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LTC4414EMS8#TR

Description
LTC4414 - 36V, Low Loss PowerPath Controller for Large PFETs; Package: MSOP; Pins: 8; Temperature Range: -40°C to 85°C
CategoryPower/power management    The power supply circuit   
File Size149KB,12 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Parametric Compare View All

LTC4414EMS8#TR Overview

LTC4414 - 36V, Low Loss PowerPath Controller for Large PFETs; Package: MSOP; Pins: 8; Temperature Range: -40°C to 85°C

LTC4414EMS8#TR Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?incompatible
MakerLinear ( ADI )
Parts packaging codeMSOP
package instructionTSSOP, TSSOP8,.19
Contacts8
Manufacturer packaging codeMS8
Reach Compliance Codenot_compliant
ECCN codeEAR99
Adjustable thresholdNO
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeS-PDSO-G8
JESD-609 codee0
length3 mm
Humidity sensitivity level1
Number of channels1
Number of functions1
Number of terminals8
Maximum operating temperature85 °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)235
power supply12 V
Certification statusNot Qualified
Maximum seat height1.1 mm
Maximum supply voltage (Vsup)36 V
Minimum supply voltage (Vsup)3 V
Nominal supply voltage (Vsup)12 V
surface mountYES
technologyCMOS
Temperature levelOTHER
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
width3 mm
LTC4414
36V, Low Loss PowerPath
TM
Controller for Large PFETs
DESCRIPTIO
The LTC
®
4414 controls an external P-channel MOSFET to
create a near ideal diode function for power switchover.
This permits highly efficient OR’ing of multiple power
sources for extended battery life and low self- heating. When
conducting, the voltage drop across the MOSFET is typi-
cally 20mV. For applications with a wall adapter or other aux-
iliary power source, the load is automatically disconnected
from the battery when the auxiliary source is connected.
Two or more LTC4414s may be interconnected to allow
switchover between multiple batteries or charging of mul-
tiple batteries from a single charger.
The wide supply operating range supports operation from
one to eight Li-Ion cells in series. The low quiescent
current (30µA typical) is independent of the load current.
The gate driver includes an internal voltage clamp for
MOSFET protection.
The STAT pin can be used to enable an auxiliary P-channel
MOSFET power switch when an auxiliary supply is
detected. This pin may also be used to indicate to a micro-
controller that an auxiliary supply is connected. The con-
trol (CTL) input enables the user to force the primary
MOSFET off and the STAT pin low.
The LTC4414 is available in a low profile 8-lead MSOP
package.
FEATURES
Designed Specifically to Drive Large Q
G
PFETs
Very Low Loss Replacement for Power Supply
OR’ing Diodes
3.5V to 36V AC/DC Adapter Voltage Range
Minimal External Components
Automatic Switching Between DC Sources
Low Quiescent Current: 30µA
3V to 36V Battery Voltage Range
Limited Reverse Battery Protection
MOSFET Gate Protection Clamp
Manual Control Input
Space Saving 8-Lead MSOP Package
APPLICATIO S
High Current Power Path Switch
Industrial and Automotive Applications
Uninterruptable Power Supplies
Logic Controlled Power Switch
Battery Backup Systems
Emergency Systems with Battery Backups
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
PowerPath and ThinSOT are trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
TYPICAL APPLICATIO
UPS840
LTC4414 vs Schottky Diode Forward Voltage Drop
Automatic Switchover of Load Between a Battery and a Power Supply
POWER
SUPPLY
INPUT
BATTERY
CELL(S)
8.0
CONSTANT
R
ON
TO LOAD
LTC4414
V
IN
SENSE
GND
CTL
NC
GATE
STAT
NC
C
OUT
V
CC
470k
4414
TA01
CURRENT (A)
SUP75P03_07
3.6
LTC4414
CONSTANT
VOLTAGE
STATUS OUTPUT
LOW WHEN POWER
SUPPLY PRESENT
0
0.02
U
U
U
SCHOTTKY
DIODE
0.5
FORWARD VOLTAGE (V)
4414 TA01b
4414fc
1

LTC4414EMS8#TR Related Products

LTC4414EMS8#TR LTC4414IMS8#TR
Description LTC4414 - 36V, Low Loss PowerPath Controller for Large PFETs; Package: MSOP; Pins: 8; Temperature Range: -40°C to 85°C LTC4414 - 36V, Low Loss PowerPath Controller for Large PFETs; Package: MSOP; Pins: 8; Temperature Range: -40°C to 85°C
Brand Name Linear Technology Linear Technology
Is it Rohs certified? incompatible incompatible
Maker Linear ( ADI ) Linear ( ADI )
Parts packaging code MSOP MSOP
package instruction TSSOP, TSSOP8,.19 TSSOP, TSSOP8,.19
Contacts 8 8
Manufacturer packaging code MS8 MS8
Reach Compliance Code not_compliant not_compliant
ECCN code EAR99 EAR99
Adjustable threshold NO NO
Analog Integrated Circuits - Other Types POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code S-PDSO-G8 S-PDSO-G8
JESD-609 code e0 e0
length 3 mm 3 mm
Humidity sensitivity level 1 1
Number of channels 1 1
Number of functions 1 1
Number of terminals 8 8
Maximum operating temperature 85 °C 125 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code TSSOP TSSOP
Encapsulate equivalent code TSSOP8,.19 TSSOP8,.19
Package shape SQUARE SQUARE
Package form SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius) 235 235
power supply 12 V 12 V
Certification status Not Qualified Not Qualified
Maximum seat height 1.1 mm 1.1 mm
Maximum supply voltage (Vsup) 36 V 36 V
Minimum supply voltage (Vsup) 3 V 3 V
Nominal supply voltage (Vsup) 12 V 12 V
surface mount YES YES
technology CMOS CMOS
Temperature level OTHER AUTOMOTIVE
Terminal surface Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
Terminal form GULL WING GULL WING
Terminal pitch 0.65 mm 0.65 mm
Terminal location DUAL DUAL
Maximum time at peak reflow temperature 20 20
width 3 mm 3 mm
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