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參數(shù)資料
| 型號： | LTC4222IG#TRPBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO36 |
| 封裝： | 5.30 MM, LEAD FREE, PLASTIC, SSOP-36 |
| 文件頁數(shù)： | 1/32頁 |
| 文件大小： | 280K |
| 代理商： | LTC4222IG#TRPBF |
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LTC4222
1
4222fa
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
Dual Hot Swap Controller
with I2C Compatible
Monitoring
The LTC4222 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 I2C interface and onboard ADC allows
for monitoring of current, voltage and fault status for
each channel.
The device features adjustable, analog, foldback current
limit circuits and a soft-start circuit that sets the dI/dt of
the inrush currents. An I2C interface may congure the
part to latch off or automatically restart after the LTC4222
detects a fault on either channel.
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
automatically upon insertion or wait for an I2C command
to turn on.
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.
Advanced Mezzanine Card Application
n Allows Safe Insertion Into a Live Backplane
n 10-Bit ADC Monitors Currents and Voltages
n I2C/SMBus Interface
n Wide Operating Voltage Range: 2.9V to 29V
n dI/dt Controlled Soft-Start
n High Side Drive for External N-Channel MOSFETs
n No External Gate Capacitors Required
n Input Overvoltage/Undervoltage Protection
n Optional Latchoff or Auto-Retry After Faults
n Alert Host After Faults
n Inrush Current Limit with Foldback
n Available in 32-Pin (5mm
× 5mm) QFN
and 36-Pin SSOP Packages
n Live Board Insertion
n Electronic Circuit Breakers
n Computers, Servers
n Platform Management
UV1 VDD1
SENSE1–
LTC4222
GATE1
INTVCC
ADR2
ADR1
NC
ADR0
CONFIG
SOURCE1
UV2 VDD2
12V
7.4A
3.3V
150mA
AUXPGOOD
12PGOOD
SENSE2– GATE2 SOURCE2
OV1
OV2
ALERT
SCL
SDA
ON
FB1
ADIN1
TIMER
GPIO1
EN1
SS
10Ω
68nF
6mΩ
Si7336ADP
10.2k
3.57k
10Ω
4222 TA01a
0.1μF
34k
1.02k
3.4k
GND
ALERT
SCL
ON
SDA
12V
ADIN2
FB2
GPIO2
EN2
0.1μF
10Ω
300mΩ
Si1046R
4.99k
3.57k
10Ω
0.1μF
6.55k
1.02k
3.4k
3.3V
PLUG-IN
CARD
BACKPLANE
1μF
10nF
Start-Up Waveform with Sequencing
VOUT2
10V/DIV
VOUT1
10V/DIV
GPIO
PGOOD
10V/DIV
VIN1/2
10V/DIV
4222 TA01b
50ms/DIV
CONTACT
BOUNCE
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4222IUH#PBF | 功能描述:IC CTRLR DUAL HOT SWAP 32-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:119 系列:- 類型:熱交換控制器 應(yīng)用:通用型，PCI Express? 內(nèi)部開關(guān):無 電流限制:- 電源電壓:3.3V，12V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:80-TQFP 供應(yīng)商設(shè)備封裝:80-TQFP（12x12） 包裝:托盤 產(chǎn)品目錄頁面:1423 (CN2011-ZH PDF) |
| LTC4222IUH#TRPBF | 功能描述:IC CTRLR DUAL HOT SWAP 32-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:119 系列:- 類型:熱交換控制器 應(yīng)用:通用型，PCI Express? 內(nèi)部開關(guān):無 電流限制:- 電源電壓:3.3V，12V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:80-TQFP 供應(yīng)商設(shè)備封裝:80-TQFP（12x12） 包裝:托盤 產(chǎn)品目錄頁面:1423 (CN2011-ZH PDF) |
| LTC4222IUH-PBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Hot Swap Controller with I2C Compatible Monitoring |
| LTC4222IUH-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Hot Swap Controller with I2C Compatible Monitoring |
| LTC4223 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Ideal Diode and Hot Swap Controller |
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