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LTC4211CMS8#TRPBF

Description
IC CONTROLLER HOT SWAP 8-MSOP
CategoryPower/power management    The power supply circuit   
File Size431KB,40 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
Download Datasheet Parametric View All

LTC4211CMS8#TRPBF Overview

IC CONTROLLER HOT SWAP 8-MSOP

LTC4211CMS8#TRPBF Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?conform to
MakerLinear ( ADI )
Parts packaging codeMSOP
package instructionTSSOP, TSSOP8,.19
Contacts8
Manufacturer packaging codeMS8
Reach Compliance Codecompliant
ECCN codeEAR99
Adjustable thresholdYES
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeS-PDSO-G8
JESD-609 codee3
length3 mm
Humidity sensitivity level1
Number of channels1
Number of functions1
Number of terminals8
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTSSOP8,.19
Package shapeSQUARE
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
power supply5 V
Certification statusNot Qualified
Maximum seat height1.1 mm
Maximum supply current (Isup)1.5 mA
Maximum supply voltage (Vsup)16.5 V
Minimum supply voltage (Vsup)2.5 V
Nominal supply voltage (Vsup)5 V
surface mountYES
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width3 mm
Base Number Matches1
LTC4211
Hot Swap Controller with
Multifunction Current Control
FEATURES
n
n
n
DESCRIPTION
The
LTC
®
4211
is a hot swap 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 supply voltages ranging
from 2.5V to 16.5V. The LTC4211 provides soft-start and
inrush current limiting during the start-up period which
has a programmable duration.
Two on-chip current limit comparators provide dual level
overcurrent circuit breaker protection. The slow com-
parator trips at V
CC
– 50mV and activates in 20µs (or is
programmed by an external filter capacitor, MS only).
The fast comparator trips at V
CC
– 150mV and typically
responds in 300ns.
The FB pin monitors the output supply voltage and signals
the
RESET
output pin. The ON pin signal turns the chip on
and off and can also be used for the reset function. The
MS package has
FAULT
and FILTER pins to provide addi-
tional functions like fault indication, autoretry or latch-off
modes, programmable current limit response time and
programmable overvoltage protection using an external
Zener diode clamp.
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
n
n
n
n
n
n
n
n
n
Allows Safe Board Insertion and Removal
from a Live Backplane
Controls Supply Voltages from 2.5V to 16.5V
Programmable Soft-Start with Inrush Current
Limiting, No External Gate Capacitor Required
Faster Turn-Off Time Because No External Gate
Capacitor is Required
Dual Level Overcurrent Fault Protection
Programmable Response Time for Overcurrent
Protection (MS)
Programmable Overvoltage Protection (MS)
Automatic Retry or Latched Mode Operation (MS)
High Side Drive for an External N-Channel FET
User-Programmable Supply Voltage Power-Up Rate
FB Pin Monitors V
OUT
and Signals
RESET
Glitch Filter Protects Against Spurious
RESET
Signal
APPLICATIONS
n
n
n
Electronic Circuit Breaker
Hot Board Insertion and Removal (Either On
Backplane or On Removable Card)
Industrial High Side Switch/Circuit Breaker
TYPICAL APPLICATION
Single Channel 5V Hot Swap Controller
BACKPLANE PCB EDGE
CONNECTOR CONNECTOR
(FEMALE)
(MALE)
V
CC
5V
LONG
Z1*
R
X
10
C
X
100nF
R
SENSE
0.007
M1
Si4410DY
Power-Up Sequence
NO C
LOAD
+
8
V
CC
7
SENSE
6
GATE
FB
5
R3
36k
R4
15k
RESET
TIMER
GND
C
TIMER
10nF
4
3
1
C
LOAD
R5
10k
µP
LOGIC
RESET
V
OUT
5V
5A
V
GATE
5V/DIV
V
RESET
5V/DIV
SHORT
R1
20k
R2
10k
2
ON
LTC4211
V
ON
1V/DIV
V
TIMER
1V/DIV
2.5ms/DIV
4211 TA01b
GND
PCB CONNECTION SENSE
LONG
Z1 = 1SMA10A OR SMAJ10A
* OPTIONAL
GND
4211 TA01A
4211fc
For more information
www.linear.com/LTC4211
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