Datasheet > LTC4234CWHH#PBF

LTC4234CWHH#PBF

更新时间： 2024-02-05 08:40:17

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
20页	662K
描述
LTC4234 - 20A Guaranteed SOA Hot Swap Controller; Package: QFN; Pins: 38; Temperature Range: 0°C to 70°C

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技术参数
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LTC4234CWHH#PBF 技术参数

是否Rohs认证：	符合	生命周期：	Active
零件包装代码：	QFN	包装说明：	QFN-38
针数：	38	Reach Compliance Code：	compliant
风险等级：	2.29	Base Number Matches：	1

LTC4234CWHH#PBF 数据手册

LTC4234

20A Guaranteed SOA

Hot Swap Controller

FEATURES

DESCRIPTION

The LTC^®4234 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 applica-

tions.TheMOSFETSafeOperatingAreaisproductiontested

and guaranteed for the stresses in Hot Swap applications.

Allows Safe Board Insertion into Live Backplane

Small Footprint

4mΩ MOSFET Including R

SENSE

Safe Operating Area Guaranteed at 81W, 30ms

Wide Operating Voltage Range: 2.9V to 15V

Adjustable, 11% 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

2.5% Accurate Undervoltage and Overvoltage Protection

Pin Compatible with LTC4233

The LTC4234 provides separate inrush current control

and an 11% accurate 22.5A current limit with output

dependent foldback. The current limit threshold can be

adjusteddynamicallyusingtheI pin.Additionalfeatures

SET

include a current monitor output that amplifies the sense

resistor voltage for ground referenced current sensing

andaMOSFETtemperaturemonitoroutput.Thermallimit,

overvoltage,undervoltageandpowergoodmonitoringare

alsoprovided.Fora10Acompatibleversion,seeLTC4233.

Available in a 38-Pin (5mm × 9mm) QFN Package

APPLICATIONS

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

Hot Swap and PowerPath are trademarks of Linear Technology Corporation. All other

trademarks are the property of their respective owners.

High Availability Servers

Solid State Drives

Industrial

240W, 12V Systems

TYPICAL APPLICATION

12V, 20A Card Resident Application with Auto-Retry

12V

20A

OUT

Power-Up Waveform

OUT

12V

150k

20k

1000µF

107k

CONTACT

BOUNCE

10V/DIV

10k

FLT

LTC4234

5.23k

10k

0.2A/DIV

–

SENSE

GATE

OUT

10V/DIV

TIMER

INTV

SET

10V/DIV

ADC

MON

1µF

GND

20k

4234 TA01a

4234 TA01b

20ms/DIV

*TVS: DIODES INC. SMAJ17A

4234fa

For more information www.linear.com/LTC4234

12 3 4 5 6 7...20

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