原标题：Intersil ISL78215 PWM电流模式电源控制方案

　　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 adjustable 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 overcurrent 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, 60μA start-up current, adjustable operating frequency to 2MHz, and high peak current drive capability 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

　　• 60μA Start-up Current, 100μA Maximum

　　• 25ns Propagation Delay Current Sense to Output

　　• Fast Transient Response with Peak Current Mode Control

　　• Adjustable Switching 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

　　• Pb-Free (RoHS Compliant)

　　• TS16949 Compliant

　　• AEC-Q100 Tested

　　ISL78215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

　　图2。ISL78215应用：48V输入双输出反激

　　图3。ISL78215应用：升压转换器