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MIC2586-2BM 参数 Datasheet PDF下载

MIC2586-2BM图片预览
型号: MIC2586-2BM
PDF下载: 下载PDF文件 查看货源
内容描述: 单通道,正高电压热插拔控制器/定序 [Single-Channel, Positive High-Voltage Hot Swap Controller/Sequencer]
分类和应用: 电源电路电源管理电路光电二极管控制器
文件页数/大小: 17 页 / 685 K
品牌: MICREL [ MICREL SEMICONDUCTOR ]
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MIC2586/MIC2586R  
Single-Channel, Positive High-Voltage  
Hot Swap Controller/Sequencer  
General Description  
Features  
The MIC2586 and MIC2586R are single-channel positive  
voltage hot swap controllers/sequencers designed to provide  
safe insertion and removal of boards for systems that require  
live (always-powered) backplanes. These devices use few  
external components and act as controllers for external N-  
channel power MOSFET devices to provide inrush current  
control and output voltage slew rate control. Overcurrent  
fault protection is provided via programmable analog  
foldback current limit circuitry equipped with a programmable  
overcurrent filter. These protection circuits combine to limit  
the power dissipation of the external MOSFET to insure that  
the MOSFET is in its SOA during fault conditions. The  
MIC2586 provides a circuit breaker function that latches the  
output MOSFET off if the load current exceeds the current  
limit threshold for the duration of the programmable timer.  
Conversely, the MIC2586R will attempt to restart power after  
a load current fault with a low duty cycle to prevent the  
MOSFET from overheating. Each device provides either an  
active-HIGH (-1BM) or an active-LOW (-2BM) “Power-is-  
Good” signal. The MIC2586 and the MIC2586R provide up  
to three, time-sequenced "Power-is-Good" outputs that can  
be used as a control for dc-dc converter circuits or power  
modules.  
Operates from +10V to +80V with 100V ABS MAX  
operation  
Industrial temperature specifications at VCC = +24V and  
VCC = +48V  
Programmable current limit with analog foldback  
Active current regulation minimizes inrush current  
Electronic circuit breaker for overcurrent fault protection  
- Output latch off (MIC2586) or  
- Output auto-retry (MIC2586R)  
Fast responding circuit breaker (< 2µs) to short circuit  
loads  
Programmable input undervoltage lockout  
Fault Reporting:  
Three Open-drain “Power-is-Good” outputs for enabling  
DC/DC converter(s)  
- Active-HIGH: MIC2586-1/MIC2586R-1  
- Active-LOW: MIC2586-2/MIC2586R-2  
Applications  
General-purpose hot board insertion  
High-voltage, high-side electronic circuit breaker  
+12V/+24V/+48V Distributed Power Systems  
+24V/+48V Industrial/Alarm Systems  
Telecom Systems  
Data sheets and support documentation can be found on  
Micrel’s web site at www.micrel.com.  
Medical systems  
________________________________________________________________________________________________________________  
Ordering Information  
Part Number  
PWRGD Polarity Circuit Breaker Function  
Package  
Standard  
Pb-Free  
MIC2586-1BM  
MIC2586-2BM  
MIC2586-1YM  
Latched  
14 pin SOIC  
Active-HIGH  
Active-LOW  
Active- HIGH  
Active-LOW  
MIC2586-2YM  
Latched  
Auto-retry  
Auto-retry  
14 pin SOIC  
14 pin SOIC  
14 pin SOIC  
MIC2586R-1BM MIC2586R-1YM  
MIC2586R-2BM MIC2586R-2YM  
________________________________________________________________________________________________________________  
Power, Connect and Protect is a trademark of Micrel, Inc  
Micrel, Inc • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax +1 (408) 474-1000 • http://www.micrel.com  
M9999-102204  
(408) 955-1690  
October 2004  
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