent burst power level during each burst on cycle. The burst power level is programmable and adaptively changes with input voltage.
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類型 標題 日期
* Data sheet UCC256304 Ultra Wide VIN LLC Resonant Controller Enabling Low Standby Power datasheet PDF | HTML 2017年 10月 4日
Application note Improving Transient Response in LLC Converters Using Hybrid Hysteretic Control (Rev. B) 2021年 4月 7日
Application note Migrating to UCC25640x from UCC25630x (Rev. A) 2019年 12月 10日
Application brief Exceeding Modern Energy Standards with 'Always On' PFC and LLC Controllers​ (Rev. B) 2019年 8月 1日
Application note Improving ZVS and efficiency in LLC converters 2018年 11月 5日
EVM User's guide Using UCC25630-1EVM-291 (Rev. B) 2018年 1月 30日
Application note UCC25630x Practical Design Guidelines (Rev. A) 2017年 12月 8日
Certificate IEC60065 Certification 2017年 11月 7日
Certificate IEC60950 Certification 2017年 11月 7日
Certificate IEC62368 Certification 2017年 11月 7日
Application note AC Ripple Rejection in AC/DC Systems Using LLC 2017年 10月 31日
Selection guide UCC25630x Selection Guide 2017年 8月 29日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

UCC25630-1EVM-291 — UCC256301 LLC 評估模組

UCC25630-1EVM-291 is an EVM of LLC resonant half-bridge DC-DC power converter with LLC controller UCC256301. UCC25630-1EVM-291 accepts DC line input from 340Vdc to 410Vdc, AC input voltage from 85 VAC to 264 VAC, and outputs nominal 12Vdc with full load output power 120W, or full output current 10A.

使用指南: PDF
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模擬型號

UCC256301 SIMPLIS Model

SLUM596.ZIP (108 KB) - SIMPLIS Model
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計算工具

SLUC634 — UCC25630x Design Calculator

支援產品和硬體

支援產品和硬體

產品
AC/DC 和 DC/DC 控制器 (外部 FET)
UCC256301 — 支援超低待機功耗且具有高壓啟動功能的寬輸入電壓 LLC 全橋式控制器 UCC256302 — 支援低待機功耗且具有高壓啟動功能的 LLC 全橋式控制器 UCC256303 — 支援低待機功耗的 LLC 全橋式控制器 UCC256304 — 支援低待機功耗且具有高壓啟動功能的寬輸入電壓 LLC 全橋式控制器
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參考設計

PMP21251 — 低於 90mW 超低待機功耗無輔助 AC-DC 電源供應參考設計

The PMP21251 reference design uses UCC28056 CRM/DCM PFC controller and UCC256304 enhanced LLC controller with integrated driver to provide 12V/10.8A output (continuous, 14.4A peak) from universal AC input. This design achieves 92.4% peak efficiency at 115VAC input and 94.0% peak efficiency at (...)
Test report: PDF
電路圖: PDF
參考設計

TIDA-01494 — 24 V、480 W 額定 720 W 峰值、效率超出 93.5%、穩固 AC/DC 工業電源供應參考設計

The TIDA-01494 reference design is a compact, high efficiency, 24-V DC, 480-W nominal, 720-W peak output reference design for industrial AC/DC power supplies. The circuit consists of a front-end continuous conduction mode (CCM) power factor correction (PFC) circuit followed by a robust LLC stage (...)
Design guide: PDF
電路圖: PDF
參考設計

PMP20795 — 具有低待機功耗的 200 kHz LLC 串聯全橋式轉換器參考設計

The PMP20795 reference design uses UCC256301 enhanced LLC controller with integrated driver to provide 24V/12A output from a nominal 380VDC input. UCC256301 provides hybrid hysteresis control (HHC) to enable a fast transient response. In this design, a 1st order system with over 6kHz bandwidth is (...)
Test report: PDF
電路圖: PDF
參考設計

PMP40482 — 具有多輸出的 250-W 單級 LLC 轉換器參考設計

This is a single-stage reference design converting AC input voltage 85-115-V AC to three isolated outputs - 12 V/7.5 A, 60 V/2.5 A, 25 V/0.4 A with one non-isolated output 21 V/0.15 A using the UCC256304 resonant controller. The design is for industrial applications and the bill of materials (BOM) (...)
Test report: PDF
電路圖: PDF
參考設計

PMP30521 — 93% 全負載效率 (125mW 時為 60%)、310W 工業用 AC/DC 參考設計

This reference design is a compact and high efficient two-stage power supply. The front-end stage is a CCM power factor correction (PFC) based on UCC28180.The second stage is based on UCC256304, which drives a resonant 310 W LLC converter with two outputs, 19 V and 56 V. The board does not need (...)
Test report: PDF
電路圖: PDF
參考設計

PMP21098 — 具有 80 PLUS Gold 相容性能的 170W 無輔助 AC/DC 電源參考設計

The PMP21098 reference design uses UCC28056 transition mode PFC controller and UCC25630 enhanced LLC controller with integrated driver to provide 12V/10.8A output (continuous, 14.2A peak) from universal AC input. This design achieves 91.8% peak efficiency at 115VAC input and 93.4% peak efficiency (...)
Test report: PDF
電路圖: PDF
參考設計

PMP40281 — LLC 全橋式轉換器控制卡參考設計

This reference design is a a control card for LLC converter. It integrates all of the essential functions for controlling a LLC converter including the HV start-up, X-capacitor discharge and the drivers for the power FETs. By employing the advanced burst mode, it can also help the LLC converter to (...)
Test report: PDF
電路圖: PDF
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