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参数资料
| 型号： | LTC4222IG#TRPBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO36 |
| 封装： | 5.30 MM, LEAD FREE, PLASTIC, SSOP-36 |
| 文件页数： | 1/32页 |
| 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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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4222IUH#PBF | 功能描述:IC CTRLR DUAL HOT SWAP 32-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:119 系列:- 类型:热交换控制器 应用:通用型，PCI Express? 内部开关:无 电流限制:- 电源电压:3.3V，12V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:80-TQFP 供应商设备封装:80-TQFP（12x12） 包装:托盘 产品目录页面:1423 (CN2011-ZH PDF) |
| LTC4222IUH#TRPBF | 功能描述:IC CTRLR DUAL HOT SWAP 32-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:119 系列:- 类型:热交换控制器 应用:通用型，PCI Express? 内部开关:无 电流限制:- 电源电压:3.3V，12V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:80-TQFP 供应商设备封装:80-TQFP（12x12） 包装:托盘 产品目录页面:1423 (CN2011-ZH PDF) |
| LTC4222IUH-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Hot Swap Controller with I2C Compatible Monitoring |
| LTC4222IUH-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Hot Swap Controller with I2C Compatible Monitoring |
| LTC4223 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Ideal Diode and Hot Swap Controller |
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