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MAX5963

更新时间： 2024-11-29 05:49:07
品牌 Logo 应用领域
美信 - MAXIM 二极管控制器
页数 文件大小 规格书
20页 291K
描述
Dual, 7.5V to 76V, Hot-Swap and Diode ORing Controller

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MAX5963 数据手册

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19-4344; Rev 0; 10/08  
Dual, 7.5V to 76V, Hot-Swap and  
Diode ORing Controller  
MAX5963  
General Description  
Features  
The MAX5963 dual hot-swap and diode ORing con-  
troller provides complete protection for dual-supply high  
availability systems. The device operates from 7.5V to  
76V and provides hot-swap and low voltage-drop diode  
ORing functionality for two 7.5V to 76V outputs.  
o Hot Swaps Two 7.5V to 76V Supplies  
o Integrates Low-Voltage-Drop ORing Controller  
o
5ꢀ ꢁAAuraAc ꢂileꢃel ꢁAtiꢃe Current LiꢄitꢅCirAuit  
ꢂreaker  
o Prograꢄꢄable Current-LiꢄitꢅCirAuit-ꢂreaker  
The MAX5963 allows for the safe insertion and removal  
®
of system line cards and FireWire peripherals into a  
Tiꢄeout  
live backplane by providing inrush current control and  
active current limiting. The device controls external  
n-channel power MOSFETs to perform low-voltage-drop  
ORing, inrush current control, and current limiting func-  
tions. The current-limit function actively limits the cur-  
rent drawn by the load, protecting the load from a  
short-circuit condition. The MAX5963 also features a  
circuit-breaker function that disconnects the power to  
the load if the load current exceeds the circuit-breaker  
limit for a programmable circuit-breaker timeout.  
o 10µꢁ Power-Off Mode Current  
o ProteAts Up to Two FireWire Ports  
o Scsteꢄ Power-OnꢅOff ORing  
o LatAhoff or ꢁutoretrc Power Manageꢄent  
o Independent ONꢅOFF Control ꢁllows  
Underꢃoltage LoAkout Prograꢄꢄing  
o Fast Load DisAonneAt through FOSO Input  
(FireWire Port)  
The MAX5963 features an autoretry/latchoff input. In  
autoretry mode, the MAX5963 automatically restarts the  
turned-off channel after a programmable delay. In  
latchoff mode, the MAX5963 latches the channel off.  
Ordering Information  
PꢁRT  
TEMP RꢁNGE  
PIN-PꢁCKꢁGE  
The MAX5963 consumes less than 10µA from the PWR  
supply in system power-off mode.  
MAX5963UTL+  
0°C to +85°C  
40 TQFN-EP*  
+Denotes a lead-free/RoHS-compliant package.  
*EP = Exposed pad.  
The MAX5963 is available in a 40-pin TQFN package  
(6mm x 6mm) and operates over the 0°C to +85°C  
upper commercial temperature range.  
Pin Configuration  
Applications  
Blade Servers  
TOP VIEW  
Base-Station Line Cards  
30 29 28 27 26 25 24 23 22 21  
Network Switches/Routers  
FireWire Desktops/Notebook Ports  
FireWire Hubs  
20  
31  
32  
33  
SENSEB  
TCL  
19 OR  
18 CL  
TCB  
ONB  
17  
16  
CB  
ONA 34  
35  
36  
37  
38  
39  
40  
N.C.  
FOSO  
ENZ  
MAX5963  
15 PS  
14  
N.C.  
13 BP  
12  
ENY  
ENX  
N.C.  
N.C.  
*EP  
TcpiAal Operating CirAuit appears at end of data sheet.  
+
SENSEA  
11 N.C.  
1
2
3
4
5
6
7
8
9
10  
THIN QFN  
(6ꢄꢄ x 6ꢄꢄ)  
FireWire is a registered trademark of Apple, Inc.  
________________________________________________________________ Maxiꢄ Integrated ProduAts  
1
For priAing, deliꢃerc, and ordering inforꢄation, please AontaAt Maxiꢄ DireAt at 1-888-629-4642,  
or ꢃisit Maxiꢄ’s website at www.ꢄaxiꢄ-iA.Aoꢄ.  
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