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LTC1473IGN#TRPBF

Description
Current Limit SW 2-IN 2-OUT 4.75V to 30V Automotive 16-Pin SSOP N T/R
File Size198KB,16 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LTC1473IGN#TRPBF Overview

Current Limit SW 2-IN 2-OUT 4.75V to 30V Automotive 16-Pin SSOP N T/R

LTC1473IGN#TRPBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
Number of Inputs2
Number of Outputs2
Minimum Input Voltage (V)4.75
Maximum Input Voltage (V)30
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeIndustrial
PackagingTape and Reel
Pin Count16
Standard Package NameSOP
Supplier PackageSSOP N
MountingSurface Mount
Package Height1.5(Max)
Package Length4.98(Max)
Package Width3.99(Max)
PCB changed16
Lead ShapeGull-wing
LTC1473
Dual PowerPath
TM
Switch Driver
FEATURES
s
s
DESCRIPTIO
s
s
s
s
s
Power Path Management for Systems with Multiple
DC Sources
All N-Channel Switching to Reduce Power Losses and
System Cost
Switches and Isolates Sources Up to 30V
Adaptive High Voltage Step-Up Regulator for N-Channel
Gate Drive
Capacitor Inrush and Short-Circuit Current Limited
User-Programmable Timer to Limit Switch Dissipation
Small Footprint: 16-Pin Narrow SSOP
The LTC
®
1473 provides a power management solution for
single and dual battery notebook computers and other
portable equipment. The LTC1473 drives two sets of back-
to-back N-channel MOSFET switches to route power to the
input of the main system switching regulator. An internal
boost regulator provides the voltage to fully enhance the
logic level N-channel MOSFET switches.
The LTC1473 senses current to limit surge currents both
into and out of the batteries and the system supply
capacitor during switch-over transitions or during fault
conditions. A user-programmable timer monitors the time
the MOSFET switches are in current limit and latches them
off when the programmed time is exceeded.
A unique “2-diode mode” logic ensures system start-up
regardless of which input receives power first.
, LTC and LT are registered trademarks of Linear Technology Corporation.
PowerPath is a trademark of Linear Technology Corporation.
APPLICATIO S
s
s
s
s
s
Notebook Computers
Portable Instruments
Handi-Terminals
Portable Medical Equipment
Portable Industrial Control Equipment
TYPICAL APPLICATION
MBRD340
Si9926DY
BAT1
MMBD2838LTI
1
DCIN
FROM POWER
MANAGEMENT
µP
2
3
4
C
TIMER
4700pF
1µF
1µF
1mH*
5
6
7
8
MMBD914LTI
LTC1473
IN1
IN2
DIODE
TIMER
V
+
V
GG
SW
GND
GA1
SAB1
GB1
SENSE
16
15
14
R
SENSE
0.04Ω
INPUT OF SYSTEM
HIGH EFFICIENCY DC/DC
SWITCHING REGULATOR
(LTC1735, ETC)
+
13
SENSE
GA2
SAB2
GB2
12
11
10
9
C
OUT
BAT2
*COILCRAFT 1812LS-105XKBC
Si9926DY
1473 TA01
U
U
U
1

LTC1473IGN#TRPBF Related Products

LTC1473IGN#TRPBF LTC1473CGN#PBF LTC1473CGN#TRPBF LTC1473CGN LTC1473IGN#PBF LTC1473IGN#TR LTC1473IGN
Description Current Limit SW 2-IN 2-OUT 4.75V to 30V Automotive 16-Pin SSOP N T/R Current Limit SW 2-IN 2-OUT 4.75V to 30V 16-Pin SSOP N Tube Current Limit SW 2-IN 2-OUT 4.75V to 30V 16-Pin SSOP N T/R Current Limit SW 2-IN 2-OUT 4.75V to 30V 16-Pin SSOP N Current Limit SW 2-IN 2-OUT 4.75V to 30V Automotive 16-Pin SSOP N Tube Current Limit SW 2-IN 2-OUT 4.75V to 30V 16-Pin SSOP N T/R Current Limit SW 2-IN 2-OUT 4.75V to 30V 16-Pin SSOP N
EU restricts the use of certain hazardous substances Compliant Compliant Compliant Not Compliant Compliant Not Compliant Not Compliant
ECCN (US) EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Part Status Active Active Active Unconfirmed Active Unconfirmed Unconfirmed
Number of Inputs 2 2 2 2 2 2 2
Number of Outputs 2 2 2 2 2 2 2
Minimum Input Voltage (V) 4.75 4.75 4.75 4.75 4.75 4.75 4.75
Maximum Input Voltage (V) 30 30 30 30 30 30 30
Minimum Operating Temperature (°C) -40 - - - -40 -40 -40
Maximum Operating Temperature (°C) 85 70 70 70 85 85 85
Supplier Temperature Grade Industrial Commercial Commercial Commercial Industrial Industrial Industrial
Pin Count 16 16 16 16 16 16 16
Standard Package Name SOP SOP SOP SOP SOP SOP SOP
Supplier Package SSOP N SSOP N SSOP N SSOP N SSOP N SSOP N SSOP N
Mounting Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package Height 1.5(Max) 1.5(Max) 1.5(Max) 1.5(Max) 1.5(Max) 1.5(Max) 1.5(Max)
Package Length 4.98(Max) 4.98(Max) 4.98(Max) 4.98(Max) 4.98(Max) 4.98(Max) 4.98(Max)
Package Width 3.99(Max) 3.99(Max) 3.99(Max) 3.99(Max) 3.99(Max) 3.99(Max) 3.99(Max)
PCB changed 16 16 16 16 16 16 16
Lead Shape Gull-wing Gull-wing Gull-wing Gull-wing Gull-wing Gull-wing Gull-wing
Packaging Tape and Reel Tube Tape and Reel - Tube Tape and Reel -
HTS - - 8542.39.00.01 8542.39.00.01 - 8542.39.00.01 8542.39.00.01
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