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LTC4211CMS

Description
Hot Swap Controller with Multifunction Current Control
CategoryPower/power management    The power supply circuit   
File Size229KB,12 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Parametric Compare View All

LTC4211CMS Overview

Hot Swap Controller with Multifunction Current Control

LTC4211CMS Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?incompatible
Parts packaging codeMSOP
package instructionTSSOP, TSSOP10,.19,20
Contacts10
Manufacturer packaging codeMS
Reach Compliance Code_compli
ECCN codeEAR99
Adjustable thresholdYES
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeS-PDSO-G10
JESD-609 codee0
length3 mm
Humidity sensitivity level1
Number of channels1
Number of functions1
Number of terminals10
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTSSOP10,.19,20
Package shapeSQUARE
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)235
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 surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.5 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
width3 mm
Base Number Matches1
LT4250L/LT4250H
Negative 48V
Hot Swap Controller
FEATURES
s
s
DESCRIPTIO
s
s
s
s
s
s
s
Allows Safe Board Insertion and Removal
from a Live – 48V Backplane
Circuit Breaker Immunity to Voltage Steps and
Current Spikes
Programmable Inrush and
Short-Circuit Current Limits
Pin Compatible with LT1640L/LT1640H
Operates from –20V to – 80V
Programmable Overvoltage Protection
Programmable Undervoltage Lockout
Power Good Control Output
Bell-Core Compatible ON/OFF Threshold
APPLICATIO S
s
s
s
The LT
®
4250L/LT4250H are 8-pin, negative 48V Hot Swap
TM
controllers that allow a board to be safely inserted and
removed from a live backplane. Inrush current is limited to
a programmable value by controlling the gate voltage of an
external N-channel pass transistor. The pass transistor is
turned off if the input voltage is less than the program-
mable undervoltage threshold or greater than the over-
voltage threshold. A programmable current limit protects
the system against shorts. After a 500µs timeout the
current limit activates the electronic circuit breaker. The
PWRGD (LT4250L) or PWRGD (LT4250H) signal can be
used to directly enable a power module. The LT4250L is
designed for modules with a low enable input and the
LT4250H for modules with a high enable input.
The LT4250L/LT4250H are available in 8-pin PDIP and SO
packages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Hot Swap is a trademark of Linear Technology Corporation.
Central Office Switching
– 48V Distributed Power Systems
Negative Power Supply Control
TYPICAL APPLICATIO
–48V RTN
(SHORT PIN)
–48V RTN
R4
549k
1%
3
R5
6.49k
1%
R6
10k
1%
UV
8
V
DD
1
UV =
38.5V
UV
RELEASE
AT 43V
OV =
71V
LT4250L
2
OV
V
EE
4
SENSE
5
GATE
6
R3
1k, 5%
PWRGD
DRAIN
7
V
EE
AND
DRAIN
20V/DIV
*
–48V
INPUT 1
0.1µF
10V
R1
0.02Ω
5%
C1
470nF
25V
R2
10Ω
5%
C2
15nF
100V
2
ON/OFF
9
V
OUT+
8
SENSE
+
7
TRIM
6
SENSE
4
5
V
OUT–
V
IN–
1
V
IN+
LUCENT
JW050A1-E
I
D
(Q1)
5A/DIV
Q1
IRF530
–48V
INPUT 2
* DIODES INC. SMAT70A
THESE COMPONENTS ARE APPLICATION
SPECIFIC AND MUST BE SELECTED BASED
UPON OPERATING CONDITIONS AND DESIRED
PERFORMANCE. SEE APPLICATIONS
INFORMATION.
C3
0.1µF
100V
5V
+
C4
100µF
100V
+
C5
100µF
16V
4250 TA01
U
Voltage Step On Input Supply
500µs/DIV
4250lhf
U
U
1

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Description Hot Swap Controller with Multifunction Current Control Hot Swap Controller with Multifunction Current Control Hot Swap Controller with Multifunction Current Control Hot Swap Controller with Multifunction Current Control Hot Swap Controller with Multifunction Current Control Hot Swap Controller with Multifunction Current Control
Brand Name Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology
Is it Rohs certified? incompatible incompatible incompatible incompatible incompatible incompatible
Parts packaging code MSOP MSOP SOIC MSOP MSOP SOIC
package instruction TSSOP, TSSOP10,.19,20 TSSOP, TSSOP8,.19 SOP, SOP8,.25 TSSOP, TSSOP10,.19,20 TSSOP, TSSOP8,.19 SOP, SOP8,.25
Contacts 10 8 8 10 8 8
Manufacturer packaging code MS MS8 S8 MS MS8 S8
Reach Compliance Code _compli _compli _compli _compli _compli _compli
ECCN code EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Adjustable threshold YES YES YES YES YES YES
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 S-PDSO-G10 S-PDSO-G8 R-PDSO-G8 S-PDSO-G10 S-PDSO-G8 R-PDSO-G8
JESD-609 code e0 e0 e0 e0 e0 e0
length 3 mm 3 mm 4.9025 mm 3 mm 3 mm 4.9025 mm
Humidity sensitivity level 1 1 1 1 1 1
Number of channels 1 1 1 1 1 1
Number of functions 1 1 1 1 1 1
Number of terminals 10 8 8 10 8 8
Maximum operating temperature 70 °C 70 °C 70 °C 85 °C 85 °C 85 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code TSSOP TSSOP SOP TSSOP TSSOP SOP
Encapsulate equivalent code TSSOP10,.19,20 TSSOP8,.19 SOP8,.25 TSSOP10,.19,20 TSSOP8,.19 SOP8,.25
Package shape SQUARE SQUARE RECTANGULAR SQUARE SQUARE RECTANGULAR
Package form SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE
Peak Reflow Temperature (Celsius) 235 235 235 235 235 235
power supply 5 V 5 V 5 V 5 V 5 V 5 V
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height 1.1 mm 1.1 mm 1.752 mm 1.1 mm 1.1 mm 1.752 mm
Maximum supply current (Isup) 1.5 mA 1.5 mA 1.5 mA 1.5 mA 1.5 mA 1.5 mA
Maximum supply voltage (Vsup) 16.5 V 16.5 V 16.5 V 16.5 V 16.5 V 16.5 V
Minimum supply voltage (Vsup) 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V
Nominal supply voltage (Vsup) 5 V 5 V 5 V 5 V 5 V 5 V
surface mount YES YES YES YES YES YES
technology CMOS CMOS CMOS CMOS CMOS CMOS
Temperature level COMMERCIAL COMMERCIAL COMMERCIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL
Terminal surface Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
Terminal form GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING
Terminal pitch 0.5 mm 0.65 mm 1.27 mm 0.5 mm 0.65 mm 1.27 mm
Terminal location DUAL DUAL DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature 20 20 20 20 20 20
width 3 mm 3 mm 3.899 mm 3 mm 3 mm 3.899 mm
Base Number Matches 1 1 1 1 1 1
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