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1、Intersil ISL78215 PWM 电流模式电源控制方案关键词：电源管理,DC/DC 转换器,PWM Intersil 公司的 ISL78215 是可调频率低功耗 PWM 电流模式电源控制器，具有 1A MOSFET 栅极驱动器，起动电流 60uA，最大为 100uA，可调开关频率达 2MHz，1nF 负载时的上升和下降时间为 20ns，主要用在汽车电源，通信和数 据通信电源，无线基站电源，服务器电源，工业电源系统，PC 电源，升压稳 压器和绝缘降压和反激稳压器。本文介绍了 ISL78215 主要特性，功能方框图 和典型应用电路。The ISL78215 family of adjus
2、table frequency, low power, pulse width modulating (PWM) current mode controllers is designed for a wide range of power conversion applications including boost, flyback, and isolated output configurations. Peak current mode control effectively handles power transients and provides inherent overcurre
3、nt protection.This advanced BiCMOS design is pin compatible with the industry standard 384x family of controllers and offers significantly improved performance. Features include low operating current, 60A start-up current, adjustable operating frequency to 2MHz, and high peak current drive capabilit
4、y with 20ns rise and fall times.The ISL78215 is fully TS16949 compliant and tested to AEC-Q100 specifications.ISL78215 主要特性： 1A MOSFET Gate Driver 60A Start-up Current, 100A Maximum 25ns Propagation Delay Current Sense to Output Fast Transient Response with Peak Current Mode Control Adjustable Switc
5、hing Frequency to 2MHz 20ns Rise and Fall Times with 1nF Output Load Trimmed Timing Capacitor Discharge Current for Accurate Deadtime/Maximum Duty Cycle Control High Bandwidth Error Amplifier Tight Tolerance Voltage Reference Over Line, Load, and Temperature Tight Tolerance Current Limit Threshold P
6、b-Free (RoHS Compliant) TS16949 Compliant AEC-Q100 TestedISL78215 应用： Automotive Power Telecom and Datacom Power Wireless Base Station Power File Server Power Industrial Power Systems PC Power Supplies Isolated Buck and Flyback Regulators Boost Regulators图 1。ISL78215 功能方框图AO-Electronics 傲壹电子 官网： 中文网：图 2。ISL78215 应用：48V 输入双输出反激 图 3。ISL78215 应用：升压转换器
