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AP21X1FMG-7 PDF预览

AP21X1FMG-7

更新时间： 2024-01-01 06:41:12
品牌 Logo 应用领域
美台 - DIODES 开关电源开关
页数 文件大小 规格书
17页 481K
描述
0.5A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH

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中文翻译

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AP21X1FMG-7 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：DFN
包装说明：GREEN, DFN-6针数：6
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.65
内置保护：TRANSIENT; OVER CURRENT; THERMAL接口集成电路类型：BUFFER OR INVERTER BASED PERIPHERAL DRIVER
JESD-30 代码：R-PDSO-G6JESD-609代码：e3
长度：2.0125 mm功能数量：1
端子数量：6最高工作温度：85 °C
最低工作温度：-40 °C输出电流流向：SINK
标称输出峰值电流：1.5 A封装主体材料：PLASTIC/EPOXY
封装代码：HVSSOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：0.605 mm
最大供电电压：5.5 V最小供电电压：2.7 V
标称供电电压：5 V表面贴装：YES
温度等级：INDUSTRIAL端子面层：MATTE TIN
端子形式：GULL WING端子节距：0.5 mm
端子位置：DUAL处于峰值回流温度下的最长时间：40
断开时间：10 µs接通时间：50 µs
宽度：1.81 mmBase Number Matches：1

AP21X1FMG-7 数据手册

 浏览型号AP21X1FMG-7的Datasheet PDF文件第8页浏览型号AP21X1FMG-7的Datasheet PDF文件第9页浏览型号AP21X1FMG-7的Datasheet PDF文件第10页浏览型号AP21X1FMG-7的Datasheet PDF文件第12页浏览型号AP21X1FMG-7的Datasheet PDF文件第13页浏览型号AP21X1FMG-7的Datasheet PDF文件第14页 
AP2141/ AP2151  
Application Information (cont.)  
Thermal Protection  
Thermal protection prevents the IC from damage when heavy-overload or short-circuit faults are present for extended periods of time. The  
AP2141/AP2151 implements a thermal sensing to monitor the operating junction temperature of the power distribution switch. Once the die  
temperature rises to approximately 140°C due to excessive power dissipation in an over-current or short-circuit condition the internal thermal sense  
circuitry turns the power switch off, thus preventing the power switch from damage. Hysteresis is built into the thermal sense circuit allowing the  
device to cool down approximately 25°C before the switch turns back on. The switch continues to cycle in this manner until the load fault or input  
power is removed. The FLG open-drain output is asserted when an over-temperature shutdown or over-current occurs with 7-ms deglitch.  
Under-Voltage Lockout (UVLO)  
Under-voltage lockout function (UVLO) keeps the internal power switch from being turned on until the power supply has reached at least 1.9V, even  
if the switch is enabled. Whenever the input voltage falls below approximately 1.9V, the power switch is quickly turned off. This facilitates the design  
of hot-insertion systems where it is not possible to turn off the power switch before input power is removed.  
Host/Self-Powered HUBs  
Hosts and self-powered hubs (SPH) have a local power supply that powers the embedded functions and the downstream ports (see Figure 2). This  
power supply must provide from 5.25V to 4.75V to the board side of the downstream connection under both full-load and no-load conditions. Hosts  
and SPHs are required to have current-limit protection and must report over-current conditions to the USB controller. Typical SPHs are desktop  
PCs, monitors, printers, and stand-alone hubs.  
Figure 2. Typical One-Port USB Host / Self-Powered Hub  
Generic Hot-Plug Applications  
In many applications it may be necessary to remove modules or pc boards while the main unit is still operating. These are considered hot-plug  
applications. Such implementations require the control of current surges seen by the main power supply and the card being inserted. The most  
effective way to control these surges is to limit and slowly ramp the current and voltage being applied to the card, similar to the way in which a  
power supply normally turns on. Due to the controlled rise times and fall times of the AP2141/AP2151, these devices can be used to provide a  
softer start-up to devices being hot-plugged into a powered system. The UVLO feature of the AP2141/AP2151 also ensures that the switch is off  
after the card has been removed, and that the switch is off during the next insertion.  
By placing the AP2141/AP2151 between the VCC input and the rest of the circuitry, the input power reaches these devices first after insertion. The  
typical rise time of the switch is approximately 1ms, providing a slow voltage ramp at the output of the device. This implementation controls system  
surge current and provides a hot-plugging mechanism for any device.  
11 of 17  
www.diodes.com  
March 2013  
© Diodes Incorporated  
AP2141/ AP2151  
Document number: DS31562 Rev. 7 - 2  
1...891011121314...17

中文翻译

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