2023/10/17 14:52:05
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1 Features
? Automatic Feedforward Compensation
? Programmable Pulse-by-Pulse Current Limiting
? Automatic Symmetry Correction in Push-Pull Configuration
? Enhanced Load Response Characteristics
? Parallel Operation Capability for Modular Power Systems
? Differential Current Sense Amplifier with Wide Common Mode Range
? Double-Pulse Suppression
? 500-mA (Peak) Totem-pole Outputs
? ±1% Band Gap Reference
? Undervoltage Lockout
? Soft-Start Capability
? Shutdown Terminal
? 500-kHz Operation
2 Applications
? Telecommunication Power Converters
? Industrial Power Converters
3 Description
The UC1846/7 family of control devices provides all of the necessary features to implement fixed- frequency, current-mode control schemes while maintaining a minimum external parts count. The superior performance of this technique can be measured in improved line regulation, enhanced load response characteristics, and a simpler, easier-to-design control loop. Topological advantages include inherent pulse-by-pulse current limiting capability,automatic symmetry correction for push-pullconverters, and the ability to parallel power modules while maintaining equal current sharing.
Protection circuitry includes built-in undervoltage lockout and programmable current limit, in addition to soft-start capability. A shutdown function is also available, which can initiate either a complete shutdown with automatic restart or latch the supply off.
Other features include fully-latched operation, doublepulse suppression, deadline adjust capability, and ±1% trimmed band gap reference.
The UC1846 features low outputs in the OFF state, while the UCx847 features high outputs in the OFF state.
热门型号
热门资讯
20万现货SKU
品类不断扩充
科技智能大仓储
4小时快速交货
仅从原厂和代理商进货
每一颗料均可原厂追溯
明码标价节省时间成本
一站式采购正品元器件
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