UCC25600
- Variable Switching Frequency Control
- Programmable Minimum Switching Frequency
With 4% Accuracy (3% Accuracy at Temperature
Range: –20°C to 105°C) - Programmable Maximum Switching Frequency
- Programmable Dead Time for Best Efficiency
- Programmable Soft-Start Time
- Easy ON and OFF Control
- Overcurrent Protection
- Overtemperature Protection
- Bias Voltage UVLO and Overvoltage Protection
- Integrated Gate Driver With 0.4-A Source and 0.8-
A Sink Capability - Operating Temperature Range: –40°C to 125°C
- SOIC 8-Pin Package
The UCC25600 high performance, resonant mode controller is designed for dc-to-dc applications using resonant topologies, especially the LLC half-bridge resonant converter. This highly integrated controller implements frequency modulation control and complete system functions in only an 8-pin package. Switching to the UCC25600 will greatly simplify the system design and layout, and improve time to market, all at a price point lower than competitive 16-pin device offerings.
The internal oscillator supports the switching frequencies from 40 kHz to 350 kHz. This high-accuracy oscillator realizes the minimum switching frequency limiting with 4% tolerance, allowing the designer to avoid over-design of the power stage and, thus, further reducing overall system cost. The programmable dead time enables zero-voltage switching with minimum magnetizing current. This maximizes system efficiency across a variety of applications. The programmable soft-start timer maximizes design flexibility demanded by the varied requirements of end equipment using a half-bridge topology. By incorporating a 0.4-A source and 0.8-A sink driving capability, a low cost, reliable gate driver transformer is a real option.
The UCC25600 delivers complete system protection functions including overcurrent, UVLO, bias supply OVP, and overtemperature protection.
技术文档
设计和开发
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UCC25600EVM — LLC 谐振半桥接转换器 300W 评估模块
UCC25600 评估模块 EVM (HPA341) 是一个 300W LLC 谐振半桥接转换器,凭借主次之间 AC-DC 离线应用的强化隔离,在最大负荷功率为 300W 的情况下提供额定为 12V 的稳压输出电压,它从 390V 的直流电源获取电源。该 EVM 使用了集成先进内置高效升压功能与高级保护功能的 UCC25600 谐振半桥接转换器,为 LLC 谐振半桥接转换器应用提供经济高效的解决方案。二次侧使用两个 HPA410 子卡,并使用二极管产生整流。在使用 EVM 时必须采取相应的预防措施。当 EVM 通电后,它上面将产生大于 390V 的高电压电平和高于 70 C (...)
UCC25600-DESIGN-CALC — 免费工具:采用 UCC25600 的转换器设计计算工具
封装 | 引脚数 | 下载 |
---|---|---|
SOIC (D) | 8 | 了解详情 |
订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 认证摘要
- 持续可靠性监测
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