參數(shù)資料
型號(hào)： MAX5948AESA
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 電源管理
英文描述： -48V Hot-Swap Controllers with External RSENSE
中文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封裝： 0.150 INCH, MS-012AA, SOIC-8
文件頁(yè)數(shù)： 1/18頁(yè)
文件大小： 685K
代理商： MAX5948AESA
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°C to +85°C temperature range.
Applications
Central-Office Switching
Network Switches/Routers
Server Line Cards
Base-Station Line Cards
Features
Allow Safe Board Insertion and Removal from a
Live -48V Backplane
Pin- and Function-Compatible with
LT1640AL/LT1640L (MAX5948A)
Pin- and Function-Compatible with
LT1640AH/LT1640H (MAX5948B)
Withstand -100V Input Transients with No
External Components
Operate from -20V to -80V
Programmable Inrush and Short-Circuit Current
Limits
Programmable Overvoltage Protection
Programmable Undervoltage Lockout
Power Up into a Shorted Load
Power-Good Control Output
M
-48V Hot-Swap Controllers
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
MAX5948A
MAX5948B
( ) FOR MAX5948B.
Pin Configuration
Ordering Information
19-3473; Rev 0; 10/04
PART
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 SO
8 SO
MAX5948AESA
MAX5948BESA
Typical Operating Circuit appears at end of data sheet.
Selector Guide
PART
PWRGD POLARITY
Active Low (
PWRGD
)
Active High (PWRGD)
MAX5948AESA
MAX5948BESA
相關(guān)PDF資料
PDF描述
MAX5948B 4-2-3-2 Input AND-OR-invert Gates 14-CDIP -55 to 125
MAX5948BESA -48V Hot-Swap Controllers with External RSENSE
MAX5949 -48V Hot-Swap Controllers with External RSENSE
MAX5949AESA -48V Hot-Swap Controllers with External RSENSE
MAX5949BESA Dual D-type Positive-Edge-Triggered Flip-Flops With Preset And C 14-CDIP -55 to 125
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX5948AESA+ 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
MAX5948AESA+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
MAX5948AESA-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
MAX5948BESA 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
MAX5948BESA+ 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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