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參數(shù)資料
| 型號： | LTC4212IMS |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | Hot Swap Controller with Power-Up Timeout |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
| 封裝： | PLASTIC, MSOP-10 |
| 文件頁數(shù)： | 1/24頁 |
| 文件大?。?/td> | 230K |
| 代理商： | LTC4212IMS |
1
LTC4212
4212f
APPLICATIU
FEATURES
TYPICAL APPLICATIO
U
DESCRIPTIO
U
I
Allows Safe Board Insertion and Removal
from a Live Backplane
I
Controls Supply Voltages from 2.5V to 16.5V
I
Adjustable Soft-Start with Inrush Current
Limiting
I
Fast Turn-Off Time
I
No External Gate Capacitor is Required
I
Power Good Input with Adjustable Timer and
Glitch Filter
I
Power-Up Timeout Circuit Interfaces with External
Supply Monitors
I
Dual Level Overcurrent Fault Protection
I
Automatic Retry or Latched Mode Operation
I
High Side Drive for an External N-Channel FET
I
MS10 Package
The LTC
4212 is a Hot Swap
TM
controller that allows a
board to be safely inserted and removed from a live
backplane. An internal high side switch driver controls the
gate of an external N-channel MOSFET for supply voltages
ranging from 2.5V to 16.5V. The LTC4212 provides soft-
start and inrush current limiting during the start-up
period.
It features a power-up timeout circuit that discon-
nects the system supply when the onboard supplies do not
enter into regulation within an adjustable timeout period.
The controller interfaces with external supply monitor ICs
or directly with the PGOOD pin of a DC/DC converter. After
normal power-up, a programmable power good glitch
filter can be enabled to filter out short term dips in the
supplies.
Two current limit comparators provide dual level
overcurrent circuit breaker protection. The slow com-
parator trips at V
CC
– 50mV and activates in 18
μ
s. The fast
comparator trips at V
CC
– 150mV and typically responds
in 500ns.
The LTC4212 can be configured for both latchoff and
autoretry applications and is available in a 10-pin MSOP
package.
I
Electronic Circuit Breaker
I
Hot Board Insertion and Removal
I
Self-Isolating Hot Swap Boards
Hot Swap Controller with
Power-Up Timeout
, LTC and LT are registered trademarks of Linear Technology Corporation.
Hot Swap is a trademark of Linear Technology Corporation.
+
V
CC
SENSE
LTC4212
10
μ
F
+
10
μ
F
5V
2.5V
1.5A
3.3V
1.5A
4212 TA01a
GATE
PGT
PGF
TIMER
0.01
μ
F
PGI
ON
V
CC
5V
GND
Z1 = SMAJ10A (TVS)
20k
10k
10
0.007
EDGE
CONNECTOR
(MALE)
Si4410DY
Z1
10k
10k
2.1k
10k
FAULT
GND
FAULT
+
10
μ
F
LT1963-2.5
4.7nF
270pF
100nF
BACKPLANE
CONNECTOR
(FEMALE)
+
10
μ
F
+
10
μ
F
LT1963-3.3
LTC1727-2.5
COMP2.5
COMP3
COMP A
GND
V
CCA
V
CC3
V
CC25
Power-Up Waveforms
ON
5V/DIV
TIMER
1V/DIV
PGT
1V/DIV
PGI
5V/DIV
Hot Swap Controller with Power Good Function
5ms/DIV
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| LTC4212IMS#PBF | 功能描述:IC CTRLR HOTSWAP TIMEOUT 10MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標準包裝:100 系列:- 類型:熱插拔開關(guān) 應(yīng)用:通用 內(nèi)部開關(guān):是 電流限制:可調(diào) 電源電壓:9 V ~ 13.2 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-TDFN-EP（3x3） 包裝:管件 |
| LTC4212IMS#TR | 功能描述:IC CTRLR HOTSWAP TIMEOUT 10MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標準包裝:100 系列:- 類型:熱插拔開關(guān) 應(yīng)用:通用 內(nèi)部開關(guān):是 電流限制:可調(diào) 電源電壓:9 V ~ 13.2 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-TDFN-EP（3x3） 包裝:管件 |
| LTC4212IMS#TRPBF | 功能描述:IC CTRLR HOTSWAP TIMEOUT 10MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標準包裝:100 系列:- 類型:熱插拔開關(guān) 應(yīng)用:通用 內(nèi)部開關(guān):是 電流限制:可調(diào) 電源電壓:9 V ~ 13.2 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-TDFN-EP（3x3） 包裝:管件 |
| LTC4213 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:No RSENSE? Electronic Circuit Breaker |
| LTC4213CDDB | 制造商:LINER 制造商全稱:Linear Technology 功能描述:No RSENSE? Electronic Circuit Breaker |
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