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LTC4217CDHC-PBF

产品描述2A Integrated Hot Swap Controller
文件大小186KB,共18页
制造商Linear ( ADI )
官网地址http://www.analog.com/cn/index.html
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LTC4217CDHC-PBF概述

2A Integrated Hot Swap Controller

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LTC4217
2A Integrated Hot Swap
Controller
FEATURES
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DESCRIPTION
The LTC
®
4217 is an integrated solution for Hot Swap™
applications that allows a board to be safely inserted and
removed from a live backplane. The part integrates a Hot
Swap controller, power MOSFET and current sense resistor
in a single package for small form factor applications. A
dedicated 12V version (LTC4217-12) contains preset 12V
specific thresholds, while the standard LTC4217 allows
adjustable thresholds.
The LTC4217 provides separate inrush current control
and a 5% accurate 2A current limit with foldback cur-
rent limiting. The current limit threshold can be adjusted
dynamically using an external pin. Additional features
include a current monitor output that amplifies the sense
resistor voltage for ground referenced current sensing
and a MOSFET temperature monitor output. Thermal limit,
overvoltage, undervoltage and power good monitoring
are also provided.
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. Hot Swap is a trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Small Footprint
33mΩ MOSFET with R
SENSE
Wide Operating Voltage Range: 2.9V to 26.5V
Adjustable, 5% Accurate Current Limit
Current and Temperature Monitor Outputs
Overtemperature Protection
Adjustable Current Limit Timer Before Fault
Power Good and Fault Outputs
Adjustable Inrush Current Control
2% Accurate Undervoltage and Overvoltage
Protection
Available in 20-Lead TSSOP and 16-Lead
5mm
×
3mm DFN Packages
APPLICATIONS
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RAID Systems
Server I/O Cards
Industrial
TYPICAL APPLICATION
12V, 1.5A Card Resident Application
12V
AUTO
RETRY
V
DD
UV
LTC4217DHC-12
FLT
TIMER
INTV
CC
0.1μF
GND
PG
I
SET
I
MON
20k
4217 TA01a
Power-Up Waveforms
+
V
OUT
12V
330μF 1.5A
OUT
12V
10k
V
IN
10V/DIV
I
IN
0.1A/DIV
V
OUT
10V/DIV
P
G
10V/DIV
4217 TA01b
ADC
25ms/DIV
4217fc
1

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描述 2A Integrated Hot Swap Controller 2A Integrated Hot Swap Controller 2A Integrated Hot Swap Controller 2A Integrated Hot Swap Controller
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