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MIC2529-2BM PDF预览

MIC2529-2BM

更新时间： 2024-09-19 22:17:15
品牌 Logo 应用领域
麦瑞 - MICREL 控制器
页数 文件大小 规格书
11页 140K
描述
Single-Channel USB Power Controller Advance Information

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中文翻译

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MIC2529-2BM 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：SOIC包装说明：SOP,
针数：8Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.88可调阈值：NO
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：R-PDSO-G8
JESD-609代码：e0长度：4.9 mm
湿度敏感等级：1信道数量：1
功能数量：1端子数量：8
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：240认证状态：Not Qualified
座面最大高度：1.879 mm最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：3 V标称供电电压 (Vsup)：5 V
表面贴装：YES温度等级：INDUSTRIAL
端子面层：Tin/Lead (Sn/Pb)端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
处于峰值回流温度下的最长时间：30宽度：3.9 mm
Base Number Matches：1

MIC2529-2BM 数据手册

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MIC2529  
Single-Channel USB Power Controller  
Advance Information  
General Description  
Features  
The MIC2529 is a high-side power switch optimized for self-  
powered(individualportswitching)andbus-powered(ganged  
port switching) Universal Serial Bus (USB) hub applications.  
An on-board voltage regulator provides the 3.3V supply  
voltage needed for many USB microcontrollers reducing  
board component count.  
• Compliant to USB specifications  
• UL Recognized Component  
• On-board 3.3V, 100mA low-dropout regulator  
• 500mA minimum continuous switch load current  
• 160mΩ maximum on-resistance  
• 750mA typical current limit  
• Open-drain fault flag pin for switch  
• Output can be forced higher than input (off-state)  
• Thermal shutdown  
• 1ms turn-on (soft-start) and fast turnoff  
• Available with active-high or active-low switch enable  
• Active-high enable on 3.3V regulated output  
• 8-pin SOIC package  
The MIC2529 satisfies the following USB requirements: it  
supplies up to 500mA as required by USB downstream  
devices; the switch’s low on-resistance meets USB voltage  
drop requirements; fault current is limited to typically 750mA,  
well below the UL 25VA safety requirement; and a flag output  
is available to indicate fault conditions to the local USB  
controller. Soft start eliminates the momentary voltage drop  
on the upstream port that may occur when the switch is  
enabled in bus-powered applications.  
Applications  
• USB self-powered hubs  
• USB bus-powered hubs  
• USB keyboard hubs  
A low-dropout (LDO) regulator provides 3.3V at loads up to  
100mA and includes an enable pin for low current shutdown.  
Both enable inputs are compatible with 3.3V and 5V logic.  
Thermal shutdown prevents catastrophic failure from high-  
current loads.  
The MIC2529 is available in an 8-pin SOIC package with  
active-high or active-low enable circuitry on switch.  
Typical Applications  
Ferrite  
Bead  
Upstream VBUS  
4.40V to 5.25V  
D+  
VBUS  
D–  
4.7 0.1  
µF µF  
Downstream  
D+  
D–  
33µF†  
33µF†  
33µF†  
33µF†  
GND  
USB  
Port 1  
3.3V USB Controller  
MIC2529  
0.01µF  
0.01µF  
0.01µF  
0.01µF  
8
1
6
5
3
2
7
4
V+  
OVERCURRENT  
D–  
D+  
ON/OFF  
EN  
IN  
OUT  
OUT  
100mA max.  
GND  
10k  
FLG  
3VEN  
0.1µF  
VBUS  
D+  
GND 3VOUT  
GND  
Downstream  
USB  
Port 2  
100mA max.  
10k  
1.5k*  
5%  
D–  
GND  
1µF  
Bold lines indicate  
0.1" wide, 1-oz. copper  
high-current traces.  
VBUS  
D+  
Downstream  
USB  
Port 3  
100mA max.  
D–  
GND  
* Speed sense termination resistor. Must be connected  
between V3VOUT and D+ to indicate high speed operation.  
VBUS  
D+  
Downstream  
USB  
Port 4  
†
33µF tantalum or 100µF electrolytics are recommended.  
D–  
100mA max.  
GND  
4-Port Ganged Bus-Powered Hub  
UL Recognized Component  
June 1999  
1
MIC2529  
1234567...11

中文翻译

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