参数资料
型号: LTC4214-1IMS#TRPBF
厂商: Linear Technology
文件页数: 1/32页
文件大小: 277K
描述: IC CTRLR HOTSWAP NEGVOLT 10MSOP
标准包装: 2,500
类型: 热交换控制器
应用: 通用
内部开关:
电源电压: 6 V ~ 16 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: 带卷 (TR)
LTC4214-1/LTC4214-2
1
421412f
TYPICAL APPLICATIO
APPLICATIO S
DESCRIPTIO
FEATURES
The LTC
?/DIV>
4214 negative voltage Hot Swap
TM
 controller
allows a board to be safely inserted and removed from a
live backplane. Output current is controlled by three stages
of current limiting: a timed circuit breaker, active current
limiting and a fast feedforward path that limits peak
current under worst-case catastrophic fault conditions.
Adjustable undervoltage and overvoltage detectors dis-
connect the load whenever the input supply exceeds the
desired operating range. The LTC4214 controls negative
supplies ranging from near zero to 16V. A multifunction
timer delays initial start-up and controls the circuit breakers
response time. This response time is accelerated by
sensing excessive MOSFET drain voltage, keeping the
MOSFET within its safe operating area (SOA). An adjust-
able soft-start circuit controls MOSFET inrush current at
start-up. A power good status output can enable a power
module at start-up or disable it if the circuit breaker trips.
The LTC4214-1 latches off after a circuit breaker fault times
out. The LTC4214-2 provides automatic retry after a fault.
The LTC4214 is available in the 10-pin MSOP package.
s
Hot Board Insertion
s
Electronic Circuit Breaker
s
Negative Power Supply Control
s
Central Office Switching
s
High Availability Servers
s
Disk Arrays
s
Optical Networking/Switching
s
ECL
, LTC and LT are registered trademarks of Linear Technology Corporation.
s
Allows Safe Board Insertion and Removal from a
Live Backplane
s
Controls Supplies from 0V to 16V
s
Adjustable Analog Current Limit With Circuit
Breaker Timer
s
Fast Response Time Limits Peak Fault Current
s
Adjustable Soft-Start Current Limit
s
Adjustable Timer with Drain Voltage Accelerated
Response
s
Adjustable Undervoltage/Overvoltage Protection
s
LTC4214-1: Latch Off After Fault
s
LTC4214-2: Automatic Retry After Fault
s
Available in the 10-Pin MSOP Package
Negative Low Voltage
Hot Swap Controllers
Hot Swap is a trademark of Linear Technology Corporation.
5.2V/5A ECL Supply Hot Swap Controller
 Start-Up Behavior
GATE
5V/DIV
SENSE
20mV/DIV
V
OUT
5V/DIV
PWRGD
5V/DIV
4214 TA02
4214 TA01
GND
3.3V
UV/OV
V
EE
V
IN
SENSE
SS
TIMER
GATE
PWRGD
LTC4214-1
34k
1%
10&
470&
2k
100nF
32.4k
1%
5.6nF
SMAJ7A
PUSH
RESET
3.3nF
10nF
5.2V
0.01&
IRF7413
GND
EN
5.2V
ECL
10&
1
9, 8
10
3
7
2
6
4
5
1nF
0.1礔
C
LOAD
100礔
GND
(SHORT PIN)
+
BSS138
75k
22&
DRAIN
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