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MAX5924_10 PDF预览

MAX5924_10

更新时间: 2024-01-26 10:56:47
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美信 - MAXIM 控制器
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21页 334K
描述
1V to 13.2V, n-Channel Hot-Swap Controllers Require No Sense Resistor

MAX5924_10 数据手册

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19-3443; Rev 3; 4/10  
1V to 13.2V, n-Channel Hot-Swap Controllers  
Require No Sense Resistor  
4/MAX5926  
General Description  
Features  
o Hot Swap 1V to 13.2V with V  
≥ 2.25V  
The MAX5924/MAX5925/MAX5926 1V to 13.2V hot-swap  
controllers allow the safe insertion and removal of circuit  
cards into live backplanes. These devices hot swap sup-  
plies ranging from 1V to 13.2V provided that the device  
CC  
o Drive High-Side n-Channel MOSFET  
o Operation With or Without R  
SENSE  
DS(ON)  
o Temperature-Compensated R  
Sensing  
supply voltage, V , is at or above 2.25V and the hot-  
CC  
S
o Protected During Turn-On into Shorted Load  
o Adjustable Circuit-Breaker Threshold  
o Programmable Slew-Rate Control  
swapped supply, V , does not exceed V  
.
CC  
The MAX5924/MAX5925/MAX5926 hot-swap controllers  
limit the inrush current to the load and provide a circuit-  
breaker function for overcurrent protection. The devices  
operate with or without a sense resistor. When operat-  
ing without a sense resistor, load-probing circuitry  
ensures a short circuit is not present during startup,  
then gradually turns on the external MOSFET. After the  
load probing is complete, on-chip comparators provide  
overcurrent protection by monitoring the voltage drop  
across the external MOSFET on-resistance. In the event  
of a fault condition, the load is disconnected.  
o Programmable Turn-On Voltage  
o Autoretry or Latched Fault Management  
®
o 10-Pin µMAX or 16-Pin QSOP Packages  
Ordering Information  
PART  
TEMP RANGE  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
10 µMAX  
MAX5924AEUB  
MAX5924BEUB  
MAX5924CEUB*  
MAX5924DEUB*  
MAX5925AEUB  
MAX5925BEUB*  
MAX5925CEUB*  
MAX5925DEUB*  
MAX5926EEE  
The MAX5924/MAX5925/MAX5926 include many inte-  
grated features that reduce component count and  
design time, including configurable turn-on voltage,  
slew rate, and circuit-breaker threshold. An on-board  
charge pump provides the gate drive for a low-cost,  
external n-channel MOSFET.  
10 µMAX  
10 µMAX  
10 µMAX  
10 µMAX  
10 µMAX  
The MAX5924/MAX5925/MAX5926 are available with  
open-drain PGOOD and/or PGOOD outputs. The  
MAX5925/MAX5926 also feature a circuit breaker with  
10 µMAX  
10 µMAX  
16 QSOP–EP**  
temperature-compensated R  
sensing. The  
DS(ON)  
*Future product—contact factory for availability.  
**EP = Exposed pad.  
MAX5926 features a selectable 0ppm/°C or 3300ppm/°C  
temperature coefficient. The MAX5924 temperature coef-  
ficient is 0ppm/°C and the MAX5925 temperature coeffi-  
cient is 3300ppm/°C. Autoretry and latched fault-  
management configurations are available (see the  
Selector Guide).  
Typical Operating Circuits  
TYPICAL OPERATION WITHOUT R  
SENSE  
BACKPLANE  
REMOVABLE CARD  
N
Applications  
V
1V TO V  
CC  
OUT  
Base Stations  
V
S
2.25V TO 13.2V  
V
RAID  
CC  
R
CB  
R
SC  
Remote-Access Servers  
Network Routers and Switches  
Servers  
OUT  
CB  
GATE SENSE  
SC_DET  
V
CC  
Portable Device Bays  
MAX5925  
MAX5926  
GND  
GND  
µMAX is a registered trademark of Maxim Integrated Products, Inc.  
SEE FIGURE 1 FOR A DETAILED TYPICAL OPERATING CIRCUIT WITHOUT R  
.
SENSE  
Selector Guide appears at end of data sheet.  
Pin Configurations appear at end of data sheet.  
Typical Operating Circuits continued at end of data sheet.  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,  
or visit Maxim’s website at www.maxim-ic.com.  

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