參數(shù)資料
型號： MAX5920AESA
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 電源管理
英文描述： Quadruple 2-Line To 1-Line Data Selectors/Multiplexers 16-CDIP -55 to 125
中文描述： 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封裝： 0.150 INCH, MS-012AA, SO-8
文件頁數(shù)： 1/18頁
文件大小： 310K
代理商： MAX5920AESA
General Description
The MAX5920A/MAX5920B are hot-swap controllers that
allow a circuit card to be safely hot plugged into a live
backplane. The MAX5920A/MAX5920B operate from
-20V to -80V and are well-suited for -48V power systems.
These devices are pin and function compatible with the
LT4250 and pin compatible with the LT1640.
The MAX5920A/MAX5920B provide a controlled turn-on
to circuit cards preventing glitches on the power-supply
rail and damage to board connectors and components.
The MAX5920A/MAX5920B 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 MAX5920A and MAX5920B protect a system
against overcurrent and short-circuit conditions by turn-
ing off the external MOSFET in the event of a fault con-
dition. The MAX5920A/MAX5920B also provide
protection against input voltage steps. During an input
voltage step, the MAX5920A/MAX5920B limit the cur-
rent drawn by the load to a safe level without turning off
power to the load.
Both devices feature an open-drain power-good status
output (
PWRGD
for the MAX5920A or PWRGD for the
MAX5920B) that can be used to enable downstream
converters. A built-in thermal-shutdown feature is also
included to protect the external MOSFET in case of
overheating.
The MAX5920A/MAX5920B are available in an 8-pin SO
package. Both devices are specified for the extended
-40°C to +85°C temperature range.
Applications
Telecom Line Cards
Network Switches/Routers
Central-Office Line Cards
Server Line Cards
Base-Station Line Cards
Features
o
Allows Safe Board Insertion and Removal
from a Live -48V Backplane
o
Pin- and Function-Compatible with LT4250L
(MAX5920A)
o
Pin-Compatible with LT1640L (MAX5920A)
o
Pin- and Function-Compatible with LT4250H
(MAX5920B)
o
Pin-Compatible with LT1640H (MAX5920B)
o
Circuit-Breaker Immunity to Input Voltage Steps
and Current Spikes
o
Withstands -100V Input Transients with No
External Components
o
Programmable Inrush and Short-Circuit Current
Limits
o
Operates from -20V to -80V
o
Programmable Overvoltage Protection
o
Programmable Undervoltage Lockout
o
Powers Up into a Shorted Load
o
Power-Good Control Output
o
Thermal Shutdown Protects External MOSFET
M
-48V Hot-Swap Controller
with External R
SENSE
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
GATE
SENSE
V
EE
1
2
8
7
V
DD
DRAIN
OV
UV
PWRGD
(PWRGD)
SO
TOP VIEW
3
4
6
5
MAX5920A
MAX5920B
( ) FOR MAX5920B.
Pin Configuration
Ordering Information
19-2931; Rev 0; 8/03
PART
TEMP RANGE
-40
°
C to +85
°
C
-40
°
C to +85
°
C
PIN-PACKAGE
8 SO
8 SO
MAX5920AESA
MAX5920BESA
Typical Operating Circuit and Selector Guide appear at end
of data sheet.
相關(guān)PDF資料
PDF描述
MAX5920BESA Quadruple 2-Line To 1-Line Data Selectors/Multiplexers 16-CFP -55 to 125
MAX5945 Quad Network Power Controller for Power-Over-LAN
MAX5945CAX Quad Network Power Controller for Power-Over-LAN
MAX5945EAX Quad Network Power Controller for Power-Over-LAN
MAX5948 AND-OR-invert Gates 14-CFP -55 to 125
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX5920AESA+ 功能描述:熱插拔功率分布 48V- Hot-Swap Controller RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
MAX5920AESA+T 功能描述:熱插拔功率分布 48V- Hot-Swap Controller RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
MAX5920AESA-T 功能描述:熱插拔功率分布 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
MAX5920BESA 功能描述:熱插拔功率分布 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
MAX5920BESA+ 功能描述:熱插拔功率分布 48V- Hot-Swap Controller RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
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