Datasheet > LTC4219CDHC-12-PBF

LTC4219CDHC-12-PBF

更新时间： 2024-11-12 05:43:59

品牌	Logo	应用领域
凌特 - Linear		控制器
页数	文件大小	规格书
16页	198K
描述
5A Integrated Hot Swap Controller

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LTC4219

5A Integrated

Hot Swap Controller

FEATURES

DESCRIPTION

The LTC^®4219 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

Swapcontroller,powerMOSFETandcurrentsenseresistor

in a single package for small form factor applications.

Small Footprint

33mΩ MOSFET with R

SENSE

Available in Preset 12V and 5V Versions

Adjustable, 10% 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

The LTC4219 provides separate inrush current control

and a 10% accurate 5.6A 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

and power good monitoring are also provided. The power

good detection level and foldback current limit proﬁle are

internallypresetfor5V(LTC4219-5)and12V(LTC4219-12)

applications.

Available in 16-Lead 5mm × 3mm DFN Packages

APPLICATIONS

RAID Systems

Server I/O Cards

Industrial

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and Hot

Swap is a trademark of Linear Technology Corporation. All other trademarks are the property of

their respective owners.

TYPICAL APPLICATION

12V, 5A Card Resident Application

Power-Up Waveforms

12V

OUT

12V

10k

10V/DIV

330μF

LTC4219DHC-12

12V

10k

0.1A/DIV

EN1

OUT

EN2

FLT

10V/DIV

TIMER

SET

10V/DIV

INTV

ADC

MON

4219 TA01b

20ms/DIV

0.1μF

GND

20k

4219 TA01a

4219f

12 3 4 5 6 7...16

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