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参数资料
型号： MAX5948BESA+T
厂商： Maxim Integrated
文件页数： 1/18页
文件大小： 182K
描述： IC CNTRLR HOT SWAP 8-SOIC
产品培训模块： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装： 2,500
类型： 热交换控制器
应用： 通用
内部开关： 无
电源电压： -20 V ~ -80 V
工作温度： -40°C ~ 85°C
安装类型： 表面贴装
封装/外壳： 8-SOIC（0.154"，3.90mm 宽）
供应商设备封装： 8-SOIC
包装： 带卷 (TR)
General Description
The MAX5948A/MAX5948B are hot-swap controllers
that allow a circuit card to be safely hot plugged into a
live backplane. The MAX5948A/MAX5948B operate
from -20V to -80V and are well-suited for -48V power
systems. The MAX5948A is pin- and function-compati-
ble with both the LT1640AL and LT1640L. The
MAX5948B is pin- and function-compatible with both
the LT1640AH and LT1640H.
The MAX5948A/MAX5948B provide a controlled turn-on
to circuit cards preventing glitches on the power-supply
rail and damage to board connectors and components.
The MAX5948A/MAX5948B provide undervoltage, over-
voltage, and overcurrent protection. These devices
ensure the input voltage is stable and within tolerance
before applying power to the load.
Both the MAX5948A and MAX5948B protect a system
against overcurrent and short-circuit conditions by turning
off the external MOSFET in the event of a fault condition.
Both devices feature an open-drain power-good status
output, PWRGD  for MAX5948A or PWRGD for
MAX5948B, that can be used to enable downstream
converters.
The MAX5948A/MAX5948B are available in an 8-pin SO
package. Both devices are specified for the extended
-40癈 to +85癈 temperature range.
Applications
Central-Office Switching
Network Switches/Routers
Server Line Cards
Base-Station Line Cards
Features
o Allow Safe Board Insertion and Removal from a
Live -48V Backplane
o Pin- and Function-Compatible with
LT1640AL/LT1640L (MAX5948A)
o Pin- and Function-Compatible with
LT1640AH/LT1640H (MAX5948B)
o Withstand -100V Input Transients with No
External Components
o Operate from -20V to -80V
o Programmable Inrush and Short-Circuit Current
Limits
o Programmable Overvoltage Protection
o Programmable Undervoltage Lockout
o Power Up into a Shorted Load
o Power-Good Control Output
-48V Hot-Swap Controllers
with External R
SENSE
________________________________________________________________ Maxim Integrated Products   1
GATE
SENSE
V
EE
1
2
8
7
V
DD
DRAIN
OV
UV
PWRGD
(PWRGD)
SO
TOP VIEW
3
4
6
5
MAX5948A
MAX5948B
( ) FOR MAX5948B.
Pin Configuration
19-3473; Rev 1; 8/11
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxims website at www.maxim-ic.com.
Typical Operating Circuit appears at end of data sheet.
Selector Guide
PART
PWRGD POLARITY
MAX5948AESA
Active Low (PWRGD)
MAX5948BESA
Active High (PWRGD)
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX5948AESA+
-40癈 to +85癈
8 SO
MAX5948BESA+
-40癈 to +85癈
8 SO
+Denotes a lead(Pb)-free/RoHS-compliant package.
相关PDF资料
PDF描述
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相关代理商/技术参数
参数描述
MAX5949AESA 功能描述:热插拔功率分布 RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube
MAX5949AESA+ 功能描述:热插拔功率分布 48V- Hot-Swap Controller RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube
MAX5949AESA+T 功能描述:热插拔功率分布 48V- Hot-Swap Controller RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube
MAX5949AESA+TG126 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX5949AESA-T 功能描述:热插拔功率分布 RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube
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