計算工具
產品規格表
UCC28634
- High-Power, Primary-Side CV/CC Regulation
- Continuous Conduction Mode (CCM) and Discontinuous Conduction Mode (DCM) Operation
- Built-In 700-V Start-Up Current Source
- Active X-Capacitor Discharge (UCC28630 and UCC28633)
- Adjustable Constant-Current (CC) Mode Limiting (except for UCC28630)
- High Gate Drive Current 1-A Source and 2-A Sink
- Low Power Modes for <30-mW System Standby
- Best-In-Class Light Load (10%) Efficiency >85%
- PSR design with no opto-coupler - can meet high CM isolation & surge requirements
- VDD OVP for independent indirect output OV under open-feedback fault conditions
- Peak-Power Mode for Transient Overload
- Shutdown Pin Interface for External NTC
- Protections: Overvoltage, Overcurrent, Over-Temperature, Overload Timer (UCC28630), AC Line UV, Brownout and Pin Protections
- Frequency Dither to Ease EMI Compliance (except the UCC28632)
- Create a Custom Design Using the UCC2863x With the WEBENCH® Power Designer
The UCC2863x targets high-power, primary-side regulated flyback converters. The ability to operate in both CCM and DCM make the device suitable for applications with a wide power range. The peak power mode allows transient peak power delivery up to 200% of nominal rating, with only a 25% peak current increase, maximizing transformer utilization.
The transformer bias winding is used to sense output voltage for regulation, and for low-loss input voltage sensing. Advanced sampling techniques allow CCM operation, and deliver excellent output voltage regulation performance for opto-coupler-less designs at power levels of 100 W and above.
A high-voltage current source enables fast and efficient start-up. Advanced light-load modes are deployed to reduce both controller and system power consumption at no load and light load. These modes enable potential system designs to meet 30-mW no-load power for power designs up to 30 W nominal, 60 W peak.
The device has been designed for ease-of-use and incorporates many features to enable a wide range of designs. Extensive protection features are included to simplify system design.
See the Device Comparison Table for details.
技術文件
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檢視所有 1 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | UCC2863x, High-Power Flyback Controller with Primary-Side Regulation and Peak-Power Mode datasheet (Rev. D) | PDF | HTML | 2017年 12月 15日 |
設計與開發
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開發板
UCC28630EVM-572 — UCC28630 評估模組
The Texas Instruments UCC28630EVM-572 evaluation module (EVM) is a 65W primary side regulated (PSR) flyback converter for offline applications, with 130W transient surge capability. It is intended for evaluation purposes and is not intended to be an end product.
使用指南: PDF
計算工具
SLUC538 — UCC28630 MathCad Design Calculator
| 封裝 | 引腳 | 下載 |
|---|---|---|
| SOIC (D) | 7 | 檢視選項 |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點