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MAX5943CEEE PDF预览

MAX5943CEEE

更新时间: 2024-10-13 22:55:19
品牌 Logo 应用领域
美信 - MAXIM 开关控制器
页数 文件大小 规格书
20页 930K
描述
FireWire Current Limiter and Low-Drop ORing Switch Controller

MAX5943CEEE 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:SSOP
包装说明:0.150 INCH, 0.025 INCH PITCH, MO-137-AB, QSOP-16针数:16
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.31.00.01风险等级:5.31
可调阈值:YES模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码:R-PDSO-G16JESD-609代码:e0
长度:4.9 mm湿度敏感等级:1
信道数量:1功能数量:1
端子数量:16最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:SSOP封装等效代码:SSOP16,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, SHRINK PITCH
峰值回流温度(摄氏度):245电源:7.5/37 V
认证状态:Not Qualified座面最大高度:1.75 mm
子类别:Power Management Circuits最大供电电流 (Isup):2.3 mA
最大供电电压 (Vsup):37 V最小供电电压 (Vsup):7.5 V
标称供电电压 (Vsup):12 V表面贴装:YES
技术:BICMOS温度等级:INDUSTRIAL
端子面层:Tin/Lead (Sn85Pb15)端子形式:GULL WING
端子节距:0.635 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:3.9 mm
Base Number Matches:1

MAX5943CEEE 数据手册

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19-3378; Rev 0; 8/04  
FireWire Current Limiter and Low-Drop  
ORing Switch Controller  
General Description  
Features  
Provides Safe Hot Swap for 7.5V to 37V Power  
The MAX5943 is a fully integrated power-management  
®
IC for FireWire applications. This device controls two  
Supplies  
external power n-channel MOSFETs to regulate current  
from the input power supply to the load and performs  
low-voltage-drop, power-supply ORing. The MAX5943  
operates over a 7.5V to 37V input range and provides  
inrush and output current limit in addition to a diode  
ORing function suitable for FireWire applications.  
Low-Drop Power ORing with Ultra-Fast Turn-Off  
Programmable Active Current Limit (MAX5943A)  
Programmable Circuit Breaker  
(MAX5943B–MAX5943E)  
The MAX5943 allows the safe insertion and removal of  
FireWire peripherals into a live FireWire port by providing  
inrush current control and an output current-limiting func-  
tion. The ORing feature provides a very efficient way to  
protect the FireWire port when connected to another  
FireWire peripheral that sources a higher voltage. By turn-  
ing off both external MOSFETS, the MAX5943 provides a  
true bidirectional load disconnect. A low-current shut-  
down mode disables the MAX5943, resulting in less than  
10µA supply current. A pin-selectable input allows  
latched or autoretry fault management after a fault.  
±5% Current-Limit Sensing Accuracy  
Programmable Current-Limit/Circuit-Breaker  
Timeout  
Fast Current-Limit Response to Output Short-  
Circuit Conditions (MAX5943A)  
Drives External N-Channel Power MOSFETs  
Overcurrent Fault Status Output  
Latched or Autoretry Overcurrent Fault  
Management  
The MAX5943A features a current-limit function that  
actively limits the current drawn by the load with a pro-  
grammable timeout. The MAX5943B–MAX5943E do not  
actively limit the load current but provide a circuit-breaker  
function. See the Selector Guide for the default and pro-  
grammable circuit-breaker timeouts.  
10µA Shutdown Current  
ON/OFF Control Allows Undervoltage Lockout  
Programming  
Fast Load Disconnect Control Through ON Input  
The MAX5943 operates over the -40°C to +85°C extended  
temperature range and is available in a 16-pin QSOP  
package.  
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  
PIN-PACKAGE  
16 QSOP  
MAX5943AEEE  
MAX5943BEEE  
MAX5943CEEE  
MAX5943DEEE  
MAX5943EEEE  
Applications  
16 QSOP  
FireWire Desktop/Notebook Port  
FireWire Peripheral Device Current Limit  
FireWire Hub  
16 QSOP  
16 QSOP  
16 QSOP  
Hot Swap  
Pin Configuration  
TOP VIEW  
ON  
1
2
3
4
5
6
7
8
16 IN  
FAULT  
TIM  
15 SENSE  
14 GATE1  
ILIM  
MAX5943  
13 N.C.  
12 GATE2  
11 OUT  
10 N.C.  
LATCH  
OR_ADJ  
N.C.  
Typical Operating Circuit and Selector Guide appear at end  
of data sheet.  
ONQ1  
9
GND  
QSOP  
FireWire is a registered trademark of Apple Computers, Inc.  
________________________________________________________________ Maxim Integrated Products  
1
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.  

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