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参数资料
| 型号： | LTC4222IUH#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/32页 |
| 文件大小： | 339K |
| 描述： | IC CTRLR DUAL HOT SWAP 32-QFN |
| 标准包装： | 73 |
| 类型： | 热交换控制器 |
| 应用： | 通用 |
| 内部开关： | 无 |
| 电源电压： | 2.9 V ~ 29 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 供应商设备封装： | 32-QFN 裸露焊盘（5x5） |
| 包装： | 管件 |
| 产品目录页面： | 1342 (CN2011-ZH PDF) |
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LTC4222
1
4222fb
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
Dual Hot Swap Controller
with I
2
C Compatible
Monitoring
The LTC
?/DIV>
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
2
C 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 I
2
C interface may configure 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 I
2
C command
to turn on.
Advanced Mezzanine Card Application
n
Allows Safe Insertion Into a Live Backplane
n
10-Bit ADC Monitors Currents and Voltages
n
I
2
C/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 V
DD1
SENSE1
LTC4222
GATE1
INTV
CC
ADR2
ADR1
NC
ADR0
CONFIG
SOURCE1
UV2 V
DD2
12V
7.4A
3.3V
150mA
AUXPGOOD
12PGOOD
SENSE2
GATE2 SOURCE2
OV1
OV2
ALERT
SCL
SDA
ON
FB1
ADIN1
TIMER
GPIO1
EN1
SS
10
68nF
6m
Si7336ADP
10.2k
3.57k
10k
4222 TA01a
0.1礔
34k
1.02k
3.4k
GND
ALERT
SCL
ON
SDA
12V
ADIN2
FB2
GPIO2
EN2
0.1礔
10
300m
Si1046R
4.99k
3.57k
10k
0.1礔
6.55k
1.02k
3.4k
3.3V
PLUG-IN
CARD
BACKPLANE
1礔
10nF
Start-Up Waveform with Sequencing
V
OUT2
10V/DIV
V
OUT1
10V/DIV
GPIO
PGOOD
10V/DIV
V
IN1/2
10V/DIV
4222 TA01b
50ms/DIV
CONTACT
BOUNCE
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. Protected by U.S. Patents including 7330065.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| LTC4223-1 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Supply Hot Swap Controller for Advanced Mezzanine Card |
| LTC4223-2 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Supply Hot Swap Controller for Advanced Mezzanine Card |
| LTC4223CDHD-1#PBF | 功能描述:IC CNTRLR HOT SWAP DUAL 16-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 标准包装:50 系列:- 类型:热交换控制器 应用:-48V 远程电力系统，AdvancedTCA ? 系统，高可用性 内部开关:无 电流限制:可调 电源电压:11.5 V ~ 14.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
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