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MAX5933A, MAX5933B, MAX5933C, MAX5933D, MAX5933E, MAX5933F, MAX5947A, MAX5947B, MAX5947C
正电源、高压、热插拔控制器
概述
完整的数据资料
(PDF, 280kB)
英文
下载
MAX5933A-MAX5933F/MAX5947A/B/C是用于+9V至+80V正电源的全集成热插拔控制器(MAX5947A/B/C),允许电路板卡安全的从运行中的背板上插拔而不会在背板电源上产生脉冲干扰。MAX5947B的引脚和功能兼容LT1641-2。其他器件提供额外的功能选择,如高电平有效或低电平有效电源就绪输出(PWRGD//PWRGD),锁定/自动重试故障管理,自动重试的占空比可以选择3.75%或者0.94% (请参考完整数据资料中的Selector Guide )。
MAX5933A-MAX5933F提供+31V默认欠压锁定门限,工作电压范围为+33V至+80V。MAX5947A/B/C提供+8.3V默认欠压锁定门限。所有器件都具有可编程设置的模拟折返式限流。如果器件保持在限流状态的时间超过可编程设定的时间,外部n沟道MOSFET将会闭锁(MAX5933A/MAX5933C/MAX5947A),或者在超时延时后自动重启(MAX5933B/MAX5933D/MAX5933E/MAX5933F/MAX5947B/MAX5947C)。
MAX5933_和MAX5947_工作在-40°C至+85°C扩展级温度范围内。这些器件提供8引脚SO封装。
关键特性
应用/使用
引脚和功能兼容LT1641-2 (MAX5947B)
为+9V至+80V电源范围提供安全热插拔(MAX594A/B/C)
板卡能够从运行中的背板上安全插拔
闭锁/自动重试故障管理
低电平有效或高电平有效电源就绪输出
可编程设置的折返式限流
高边驱动外部N沟道MOSFET
内部过热关断
欠压锁定(UVLO)
过压保护
用户可编程电源电压上电速率
Key Specifications:
Hot Swap Controllers
Part Number
Min. VIN (V)
Max. VIN (V)
Low Voltage
High Voltage
Voltage Polarity
Type
Fault Condition Control
Number of Channels
Features
RoHS Available
Package
Smallest Available Package (max w/pins) (mm2 )
Operating Temp. Range (°C)
Price**
MAX5933
33
80
No
Yes
Positive
Positive, High-Voltage
Latched Off
Periodic retry
1
70mA Gate Pulldown Current During Any Fault Condition
Auto-retry fault management
In-Rush Current and Short Circuit Protection
Output Undervoltage Monitor
Power-Good output (active-high)
Power-Good output (active-low)
Powers up into shorted load
Programmable Start-Up, Overcurrent, and Load-Disconnect Timeouts
Yes
SOIC/8
31
-40 to +85
$1.49 @ 1k
MAX5947
9
$1.49 @ 1k
See All Hot Swap Controllers (44)
Notes:
** This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
参考文献: 19-3263;
Rev. 1;
2004-07-27
本页最后一次更新: 2007-09-05
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