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LTC1644CGN#TRPBF

Description
IC CONTROLLER HOT SWAP 20-SSOP
CategoryPower/power management    The power supply circuit   
File Size440KB,24 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
Download Datasheet Parametric Compare View All

LTC1644CGN#TRPBF Overview

IC CONTROLLER HOT SWAP 20-SSOP

LTC1644CGN#TRPBF Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?conform to
MakerLinear ( ADI )
Parts packaging codeSSOP
package instructionSSOP, SSOP20,.25
Contacts20
Manufacturer packaging codeGN
Reach Compliance Codecompliant
ECCN codeEAR99
Other featuresIT ALSO REQUIRES A -12V SUPPLY
Adjustable thresholdNO
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeR-PDSO-G20
JESD-609 codee3
length8.65 mm
Humidity sensitivity level1
Nominal Negative Supply Voltage (Vsup)-12 V
Number of channels4
Number of functions1
Number of terminals20
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialPLASTIC/EPOXY
encapsulated codeSSOP
Encapsulate equivalent codeSSOP20,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
power supply+-12 V
Certification statusNot Qualified
Maximum seat height1.75 mm
Maximum supply current (Isup)8 mA
Maximum supply voltage (Vsup)12.6 V
Minimum supply voltage (Vsup)11.4 V
Nominal supply voltage (Vsup)12 V
surface mountYES
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch0.635 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width3.9116 mm
FEATURES
s
s
s
LTC1644
CompactPCI Bus
Hot Swap Controller
DESCRIPTIO
The LTC
®
1644 is a Hot Swap
TM
controller that allows a board
to be safely inserted and removed from a CompactPCI bus
slot. External N-channel transistors control the 3.3V/5V
supplies, while on-chip switches control the
–12V and 12V supplies. The 3.3V and 5V supplies can be
ramped up at a programmable rate. Electronic circuit break-
ers protect all four supplies against overcurrent faults. The
PWRGD output indicates when all of the supply voltages are
within tolerance. The OFF/ON pin is used to cycle the board
power or reset the circuit breaker. The PRECHARGE output
can be used to bias the bus I/O pins during card insertion
and extraction. PCI_RST# is combined on-chip with
HEALTHY# in order to generate LOCAL_PCI_RST#.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Hot Swap is a trademark of Linear Technology Corporation.
CompactPCI is a trademark of the PCI Industrial Computer Manufacturers Group.
s
s
s
s
Allows Safe Board Insertion and Removal from a
Live, CompactPCI
TM
Bus
Controls –12V, 3.3V, 5V and 12V Supplies
Adjustable Foldback Current Limit with Circuit
Breaker
Dual-Level Circuit Breakers Protect 5V and 3.3V
Supplies from Overcurrent and Short-Circuit Faults
LOCAL_PCI_RST# Logic On-Chip
PRECHARGE Output Biases I/O Pins During Card
Insertion and Extraction
Adjustable Supply Voltage Power-Up Rate
APPLICATIO S
s
Hot Board Insertion into CompactPCI Bus
TYPICAL APPLICATIO
BACKPLANE
CONNECTOR
5V
LONG 5V
3.3V
PCB EDGE
BACKPLANE
CONNECTOR
C8
0.1µF
PER 10
POWER
PINS
C9
0.1µF
PER 10
POWER
PINS
R22 2.74Ω
3V
IN
*
R21 1.74Ω
Z3
5V
IN
*
R1
0.005Ω
Q1
IRF7413
R2
0.007Ω
LONG 3.3V
C6
0.01µF
C7
0.01µF
Z4
R3
10Ω
17
3V
IN
16
15
18
3V
OUT
13
5V
IN
3V
SENSE
GATE
5V
SENSE
Z1
12V
–12V
Z2
1
2
5V
IN
R20 1.2k
R19
1k
5
6
R18
2k
7
9
12V
IN
V
EEIN
OFF/ON
FAULT
PWRGD
RESETIN
GND
PRECHARGE
12
R10
18Ω 5%
R11
51k
C3 4.7nF
R12
51k
R9
24Ω
1V
±10%
Q3
MMBT2222A
DRIVE
11
LTC1644
20-PIN SSOP
BD_SEL#
EARLY V(I/O)
R17
2k
HEALTHY#
PCI_RST#
R15
1Ω
C4
0.01µF
GROUND
I/O DATA LINE 1
R16
1Ω
C5
0.01µF
TIMER
4
C2
0.1µF
R6
2k
3V
OUT
RESETOUT
10
8
R8 1k
3V
IN
R7
12Ω
I/O #1
I/O #128
1644 F01
R13 10Ω
RESET#
PCI
BRIDGE
CHIP
I/O PIN 1
I/O PIN 128
I/O DATA LINE 128
Z1, Z2: SMAJ12CA
R14 10Ω
*5V
IN
AND 3V
IN
MAY BE USED AS SOURCES OF EARLY POWER
Z3, Z4: 1PMT5.0AT3
Figure 1
1644f
+
U
U
U
Q2
IRF7413
+
C
LOAD(5VOUT)
5V
OUT
5V AT 5.7A
3V
OUT
3.3V AT 8A
+
R4
10Ω
14
3
5V
OUT
12V
OUT
20
R5
1k
C
LOAD(3VOUT)
C1
0.047µF
+
C
LOAD(12VOUT)
19
C
LOAD(VEEOUT)
12V
OUT
12V AT 500mA
V
EEOUT
V
EEOUT
–12V AT 100mA
• • •
• • •
• • •
1

