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MIC2342R-2YTQ-TR PDF预览

MIC2342R-2YTQ-TR

更新时间： 2024-09-20 19:45:55
品牌 Logo 应用领域
美国微芯 - MICROCHIP PC
页数 文件大小 规格书
32页 1204K
描述
IC HOT PLUG CTLR DUAL PCI 48TQFP

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中文翻译

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MIC2342R-2YTQ-TR 技术参数

是否无铅： 不含铅生命周期：Active
包装说明：TFQFP,Reach Compliance Code：compliant
风险等级：5.24其他特性：IT ALSO OPERATE ON 12V SUPPLY
可调阈值：YES模拟集成电路 - 其他类型：POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 代码：S-PQFP-G48长度：7 mm
信道数量：3功能数量：2
端子数量：48最高工作温度：70 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：TFQFP封装形状：SQUARE
封装形式：FLATPACK, THIN PROFILE, FINE PITCH座面最大高度：1.2 mm
最大供电电压 (Vsup)：3.6 V最小供电电压 (Vsup)：3 V
标称供电电压 (Vsup)：3.3 V表面贴装：YES
温度等级：COMMERCIAL端子形式：GULL WING
端子节距：0.5 mm端子位置：QUAD
宽度：7 mmBase Number Matches：1

MIC2342R-2YTQ-TR 数据手册

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MIC2342/2342R  
Dual-Slot PCI Express® Hot-Plug  
Controller  
General Description  
Features  
The MIC2342 is a dual-slot power controller supporting the  
power distribution requirements for Peripheral Component  
Interconnect Express (PCI Express®) Hot-Plug compliant  
systems. The MIC2342 provides complete power control  
support for two PCI Express slots, including the 3.3VAUX  
defined by the PCI Express standards. Support for the  
12V, 3.3V, and 3.3VAUX supplies includes programmable  
gate voltage slew-rate control, voltage supervision,  
programmable current limit, and circuit breaker functions.  
These features provide comprehensive system protection  
and fault isolation. Additionally, in the event of an  
overcurrent fault on 3.3VAUX that “trips” the circuit breaker  
to cause the 3.3VAUX output to shut down, the MAIN  
outputs (3.3V and 12V) for the affected 3.3VAUX slot, A or  
B, will also be shut down. The MIC2341 controller  
provides truly independent output operation for MAIN and  
AUX.  
• Supports two independent PCI Express slots  
• MAIN & AUX outputs are inter-dependent during AUX  
overcurrent conditions  
• 12V, 3.3V, and 3.3VAUX supplies supported per PCI  
Express Specification v1.0a, v.2.0  
• Integrated Power MOSFETS for 3.3VAUX rails  
• Standby Operation for Wake-on-LAN applications with  
low backfeed on Main +12V and +3.3V rails  
• Electronic circuit breakers for each supply per slot  
- Programmable gate voltage slew-rate control  
- Active current regulation controls inrush current  
• High accuracy Primary and Secondary Circuit Breaker  
Current-limit Thresholds  
• Dual-level, dual-speed fault detection for fast response  
without nuisance tripping  
Data sheets and support documentation can be found on  
Micrel’s web site at: www.micrel.com.  
• User-programmable Primary Overcurrent Detector  
• /PWRGD and Delayed /PWRGD (164 ms) Signal  
Outputs per slot  
• Separate /FAULT output signals for MAIN and AUX  
rails for each slot  
• Global Systems Power-is-Good Output  
• Both slots thermally isolated  
• Internally Debounced Plug-in Card Retention Switch  
Inputs per slot.  
Applications  
• PCI Express v1.0a, v2.0 hot-plug power control  
M9999-062008-A  
June 2008  
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