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General Description
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.
The MAX5963 allows for the safe insertion and removal
of system line cards and FireWire
?/DIV>
peripherals into a
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.
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.
The MAX5963 consumes less than 10礎 from the PWR
supply in system power-off mode.
The MAX5963 is available in a 40-pin TQFN package
(6mm x 6mm) and operates over the 0癈 to +85癈
upper commercial temperature range.
Applications
Blade Servers
Base-Station Line Cards
Network Switches/Routers
FireWire Desktops/Notebook Ports
FireWire Hubs
Features
o Hot Swaps Two 7.5V to 76V Supplies
o Integrates Low-Voltage-Drop ORing Controller
o ?/SPAN>5% Accuracy Bilevel Active Current Limit/Circuit
Breaker
o Programmable Current-Limit/Circuit-Breaker
Timeout
o 10?/SPAN>A Power-Off Mode Current
o Protects Up to Two FireWire Ports
o System Power-On/Off ORing
o Latchoff or Autoretry Power Management
o Independent ON/OFF Control Allows
Undervoltage Lockout Programming
o Fast Load Disconnect through FOSO Input
(FireWire Port)
Dual, 7.5V to 76V, Hot-Swap and
Diode ORing Controller
________________________________________________________________ Maxim Integrated Products   1
MAX5963
THIN QFN
(6mm x 6mm)
TOP VIEW
35
36
34
33
12
11
13
14
1   2
ONA
4
+
5   6   7
27
28
29
30
26
24  23  22
FOSO
ENZ
CL
CB
N.C.
PS
3
*EP
25
37
ENY
N.C.
38
39
40
ENX
N.C.
N.C.
BP
SENSEA
N.C.
ONB
32
15
OR
TCB
31
16
17
18
19
20
SENSEB
8   9   10
21
TCL
Pin Configuration
Ordering Information
19-4344; Rev 0; 10/08
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxims website at www.maxim-ic.com.
E
V
AL
U
A
T
IO
N
 K
IT
A
V
A
IL
A
BL
E
+Denotes a lead-free/RoHS-compliant package.
*EP = Exposed pad.
PART
TEMP RANGE
PIN-PACKAGE
MAX
TL+
0癈 to +85癈
40 TQFN-EP*
Typical Operating Circuit appears at end of data sheet.
FireWire is a registered trademark of Apple, Inc.
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相关代理商/技术参数
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MAX5965AUAX+ 功能描述:热插拔功率分布 Quad PSE Controller for POE 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
MAX5965AUAX+T 功能描述:热插拔功率分布 Quad PSE Controller for POE 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
MAX5965BCAX+ 制造商:Maxim Integrated Products 功能描述:- Rail/Tube
MAX5965BCAX+T 制造商:Maxim Integrated Products 功能描述:HIGH-POWER, QUAD, MONOLITHIC, PSE CONTROLLERS FOR POWER OVER - Tape and Reel