參數(shù)資料
型號: LT1641IS8#TRPBF
廠商: Linear Technology
文件頁數(shù): 1/12頁
文件大?。?/td> 192K
描述: IC CONTRLR HOTSWAP POSVOLT 8SOIC
標準包裝: 2,500
類型: 熱交換控制器
應(yīng)用: 通用
內(nèi)部開關(guān):
電源電壓: 9 V ~ 80 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 8-SOIC
包裝: 帶卷 (TR)
1
LT1641
1641fd
Positive High Voltage
Hot Swap Controller
The LT
?/DIV>
1641 is an 8-pin Hot Swap
TM
 controller that allows
a board to be safely inserted and removed from a live
backplane. Using an external N-channel pass transistor,
the board supply voltage can be ramped up at a program-
mable rate. A high side switch driver controls an N-channel
gate for supply voltages ranging from 9V to 80V.
The chip features a programmable analog foldback cur-
rent limit circuit. If the chip remains in current limit for
more than a programmable time, the N-channel pass
transistor turns off and is optionally set to automatically
restart after a time-out delay.
The PWRGD output indicates when the output voltage,
sensed by the FB pin, is within tolerance. The ON pin
provides programmable undervoltage lockout.
The LT1641-1/LT1641-2 are recommended for new
designs.
The LT1641 is available in the 8-lead SO package.
?/DIV>
Hot Board Insertion
?/DIV>
Electronic Circuit Breaker
?/DIV>
Industrial High Side Switch/Circuit Breaker
?/DIV>
24V/48V Industrial/Alarm Systems
?/DIV>
Allows Safe Board Insertion and Removal from a
Live Backplane
?/DIV>
Controls Supply Voltage from 9V to 80V
?/DIV>
Programmable Analog Foldback Current Limiting
?/DIV>
High Side Drive for an External N-Channel
?/DIV>
Automatic Retry Capability
?/DIV>
User Programmable Supply Voltage Power-Up Rate
?/DIV>
Undervoltage Lockout
?/DIV>
Overvoltage Protection
?/DIV>
Available in 8-Lead SO Package
V
CC
TIMER
SENSE   GATE
D1
CMPZ
5248B
GND
PWRGD
PWRGD
FB
R5
10&
5%
ON
R1
49.9k
1%
*SMAT70A
*DIODES, INC.
V
IN
24V
SHORT
PIN
GND
1641 TA01
R2
3.4k
1%
C2
0.68礔
R
S
0.01&
10nF
R3
59k
1%
R4
3.57k
1%
R7
24k
5%
C
L
V
OUT
LT1641
Q1
IRF530
24V Input Voltage Automatic Restart Application
APPLICATIO S
FEATURES
TYPICAL APPLICATIO
DESCRIPTIO
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
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