參數(shù)資料
型號(hào): LTC1647-3IGN
廠商: LINEAR TECHNOLOGY CORP
元件分類: 電源管理
英文描述: Dual Hot Swap Controllers
中文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16
封裝: 0.150 INCH, PLASTIC, SSOP-16
文件頁數(shù): 1/20頁
文件大?。?/td> 249K
代理商: LTC1647-3IGN
LTC 1647-1/LTC 1647-2/LTC 1647-3
Dual Hot Swap C ontrollers
1
, LTC and LT are registered trademarks of Linear Technology Corporation.
Hot Swap is a trademark of Linear Technology Corporation.
The LTC
1647-1/LTC1647-2/LTC1647-3 are dual Hot
Swap
TM
controllers that permit a board to be safely in-
serted 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.
I
Hot Board Insertion
I
Electronic Circuit Breaker
I
Portable Computer Device Bays
I
Hot Plug Disk Drive
I
Allows Safe Board Insertion and Removal from a
Live Backplane
I
Programmable Electronic Circuit Breaker
I
FAULT Output Indication
I
Programmable Supply Voltage Power-Up Rate
I
High Side Drive for External MOSFET Switches
I
Controls Supply Voltages from 2.7V to 16.5V
I
Undervoltage Lockout
V
ID
Controller for Two Device Bays
V
CC
ON1
ON2
GND
SENSE 2
SENSE 1
1
2
3
4
8
6
C3
4.7nF
ON1
ON2
3.3V V
ID
SUPPLY
GATE 1
7
5
GATE 2
LTC1647-1
C
1394 PHY
AND/OR
USB PORT
DEVICE #1
C1
4.7nF
R2
10
R1
0.1
Q1
1/2 MMDF3N02HD
R5
0.1
Q2
1/2 MMDF3N02HD
R3**
R4**
C
LOAD
*
*
C
IS USER-SELECTED BASED
ON THE DEVICE REQUIREMENTS
** R3, R4, R7 AND R8 ARE OPTIONAL DISCHARGE
RESISTORS WHEN DEVICES ARE POWERED-OFF
Q1, Q2: ON SEMICONDUCTOR
R6
10
+
C
1394 PHY
AND/OR
USB PORT
DEVICE #2
1647-1/2/3 TA01
R7**
R8**
C
LOAD
*
+
5ms/DIV
2
1647-1/2/3 TA01a
V
ON
V
GATE
V
OUT
ON/OFF Sequence
APPLICATIO S
U
FEATURES
TYPICAL APPLICATIO
U
DESCRIPTIO
U
相關(guān)PDF資料
PDF描述
LTC1647 Low Power Timer 8-SO 0 to 70
LTC1647-1 Dual Hot Swap Controllers
LTC1647-1CS8 Low Power Timer 14-TSSOP 0 to 70
LTC1647-1IS8 Low Power Timer 14-TSSOP 0 to 70
LTC1647-2 Low Power Timer 14-TSSOP 0 to 70
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