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MAX5961_09

更新时间： 2024-10-15 11:16:23
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美信 - MAXIM 控制器
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2页 112K
描述
0 to 16V, Quad, Hot-Swap Controller with 10-Bit Current and Voltage Monitor

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中文翻译

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MAX5961_09 数据手册

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QuickView - MAX5961 0 to 16V, Quad, Hot-Swap Controller with 10-Bit Current and Voltage Monitor  
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Maxim > Products > [Hot-Swap and Power Switching]  
MAX5961  
0 to 16V, Quad, Hot-Swap Controller with 10-Bit Current and Voltage Monitor  
Industry's First Quad, Hot-Swap Controller Operates Down to 0V and Integrates a Voltage  
and Current Monitor  
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Status  
Technical Documents  
Ordering Info  
More Information  
User Comments (0)  
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Active: In Production.  
Description  
The MAX5961 0 to 16V, quad, hot-swap controller provides complete protection for systems with  
up to four distinct supply voltages. The device allows the safe insertion and removal of circuit  
cards into live backplanes. The MAX5961 is an advanced hot-swap controller that monitors  
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voltage and current with an internal 10-bit ADC. The device provides two levels of overcurrent circuit-breaker protection; a fast-  
trip threshold for a fast turn-off, and a lower slow-trip threshold for a delayed turn-off. The maximum overcurrent circuit-  
breaker threshold range is set independently for each channel with a trilevel input (ILIM_) or by programming though an I²C  
interface.  
The internal 10-bit ADC is multiplexed to monitor the output voltage and current of each hot-swap channel. The total time to  
cycle through all the eight measurements is 100µs (typ). Each 10-bit value is stored in an internal circular buffer so that 50 past  
samples of each signal can be read back through the I²C interface at any time or after a fault condition.  
The MAX5961 can be configured as four independent hot-swap controllers, hot-swap controllers operating in pairs, or as a group  
of four hot-swap controllers.  
The device also includes five digital comparators per hot-swap channel to implement overcurrent warning, two levels of  
overvoltage detection, and two levels of undervoltage detection. The limits for overcurrent, overvoltage, and undervoltage are  
user-programmable. When any of the measured values violates the programmable limits, an external active-low ALERT signal is  
asserted. In addition to the active-low ALERT signal, depending on the selected operating mode, the MAX5961 can deassert a  
power-good signal and/or turn-off the external MOSFET.  
The MAX5961 is available in a 48-pin thin QFN package and operates over the -40°C to +85°C extended temperature range.  
An evaluation kit is available: MAX5961EVKIT  
Key Features  
z Four Independent Hot-Swap Controllers Protect from 0 to 16V (Provided  
Applications/Uses  
z ASICs  
IN ≥ 2.7V)  
z Disk Drives  
z 10-Bit ADC Monitors Voltage and Current of Each Channel  
z Circular Buffer Stores 5ms of Current and Voltage Measurements  
z Four Independent Internal Charge Pumps Generate n-Channel MOSFET  
Gate Drives  
z PCI Express® Hot Plug  
z Servers  
z Storage Systems  
z Internal 500mA Gate Pulldown Current for Fast Shutdown  
z VariableSpeed/BiLevel™ Circuit-Breaker Protection  
z Alert Output Indicates Undervoltage Warning, Undervoltage Critical,  
Overvoltage Warning, Overvoltage Critical, and Overcurrent Warning for  
Each Channel  
z Independent Power-Good Outputs  
z Autoretry or Latched Fault Management  
z 400kHz I²C Interface  
z 7mm x 7mm 48-Pin TQFN Package  
Key Specifications: Hot Swap Controllers  
V
V
IN  
IN  
Price  
Part  
Number  
Low  
Volt.  
High  
Volt.  
Voltage  
Polarity  
(V) (V)  
Type  
Fault Condition Control  
Channels Package/Pins  
See  
http://www.maxim-ic.com/quick_view2.cfm/qv_pk/5853  
11/9/2009  
12

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