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HIP1012A_04

更新时间： 2024-11-15 04:21:47
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英特矽尔 - INTERSIL 控制器
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15页 543K
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Dual Power Distribution Controller

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HIP1012A_04 数据手册

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HIP1012A  
®
Data Sheet  
March 2004  
FN4419.6  
Dual Power Distribution Controller  
The HIP1012A is a HOT SWAP dual supply power distribution  
controller. Two external N-Channel MOSFETs are driven to  
distribute power while providing load fault isolation.  
Features  
• HOT SWAP Dual Power Distribution Control for +5V and  
+12V or +5V and +3.3V  
• Provides 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 Overcurrent Latch Indicators  
• Enhanced Overcurrent Sensitivity Available  
• Redundant Power On Controls  
Overcurrent protection is facilitated by two external current  
sense resistors. When the current through either resistor  
exceeds the user programmed value the controller enters the  
• Adjustable Turn-On Ramp  
current regulation mode. The time-out capacitor, C , starts  
TIM  
• Protection During Turn-On  
charging as the controller enters the time out period. Once  
C
charges to a 2V threshold, the N-Channel MOSFETs are  
• Two Levels of Current Limit Detection Provide Fast  
Response to Varying Fault Conditions  
TIM  
latched off. In the event of a fault at least three times the  
current limit level, the N-Channel MOSFET gates are pulled  
low immediately before entering time out period. The  
controller is reset by a rising edge on either PWRON pin.  
• Less Than 1µs Response Time to Dead Short  
• 3µs Response Time to 200% Current Overshoot  
• Pb-Free Package Option  
Choosing the voltage selection mode the HIP1012 controls  
either +12V/5V or +3.3V/+5V supplies.  
• Tape & Reel Packaging with ‘-T’ Part Number Suffix  
Ordering Information  
Applications  
• Redundant Array of Independent Disks (RAID) System  
TEMP.  
PKG.  
PART NUMBER  
HIP1012ACB  
RANGE (°C)  
PACKAGE  
14 Ld SOIC  
DWG. #  
• Power Distribution Control  
-0 to 70  
-0 to 70  
M14.15  
HIP1012ACBZA (Note)  
14 Ld SOIC( Pb-free) M14.15  
• Hot Plug, Hot Swap Components  
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  
HIP1012A (SOIC)  
C
TOP VIEW  
PUMP  
R
SENSE  
R
LOAD  
1
2
3
4
5
6
7
3/12VISEN  
3/12VS  
3/12VG  
14  
13  
R
12V  
HIP1012A  
3/12VS 3/12VISEN  
GATE  
R
ILIM  
R
OPTIONAL  
ILIM  
C
V
C
GATE  
12 GND  
R
GND  
DD  
ILIM  
3/12VG  
R
FILTER  
V
DD  
MODE/  
11  
10  
9
C
C
V
PUMP  
TIM  
DD  
PWRON1  
PWRON2  
5VG  
C
PUMP  
C
M/PON1  
PWRON2  
5VG  
FILTER  
POWER ON  
INPUTS  
TIM  
5V OR 3.3V  
C
TIM  
PGOOD  
5VISEN  
PGOOD  
5ISEN  
8
5VS  
R
GATE  
5V  
5VS  
C
R
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. 2004. All Rights Reserved  
1
All other trademarks mentioned are the property of their respective owners.  
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