欢迎访问ic37.com |
会员登录 免费注册
发布采购

LT1641-2CS8 参数 Datasheet PDF下载

LT1641-2CS8图片预览
型号: LT1641-2CS8
PDF下载: 下载PDF文件 查看货源
内容描述: 正高电压热插拔控制器 [Positive High Voltage Hot Swap Controllers]
分类和应用: 电源电路电源管理电路光电二极管控制器
文件页数/大小: 12 页 / 171 K
品牌: LINER [ LINEAR TECHNOLOGY ]
 浏览型号LT1641-2CS8的Datasheet PDF文件第2页浏览型号LT1641-2CS8的Datasheet PDF文件第3页浏览型号LT1641-2CS8的Datasheet PDF文件第4页浏览型号LT1641-2CS8的Datasheet PDF文件第5页浏览型号LT1641-2CS8的Datasheet PDF文件第6页浏览型号LT1641-2CS8的Datasheet PDF文件第7页浏览型号LT1641-2CS8的Datasheet PDF文件第8页浏览型号LT1641-2CS8的Datasheet PDF文件第9页  
LT1641-1/LT1641-2
Positive High Voltage
Hot Swap Controllers
FEATURES
DESCRIPTIO
Allows Safe Board Insertion and Removal from a
Live Backplane
Controls Supply Voltage from 9V to 80V
Programmable Analog Foldback Current Limiting
High Side Drive for an External N-Channel
Latched Operation Mode (LT1641-1)
Automatic Retry (LT1641-2)
User Programmable Supply Voltage Power-Up Rate
Undervoltage Lockout
Overvoltage Protection
Both are available in 8-Lead SO Package
The LT
®
1641-1/LT1641-2 are 8-pin Hot Swap
TM
control-
lers that allow 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 programmable rate. A high side switch driver controls an
N-channel gate for supply voltages ranging from 9V to
80V.
The chips feature a programmable analog foldback cur-
rent limit circuit. If the chips remain in current limit for
more than a programmable time, the N-channel pass
transistor is either latched off (LT1641-1) or is set to
automatically restart after a time-out delay (LT1641-2).
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 available in the 8-lead SO
package.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
APPLICATIO S
Hot Board Insertion
Electronic Circuit Breaker
Industrial High Side Switch/Circuit Breaker
24V/48V Industrial/Alarm Systems
TYPICAL APPLICATIO
V
IN
24V
24V Input Voltage Application
R
S
0.01Ω
Q1
IRF530
V
OUT
SHORT
PIN
R1
49.9k
1%
R5
10Ω
5%
D1
CMPZ
5248B
C1
R6, 10nF
1k, 5%
R7
24k
5%
FB
LT1641-1/LT1641-2
R2
3.4k
1%
TIMER
C2
0.68µF
*DIODES, INC.
1641-1 TA01
R3
59k
1%
*SMAT70A
V
CC
ON
SENSE
GATE
R4
3.57k
1%
PWRGD
GND
GND
U
C
L
PWRGD
164112fc
U
U
1