參數資料
型號: LTC1647-2IS8#TRPBF
廠商: Linear Technology
文件頁數: 1/22頁
文件大小: 239K
描述: IC CONTROLLR HOTSWAP DUAL 8-SOIC
標準包裝: 2,500
類型: 熱交換控制器
應用: 通用
內部開關:
電源電壓: 2.7 V ~ 16.5 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)
供應商設備封裝: 8-SOIC
包裝: 帶卷 (TR)
LTC1647-1/
LTC1647-2/LTC1647-3
1
1647fa
TYPICAL APPLICATION
FEATURES
DESCRIPTION
Dual Hot Swap Controllers
The LTC
?/DIV>
1647-1/LTC1647-2/LTC1647-3 are dual Hot
Swap" controllers that permit a board to be safely inserted
and removed from a live backplane.
Using external N-channel MOSFETs, the board supply
voltages can be ramped up at a programmable rate. A high
side switch driver controls the MOSFET gates for supply
voltages ranging from 2.7V to 16.5V. A programmable
electronic circuit breaker protects against overloads and
shorts. The ON pins are used to control board power or
clear a fault.
The LTC1647-1 is a dual Hot Swap controller with a
common V
CC
 pin, separate ON pins and is available in an
SO-8 package. The LTC1647-2 is similar to the LTC1647-1
but combines a fault status flag with automatic retry at
the ON pins and is also available in the SO-8 package. The
LTC1647-3 has individual V
CC
 pins, ON pins and FAULT
status pins for each channel and is available in a 16-lead
narrow SSOP package.
Dual Motherboard Resident Hot Swap Controller
 APPLICATIONS
n
  Allows Safe Board Insertion and Removal from a 
Live Backplane
n
  Programmable Electronic Circuit Breaker
n
  FAULT Output Indication
n
  Programmable Supply Voltage Power-Up Rate
n
  High Side Drive for External MOSFET Switches
n
  Controls Supply Voltages from 2.7V to 16.5V
n
  Undervoltage Lockout
n
  Hot Board Insertion
n
  Electronic Circuit Breaker
n
  Portable Computer Device Bays
n
  Hot Plug Disk Drive
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. Hot Swap is a trademark of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
ON1
12V
SUPPLY
ON2
10nF
10nF
DDZ23*
10?/DIV>
20m?/DIV>
IRF7413
20m?/DIV>
IRF7413
C
LOAD
V
OUT1
(2.5A)
V
OUT2
(2.5A)
10?/DIV>
1647-1/2/3 TA01
V
CC
SENSE 1
ON1
ON2
GND
GATE 1
SENSE 2  GATE 2
LTC1647-1
+
DDZ23*
C
LOAD
+
*REQUIRED FOR V
CC
> 10V
10ms/DIV
V
ON
5V/DIV
V
OUT
5V/DIV
V
GATE
10V/DIV
1647-1/2/3 TA01a
ON/OFF Sequence
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