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LTC1478CSTRPBF, LTC1479, LTC1479CGTRPBF

Table of contents:
Info of LTC1478CSTRPBF
Info of LTC1479
Info of LTC1479CGTRPBF

LTC1478CSTRPBF, LTC1479, LTC1479CGTRPBF Selling Leads, Datasheet

MFG:N/A Package Cooled:NA/ D/C:09+

LTC1478CSTRPBF, LTC1479, LTC1479CGTRPBF Picture

LTC1478CSTRPBF, LTC1479, LTC1479CGTRPBF Datasheet download

Five Points

Part Number: LTC1478CSTRPBF

MFG: N/A

Package Cooled: NA/

D/C: 09+

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LTC1479 General Description

The LTC^®1479 is the "heart" of a total power management olution for single and dual battery notebook computers nd other portable equipment. The LTC1479 directs power rom up to two battery packs and a DC power source to the nput of the main system switching regulator. It works in oncert with related LTC power management products e.g. LTC1435, LT^®1511, etc.) to create a total system olution; starting from the batteries and the DC power ource, and ending at the input of each of the computer's omplex loads. A system-provided power management P monitors and actively directs the LTC1479.

The LTC1479 uses low loss N-channel MOSFET switches o direct power from three main sources. An adaptive urrent limiting scheme reduces capacitor and battery nrush current by controlling the gates of the MOSFET witches during transitions. The LTC1479 interfaces directly o the LT1510, LT1511 and LT1620/LTC1435 battery harging circuits.

LTC1479 Maximum Ratings

DCIN, BAT1, BAT2 Supply Voltages ......... 0.3V to 32V
SENSE ^+, SENSE^, V_BAT, V ⁺ ................... 0.3V to 32V
GA, GB, GC, GD, GE, GF, GG, GH .............. 0.3V to 42V
SAB, SCD, SEF, SG, SH ............................ 0.3V to 32V
SW, V_GG.................................................. 0.3V to 42V
DCDIV, BDIV ........................................... 0.3V to 5.5V
All Logic Inputs (Note 1).......................... 0.3V to 7.5V
All Logic Outputs (Note 1) ...................... 0.3V to 7.5V
V_CC Regulator Output Current ............................... 1mA
V_CCP Regulator Output Current .............................. 1mA
V⁺ Output Current ................................................. 1mA
V_GG Regulator Output Current ............................ 100A
Operating Temperature
LTC1479CG ............................................. 0°C to 70°C
LTC1479IG ........................................ 40°C to 85°C
Junction Temperature......................................... 125°C
Storage Temperature Range ............ 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................ 300°C

LTC1479 Features

`Complete Power Path Management for Two atteries, DC Power Source, Charger and Backup
`Compatible with Li-Ion, NiCd, NiMH and Lead-Acid attery Chemistries
`"3-Diode" Mode Ensures Powers is Available nder "Cold Start" Conditions
`All N-Channel Switching Reduces Power Losses
`Capacitor and Battery Inrush Current Limited
`"Seamless" Switching Between Power Sources
`Independent Charging and Monitoring of Two attery Packs
`New, Small Footprint, 36-Lead SSOP Package

LTC1479 Typical Application

· Notebook Computer Power Management
· Portable Instruments
· Handheld Terminals
·Portable Medical Equipment
· Portable Industrial Control Equipment

LTC1479 Connection Diagram

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