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ADM1172-1AUJZ-RL7

更新时间： 2024-02-06 08:42:54
品牌 Logo 应用领域
亚德诺 - ADI 电源电路比较器电源管理电路光电二极管控制器
页数 文件大小 规格书
16页 216K
描述
2.7 V to 16.5 V Hot Swap Controller with Power-Fail Comparator

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ADM1172-1AUJZ-RL7 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Active零件包装代码：TSSOP
包装说明：VSSOP,针数：8
Reach Compliance Code：unknown风险等级：5.32
Is Samacsys：N其他特性：UNDER VOLTAGE LOCKOUT
可调阈值：NO模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码：R-PDSO-G8JESD-609代码：e4
长度：2.9 mm湿度敏感等级：1
信道数量：1功能数量：1
端子数量：8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：VSSOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：260
座面最大高度：1 mm最大供电电压 (Vsup)：16.5 V
最小供电电压 (Vsup)：2.7 V标称供电电压 (Vsup)：5 V
表面贴装：YES温度等级：INDUSTRIAL
端子面层：NICKEL PALLADIUM GOLD端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：40宽度：1.6 mm
Base Number Matches：1

ADM1172-1AUJZ-RL7 数据手册

 浏览型号ADM1172-1AUJZ-RL7的Datasheet PDF文件第2页浏览型号ADM1172-1AUJZ-RL7的Datasheet PDF文件第3页浏览型号ADM1172-1AUJZ-RL7的Datasheet PDF文件第4页浏览型号ADM1172-1AUJZ-RL7的Datasheet PDF文件第5页浏览型号ADM1172-1AUJZ-RL7的Datasheet PDF文件第6页浏览型号ADM1172-1AUJZ-RL7的Datasheet PDF文件第7页 
2.7 V to 16.5 V Hot Swap Controller  
with Power-Fail Comparator  
ADM1172  
FEATURES  
GENERAL DESCRIPTION  
Controls supply rails from 2.7 V to 16.5 V  
Allows protected board removal and insertion to a live  
backplane  
External sense resistor provides adjustable analog current  
limit with circuit breaker  
Peak fault current limited with fast response  
Charge pumped gate drive for external N-FET switch  
Power-fail comparator  
The ADM1172 is a hot swap controller that safely enables a  
printed circuit board to be removed and inserted to a live  
backplane. This is achieved using an external N-channel power  
MOSFET with a current control loop that monitors the load  
current through a sense resistor. An internal charge pump is  
used to enhance the gate of the N-channel FET. When an over-  
current condition is detected, the gate voltage of the FET is  
reduced to limit the current flowing through the sense resistor.  
During an overcurrent condition, the TIMER pin capacitor  
determines the amount of time the FET remains at a current  
limiting mode of operation until it is shut down. The ON  
Automatic retry or latch-off during current fault  
Undervoltage lockout  
8-lead, TSOT package  
CLR  
(ON-  
) pin is the enable input for the device and can be  
APPLICATIONS  
used to monitor the input supply voltage. The ADM1172  
operates with a supply voltage ranging from 2.7 V to 16.5 V.  
Hot swap board insertion: line cards, raid systems  
Industrial high-side switches/circuit breakers  
Electronic circuit breakers  
The ADM1172 also features a power-fail comparator. The  
voltage on the PFI pin is compared with an internal 0.6 V  
reference, and the output of this comparator is presented on  
the PFO pin. This device is available in two options: the  
ADM1172-1 with automatic retry for overcurrent fault and the  
ADM1172-2 with latch-off for an overcurrent fault. Toggling  
CLR  
the ON (ON-  
) pin resets a latched fault. The ADM1172 is  
packaged in an 8-lead TSOT.  
FUNCTIONAL BLOCK DIAGRAM  
R
SENSE  
Q
LONG  
1
V
= 5V  
V
= 5V  
OUT  
IN  
C
LOAD  
V
SENSE  
GATE  
CC  
R
ON1  
SHORT  
R
R
PR1  
ON  
ADM1172-1  
PFI  
R
ON2  
PFO  
TIMER  
GND  
PR2  
C
TIMER  
GND  
LONG  
GND  
Figure 1.  
Rev. 0  
Information furnished by Analog Devices is believed to be accurate and reliable. However, no  
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other  
rights of third parties that may result from its use. Specifications subject to change without notice. No  
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.  
Trademarks and registeredtrademarks arethe property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Fax: 781.461.3113  
www.analog.com  
©2006 Analog Devices, Inc. All rights reserved.  
 
 
 
 
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