LTC1644CGN#TRPBF Related Products

LTC1644CGN#TRPBF LTC1644CGN#TR LTC1644IGN#TR LTC1644CGN#PBF LTC1644IGN#TRPBF LTC1644IGN#pbf
Description IC CONTROLLER HOT SWAP 20-SSOP IC controller hot swap 20-ssop IC controller hot swap 20-ssop IC CONTROLLER HOT SWAP 20-SSOP IC CONTROLLER HOT SWAP 20-SSOP CompactPCI bus hot-swappable controller
Brand Name Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology
Is it Rohs certified? conform to incompatible incompatible conform to conform to conform to
Maker Linear ( ADI ) Linear ( ADI ) Linear ( ADI ) Linear ( ADI ) Linear ( ADI ) Linear ( ADI )
Parts packaging code SSOP SSOP SSOP SSOP SSOP SSOP
package instruction SSOP, SSOP20,.25 SSOP, SSOP20,.25 SSOP, SSOP20,.25 SSOP, SSOP20,.25 SSOP, SSOP20,.25 SSOP, SSOP20,.25
Contacts 20 20 20 20 20 20
Manufacturer packaging code GN GN GN GN GN GN
Reach Compliance Code compliant _compli _compli compliant compliant compliant
ECCN code EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Other features IT ALSO REQUIRES A -12V SUPPLY IT ALSO REQUIRES A -12V SUPPLY IT ALSO REQUIRES A -12V SUPPLY IT ALSO REQUIRES A -12V SUPPLY IT ALSO REQUIRES A -12V SUPPLY IT ALSO REQUIRES A -12V SUPPLY
Adjustable threshold NO NO NO NO NO NO
Analog Integrated Circuits - Other Types POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code R-PDSO-G20 R-PDSO-G20 R-PDSO-G20 R-PDSO-G20 R-PDSO-G20 R-PDSO-G20
JESD-609 code e3 e0 e0 e3 e3 e3
length 8.65 mm 8.65 mm 8.65 mm 8.65 mm 8.65 mm 8.65 mm
Humidity sensitivity level 1 1 1 1 1 1
Nominal Negative Supply Voltage (Vsup) -12 V -12 V -12 V -12 V -12 V -12 V
Number of channels 4 4 4 4 4 4
Number of functions 1 1 1 1 1 1
Number of terminals 20 20 20 20 20 20
Maximum operating temperature 70 °C 70 °C 85 °C 70 °C 85 °C 85 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code SSOP SSOP SSOP SSOP SSOP SSOP
Encapsulate equivalent code SSOP20,.25 SSOP20,.25 SSOP20,.25 SSOP20,.25 SSOP20,.25 SSOP20,.25
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE, SHRINK PITCH SMALL OUTLINE, SHRINK PITCH SMALL OUTLINE, SHRINK PITCH SMALL OUTLINE, SHRINK PITCH SMALL OUTLINE, SHRINK PITCH SMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius) 260 235 235 260 250 260
power supply +-12 V +-12 V +-12 V +-12 V +-12 V +-12 V
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height 1.75 mm 1.75 mm 1.75 mm 1.75 mm 1.75 mm 1.75 mm
Maximum supply current (Isup) 8 mA 8 mA 8 mA 8 mA 8 mA 8 mA
Maximum supply voltage (Vsup) 12.6 V 12.6 V 12.6 V 12.6 V 12.6 V 12.6 V
Minimum supply voltage (Vsup) 11.4 V 11.4 V 11.4 V 11.4 V 11.4 V 11.4 V
Nominal supply voltage (Vsup) 12 V 12 V 12 V 12 V 12 V 12 V
surface mount YES YES YES YES YES YES
technology CMOS CMOS CMOS CMOS CMOS CMOS
Temperature level COMMERCIAL COMMERCIAL INDUSTRIAL COMMERCIAL INDUSTRIAL INDUSTRIAL
Terminal surface Matte Tin (Sn) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn)
Terminal form GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING
Terminal pitch 0.635 mm 0.635 mm 0.635 mm 0.635 mm 0.635 mm 0.635 mm
Terminal location DUAL DUAL DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature 30 20 20 30 NOT SPECIFIED 30
width 3.9116 mm 3.9116 mm 3.9116 mm 3.9116 mm 3.9116 mm 3.9116 mm
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