Datasheet > LTC4222IUH-PBF

LTC4222IUH-PBF

更新时间： 2024-11-12 05:43:59

品牌	Logo	应用领域
凌特 - Linear		监控控制器
页数	文件大小	规格书
32页	277K
描述
Dual Hot Swap Controller with I2C Compatible Monitoring

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中文翻译

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LTC4222IUH-PBF 数据手册

LTC4222

Dual Hot Swap Controller

with I C Compatible

Monitoring

FEATURES

DESCRIPTION

The LTC^®4222 Hot Swap™ controller allows two power

paths to be safely inserted and removed from a live back-

plane. Using external N-channel pass transistors, board

supply voltages and inrush currents are ramped up at an

adjustable rate. An I C interface and onboard ADC allows

for monitoring of current, voltage and fault status for

each channel.

Allows Safe Insertion Into a Live Backplane

10-Bit ADC Monitors Currents and Voltages

I C/SMBus Interface

Wide Operating Voltage Range: 2.9V to 29V

dI/dt Controlled Soft-Start

High Side Drive for External N-Channel MOSFETs

No External Gate Capacitors Required

Input Overvoltage/Undervoltage Protection

The device features adjustable, analog, foldback current

limit circuits and a Soft-Start circuit that sets the dI/dt of

the inrush currents. An I C interface may conﬁgure the

part to latch off or automatically restart after the LTC4222

detects a fault on either channel.

Optional Latchoff or Auto-Retry After Faults

Alert Host After Faults

Inrush Current Limit with Foldback

Available in 32-Pin (5mm × 5mm) QFN and 36-Pin

SSOP Packages

The controller has additional features to interrupt the host

when a fault has occurred, notify when output power is

good, detect insertion of a load card and power-up either

APPLICATIONS

Live Board Insertion

automatically upon insertion or wait for an I C command

Electronic Circuit Breakers

to turn on.

Computers, Servers

L, LT, LTC and LTM 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. Protected by U.S. Patents including 7330065.

Platform Management

TYPICAL APPLICATION

Advanced Mezzanine Card Application

6mΩ

Si7336ADP

12V

7.4A

12V

34k

10.2k

3.57k

10Ω

–

0.1μF

10Ω

1.02k

Start-Up Waveform with Sequencing

UV1

OV1

SDA

SCL

SENSE1 GATE1 SOURCE1

DD1

3.4k

FB1

GPIO1

EN1

12PGOOD

SDA

SCL

IN1/2

10V/DIV

ADIN1

CONTACT

BOUNCE

ALERT

TIMER

CONFIG

ADR0

ADR1

ADR2

OUT2

1μF

10V/DIV

LTC4222

68nF

OUT1

10V/DIV

ADIN2

INTV

0.1μF

EN2

GPIO

PGOOD

10V/DIV

GND

OV2

UV2

GPIO2

FB2

AUXPGOOD

3.4k

–

SENSE2 GATE2 SOURCE2

DD2

1.02k

4222 TA01b

3.57k

4.99k

50ms/DIV

10Ω

10nF

10Ω

0.1μF

3.3V

6.55k

3.3V

150mA

Si1046R

300mΩ

BACKPLANE PLUG-IN

CARD

4222 TA01a

4222f

12 3 4 5 6 7...32

中文翻译

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与LTC4222IUH-PBF相关器件

型号	品牌	获取价格	描述	数据表
LTC4222IUH-TRPBF	Linear	获取价格	Dual Hot Swap Controller with I2C Compatible Monitoring
LTC4223	Linear	获取价格	Dual Ideal Diode and Hot Swap Controller
LTC4223	ADI	获取价格	用于高级夹层卡的双路电源热插拔控制器
LTC4223-1	Linear	获取价格	Dual Supply Hot Swap Controller for Advanced Mezzanine Card
LTC4223-2	Linear	获取价格	Dual Supply Hot Swap Controller for Advanced Mezzanine Card
LTC4223CDHD-1#PBF	Linear	获取价格	LTC4223 - Dual Supply Hot Swap Controller for Advanced Mezzanine Card; Package: DFN; Pins:
LTC4223CDHD-1PBF	Linear	获取价格	Dual Supply Hot Swap Controller for Advanced Mezzanine Card
LTC4223CDHD-1TRPBF	Linear	获取价格	Dual Supply Hot Swap Controller for Advanced Mezzanine Card
LTC4223CDHD-2#PBF	Linear	获取价格	LTC4223 - Dual Supply Hot Swap Controller for Advanced Mezzanine Card; Package: DFN; Pins:
LTC4223CDHD-2PBF	Linear	获取价格	Dual Supply Hot Swap Controller for Advanced Mezzanine Card

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