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ISL6161

更新时间： 2024-01-13 15:11:31
品牌 Logo 应用领域
英特矽尔 - INTERSIL 控制器
页数 文件大小 规格书
10页 224K
描述
Dual Power Distribution Controller

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ISL6161 技术参数

生命周期：Active零件包装代码：TSSOP
针数：16Reach Compliance Code：compliant
风险等级：5.69模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUIT
Base Number Matches：1

ISL6161 数据手册

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ISL6161  
®
Data Sheet  
July 2004  
FN9104.3  
Dual Power Distribution Controller  
Features  
The ISL6161 is a HOT SWAP dual supply power distribution  
controller that can be used in PCI-Express applications.  
• HOT SWAP Dual Power Distribution and Control for +12V  
and +3.3V  
• Provides Fault Isolation  
Two external N-Channel MOSFETs are driven to distribute  
and control power while providing load fault isolation. At turn-  
on, the gate of each external N-Channel MOSFET is  
charged with a 10µA current source. Capacitors on each  
gate (see the Typical Application Diagram), create a  
programmable ramp (soft turn-on) to control inrush currents.  
A built in charge pump supplies the gate drive for the 12V  
supply N-Channel MOSFET switch.  
• Programmable Current Regulation Level  
• Programmable Time Out  
• Charge Pump Allows the Use of N-Channel MOSFETs  
• Power Good and Over Current Latch Indicators  
• Adjustable Turn-On Ramp  
• Protection During Turn-On  
Over current protection is facilitated by two external current  
sense resistors and FETs. When the current through either  
resistor exceeds the user programmed value the controller  
enters the current regulation mode. The time-out capacitor,  
• Two Levels of Current Limit Detection Provide Fast  
Response to Varying Fault Conditions  
• 1µs Response Time to Dead Short  
• 3µs Response Time to 200% Current Overshoot  
• Pb-free available  
C
, starts charging as the controller enters the time out  
TIM  
period. Once C  
charges to a 2V threshold, both the  
TIM  
N-Channel MOSFETs are latched off. In the event of a hard  
and fast fault of at least three times the programmed current  
limit level, the N-Channel MOSFET gates are pulled low  
immediately before entering the time out period. The  
controller is reset by a rising edge on the ENABLE pin.  
Applications  
• PCI-Express Applications  
• Power Distribution and Control  
• Hot Plug, Hot Swap Components  
The ISL6161 constantly monitors both output voltages and  
reports either one being low on the PGOOD output as a low.  
The 12V PGOOD Vth is ~10.8V and the 3.3V Vth is ~2.8V  
nominally.  
TEMP. RANGE  
PKG.  
DWG. #  
o
PART NUMBER  
( C)  
PACKAGE  
ISL6161CB  
-0 to 70  
-0 to 70  
14 Ld SOIC  
M14.15  
M14.15  
ISL6161CBZA  
(See Note)  
14 Ld SOIC  
(Pb-free)  
*Add “-T” suffix to part number for tape and reel packaging.  
NOTE: Intersil Pb-free products employ special Pb-free material sets; molding  
compounds/die attach materials and 100% matte tin plate termination finish, which  
is compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free  
products are MSL classified at Pb-free peak reflow temperatures that meet or  
exceed the Pb-free requirements of IPC/JEDEC J Std-020B.  
Pinout  
Typical Application Diagram  
ISL6161 (SOIC)  
TOP VIEW  
C
PUMP  
R
SENSE  
R
LOAD  
1
2
3
4
5
6
7
12VS  
12VG  
14  
12VISEN  
12V  
ISL6161  
R
13  
ILIM  
12VISEN  
R
12VS  
12VG  
OPTIONAL  
ILIM  
C
C
V
R
12 GND  
11 C  
GATE  
DD  
ILIM  
R
FILTER  
V
DD  
GND  
NC  
V
PUMP  
DD  
C
PUMP  
ENABLE  
3VG  
C
FILTER  
10 C  
TIM  
ENABLE  
INPUT  
TIM  
3.3V  
C
TIM  
ENABLE  
3VG  
9
8
PGOOD  
3VISEN  
PGOOD  
3ISEN  
3VS  
3.3V  
3VS  
R
C
R
GATE  
SENSE  
LOAD  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.  
Copyright © Intersil Americas Inc. 2001, 2003-2004. All Rights Reserved. Hot Plug™ is a trademark of Core International, Inc.  
All other trademarks mentioned are the property of their respective owners.  
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ISL6172DRZA-T RENESAS

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