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LTC4230IGN

Description
Triple Hot Swap Controller with Multifunction Current Control
CategoryPower/power management    The power supply circuit   
File Size379KB,36 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Parametric Compare View All

LTC4230IGN Overview

Triple Hot Swap Controller with Multifunction Current Control

LTC4230IGN Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?incompatible
MakerLinear ( ADI )
Parts packaging codeSSOP
package instructionSSOP, SSOP20,.25
Contacts20
Manufacturer packaging codeGN
Reach Compliance Code_compli
ECCN codeEAR99
Adjustable thresholdYES
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeR-PDSO-G20
JESD-609 codee0
length8.65 mm
Humidity sensitivity level1
Number of channels3
Number of functions1
Number of terminals20
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeSSOP
Encapsulate equivalent codeSSOP20,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)235
power supply1.8,2.5,3.3 V
Certification statusNot Qualified
Maximum seat height1.75 mm
Maximum supply voltage (Vsup)16.5 V
Minimum supply voltage (Vsup)2.7 V
Nominal supply voltage (Vsup)3.3 V
surface mountYES
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.635 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
width3.9116 mm
FEATURES
s
s
LTC4230
Triple Hot Swap Controller
with Multifunction Current Control
DESCRIPTIO
The LTC
®
4230 is a 3-channel Hot Swap
TM
controller that
allows a board to be safely inserted and removed from a
live backplane. Internal high side switch drivers control
the gates of external N-channel MOSFETs for supply
voltages ranging from 1.7V to 16.5V. The LTC4230 pro-
vides soft-start and inrush current limiting during the
programmable start-up period.
On-chip current limit comparators provide dual level
circuit breaker protection. The slow comparators trip at
V
CCn
– 50mV and activate in 10µs or are programmed by
an external filter capacitor. The fast comparators trip at
V
CCn
– 150mV and typically respond in 500ns.
Each FBn pin monitors its own output supply voltage and
signals its RESET pin. The ON pin turns the chip on and
off and can be used for a reset function. The LTC4230 also
provides additional functions including fault indication,
autoretry or latchoff modes, programmable current limit
response time based on the FAULT and FILTER pins’
functionality.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Hot Swap is a trademark of Linear Technology Corporation.
s
s
s
s
s
s
s
s
s
s
Allows Safe Board Insertion and Removal
from a Live Backplane
Controls Three Supply Voltages from 1.7V to 16.5V
with V
CC1
V
CC2
V
CC3
Programmable Soft-Start with Inrush Current
Limiting, No External Gate Capacitor Required
Faster Turn-Off Time with No Gate Capacitor
Dual Level Overcurrent Fault Protection
Programmable Overcurrent Response Time
Programmable Overvoltage Protection
Automatic Retry or Latched Mode Operation
Independent N-Channel FET High Side Drivers
User-Programmable Supply Voltage Power-Up Rate
FBn Pin Monitors V
OUTn
and Signals RESETn
Glitch Filter Eliminates Spurious RESETn Signals
APPLICATIO S
s
s
s
Electronic Circuit Breaker
Hot Board Insertion and Removal (Either On
Backplane or On Removable Card)
Industrial High Side Switch/Circuit Breaker
TYPICAL APPLICATIO
BACKPLANE
CONNECTOR
(FEMALE)
V
CC1
3.3V
V
CC2
2.5V
V
CC3
1.8V
PCB EDGE
CONNECTOR
(MALE)
LONG
LONG
LONG
Z1***
3-Channel Hot Swap Controller
R
SENSE1
0.007Ω
Q1
IRF7413
R
SENSE2
0.007Ω
Q2
IRF7413
R
SENSE3
0.007Ω
RX2
10Ω
Q3
IRF7413
V
OUT1
3.3V
5A
V
OUT2
2.5V
5A
V
OUT3
1.8V
5A
R8
5.1k
R9
12k
RESET 3
2
R10
11k
R11
12k
RESET 2
GND
RESET 1
TIMER
FILTER
FB1
10
19
9
R12
18k
R13
12k
4230 TA01
RX1
10Ω
CX1
100nF
RX3
10Ω
CX3
100nF
Z3***
CX2
100nF
Z2***
6
V
CC1
7
SENSE 1
8
GATE 1
16
V
CC2
17
SENSE 2
18
5
GATE 2 V
CC3
SENSE 3 GATE 3
FB3
1
PCB CONNECTION SENSE
SHORT
R1
10k
R2
10k
15
FAULT
GND
SHORT
LONG
13
14
12
11
* SYSTEM ON TIME: 6.2ms
**CIRCUIT BREAKER RESPONSE TIME: 19.5µs
***OPTIONAL
Z1, Z2, Z3: SMAJ10
C
TIMER
*
0.1µF
C
FILTER
**
15pF
LTC4230
ON
FAULT
U
U
U
4
3
R7
10k
RESET 3
FB2
20
R6
10k
R5
10k
RESET 2
RESET 1
4230f
1

LTC4230IGN Related Products

LTC4230IGN LTC4230CGN LTC4230
Description Triple Hot Swap Controller with Multifunction Current Control Triple Hot Swap Controller with Multifunction Current Control Triple Hot Swap Controller with Multifunction Current Control
Brand Name Linear Technology Linear Technology -
Is it Rohs certified? incompatible incompatible -
Maker Linear ( ADI ) Linear ( ADI ) -
Parts packaging code SSOP SSOP -
package instruction SSOP, SSOP20,.25 SSOP, SSOP20,.25 -
Contacts 20 20 -
Manufacturer packaging code GN GN -
Reach Compliance Code _compli _compli -
ECCN code EAR99 EAR99 -
Adjustable threshold YES YES -
Analog Integrated Circuits - Other Types POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT -
JESD-30 code R-PDSO-G20 R-PDSO-G20 -
JESD-609 code e0 e0 -
length 8.65 mm 8.65 mm -
Humidity sensitivity level 1 1 -
Number of channels 3 3 -
Number of functions 1 1 -
Number of terminals 20 20 -
Maximum operating temperature 85 °C 70 °C -
Package body material PLASTIC/EPOXY PLASTIC/EPOXY -
encapsulated code SSOP SSOP -
Encapsulate equivalent code SSOP20,.25 SSOP20,.25 -
Package shape RECTANGULAR RECTANGULAR -
Package form SMALL OUTLINE, SHRINK PITCH SMALL OUTLINE, SHRINK PITCH -
Peak Reflow Temperature (Celsius) 235 235 -
power supply 1.8,2.5,3.3 V 1.8,2.5,3.3 V -
Certification status Not Qualified Not Qualified -
Maximum seat height 1.75 mm 1.75 mm -
Maximum supply voltage (Vsup) 16.5 V 16.5 V -
Minimum supply voltage (Vsup) 2.7 V 2.7 V -
Nominal supply voltage (Vsup) 3.3 V 3.3 V -
surface mount YES YES -
technology CMOS CMOS -
Temperature level INDUSTRIAL COMMERCIAL -
Terminal surface Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) -
Terminal form GULL WING GULL WING -
Terminal pitch 0.635 mm 0.635 mm -
Terminal location DUAL DUAL -
Maximum time at peak reflow temperature 20 20 -
width 3.9116 mm 3.9116 mm -
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