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LTC4210-4IS6 Datasheet(PDF) 1 Page - Linear Technology

Part # LTC4210-4IS6
Description  Hot Swap Controller in 6-Lead SOT-23 Package
Download  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4210-4IS6 Datasheet(HTML) 1 Page - Linear Technology

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1
LTC4210-3/LTC4210-4
421034fa
APPLICATIO S
DESCRIPTIO
FEATURES
TYPICAL APPLICATIO
The LTC
®4210-3/LTC4210-4 is a 6-pin SOT-23 Hot SwapTM
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 a supply voltage ranging from 2.7V to 7V. The
LTC4210 provides the initial timing cycle and allows the
GATE to be ramped up at an adjustable rate.
The LTC4210 features a fast current limit loop providing
active current limiting together with a circuit breaker
timer. The signal at the ON pin turns the part on and off and
is also used for the reset function.
The LTC4210-3 retries on overcurrent fault and the
LTC4210-4 latches off on an overcurrent fault.
Allows Safe Board Insertion and Removal
from a Live Backplane
Adjustable Analog Current Limit
with Circuit Breaker
Fast Response Limits Peak Fault Current
Automatic Retry or Latch Off On Current Fault
Adjustable Supply Voltage Power-Up Rate
High Side Drive for External MOSFET Switch
Controls Supply Voltages from 2.7V to 7V
Undervoltage Lockout
Adjustable Overvoltage Protection
Low Profile (1mm) SOT-23 (ThinSOT
TM) Package
Hot Board Insertion
Electronic Circuit Breaker
Industrial High Side Switch/Circuit Breaker
Hot Swap Controller in
6-Lead SOT-23 Package
Single Channel 5V Hot Swap Controller
Power-Up Sequence
+
VCC
SENSE
LTC4210-3
470
µF
VOUT
5V
4A
GND
4210 TA01
100
GATE
GND
TIMER
ON
SHORT
LONG
VIN
5V
GND
LONG
Z1: ISMA10A OR SMAJ10A
10k
20k
10
RSENSE
0.01
PCB EDGE
CONNECTOR
(MALE)
Q1
Si4410DY
Z1
OPTIONAL
100
0.22
µF
0.1
µF
0.01
µF
BACKPLANE
CONNECTOR
(FEMALE)
4210 TA02
10ms/DIV
IOUT
(0.5A/DIV)
VOUT
(5V/DIV)
VON
(2V/DIV)
VTIMER
(1V/DIV)
CLOAD = 470µF
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
ThinSOT and Hot Swap are trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.


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