OpenVINOTM,给你看得见的未来!>>
电子产品世界 » 论坛首页 » 休闲专区 » 我爱工作 » 高效同步转换器MST9229

共1条 1/1 1 跳转至

高效同步转换器MST9229

菜鸟
2020-10-19 09:43:15    评分

The MST9229 is a high efficiency synchronous boost converter with fully integrated a 13mΩ high-sideMOSFET and an 11mΩ low-side MOS FET,supporting 2.7V to 14V input voltage range and up to12-A switch current. 

(MST9229高效同步转换器集成一个13 mΩ 高电平MOS场效应管和11 mΩ 低电平MOS场效应管,支持2.7 v至14 v输入电压范围和12A开关电流)

The switch current limit can beadjustable with an external resistor.(开关电流限制可以通过外部电阻调节

The MST9229 adapts constant off-time peak currentcontrol to provide fast transient. (MST9229采用恒关断时间峰值电流控制,提供快速瞬态

An external compensation network allows flexibility setting loop dynamics to achieve optimal transient performance at different load conditions. 

外部补偿网络允许灵活地设置环路动态,以实现在不同负载条件下的最佳暂态性能。

Using MODE pin selects either Pulse Frequency Modulation (PFM) operation or forced Pulse Width Modulation (PWM) operation.

(使用MODE引脚可以选择脉冲调频(PFM)操作或强迫脉冲宽度调制(PWM)操作)

The switching frequency in PWM mode is adjustable from 200KHz to 2.2MHz by an external resistor. 

PWM模式下的开关频率可以通过外部电阻从200KHz调节到2.2MHz。

The device also features programmable soft-start time with an external capacitor.

该芯片还具有可编程软启动时间与外部电容器。

The MST9229 monitors both output voltage andfeedback voltage to protect overvoltage condition. 

该MST9229监控输出电压和反馈电压,以保护过电压条件

Itfeatures cycle-by-cycle peak current limit and thermalshutdown protection when the device over loads.

它具有逐周期的峰值电流限制和设备过载时的热关机保护功能

The device is available in a low-profile package DFN-20L 3.5mmx4.5mmx0.75mm with enhanced thermal power pad.

特点:

• Wide Input Voltage Range: 2.7V-14.0V(输入电压范围宽:2.7V-14.0V)

• Wide Output Voltage Range: 4.5V-14.6V(输出电压范围宽:4.5V-14.6V

• Fully Integrated High-side/Low-side Power MOS FET:13mΩ/11mΩ(完全集成的半导体场效应晶体管:13 mΩ/ 11 mΩ)

• Up to 12A Switch Current and ProgrammablePeak Current Limit(高达12A开关电流和可编程的峰值电流限制

• Typical Shut-down Current: 1uA(典型关断电流:1uA

• Programmable Switching Frequency:200kHz-2.2MHz(可编程开关频率:200 khz - 2.2 mhz

• Output Overvoltage Protection at 15.4V(15.4V输出过电压保护

• Feedback Overvoltage Protection at 110% ofReference Voltage(反馈过电压保护在110%的参考电压

• Selectable PFM or Forced PWM Mode(可选择PFM或强制PWM模式

• Programmable Soft Start(可编程软启动

• Thermal Shutdown Protection: 150°C(热关闭保护:150°C

• Available in DFN-20 3.5mmx4.5mm Package

应用:

• Bluetooth Audio(蓝牙音频)

• Power Banks(移动电源)

• POS System

• E-Cigarette(电子烟

• USB Power Delivery





关键词: MST9229     转换器     同步     高效    

共1条 1/1 1 跳转至

回复

匿名不能发帖!请先 [ 登陆 注册 ]