Datasheet Linear Technology LTC4098 — Даташит

Производитель	Linear Technology
Серия	LTC4098

USB-совместимые импульсные устройства управления питанием/литий-ионные зарядные устройства с защитой от перенапряжения

Datasheets

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PDF, 459 Кб, Версия: C, Файл закачен: 22 окт 2017

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Цены

Купить LTC4098 на РадиоЛоцман.Цены — от 4.72 до 771 ₽ 34 предложений от 18 поставщиков Media Players 4.35V to 5.5V Automotive 20-Pin UTQFN EP / IC CHARGER USB COMP 20-UTQFN
727GS Весь мир	LTC4098EPDC#PBF Linear Technology	от 4.72 ₽
IC Home Весь мир	LTC4098EUDC#TRPBF Analog Devices	328 ₽
TradeElectronics Россия	LTC4098EPDC-TRPBF	по запросу
МосЧип Россия	LTC4098EUDC#PBF Linear Technology	по запросу

Корпус / Упаковка / Маркировка

	LTC4098EUDC#PBF	LTC4098EUDC#TRPBF
N	1	2
Корпус	3x4 QFN-20 Габаритный чертеж корпуса	3x4 QFN-20 Габаритный чертеж корпуса
Код корпуса	UDC	UDC
Индекс корпуса	05-08-1742	05-08-1742
Количество выводов	20	20

Параметры

Parameters / Models	LTC4098EUDC#PBF	LTC4098EUDC#TRPBF
Battery Chemistry	Li-Ion, Li-Polymer	Li-Ion, Li-Polymer
Demo Boards	DC1284A,DC1303A,DC1394A,DC1395A	DC1284A,DC1303A,DC1394A,DC1395A
Экспортный контроль	нет	нет
Основные особенности	PowerPath, Bat-Track, Overvoltage Protection	PowerPath, Bat-Track, Overvoltage Protection
Float Voltage, В	4.2V	4.2V
Max Charge Current, A	1.5	1.5
Number of Cells	1	1
Количество выходов	1	1
Рабочий диапазон температур, °C	от 0 до 85	от 0 до 85
PowerPath	Switching PowerPath, 180mв„¦ Internal Ideal Diode	Switching PowerPath, 180mв„¦ Internal Ideal Diode
Type of Charger	Switching	Switching
Vin Max, В	5.5	5.5
Vin Min, В	4.35	4.35

Экологический статус

	LTC4098EUDC#PBF	LTC4098EUDC#TRPBF
RoHS	Совместим	Совместим

Другие варианты исполнения

LTC4098-1

Design Notes

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High Efficiency USB Power Management System Safely Charges Li-Ion/Polymer Batteries from Automotive Supplies &mdash DN464
PDF, 98 Кб, Файл опубликован: 16 мар 2009
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High Efficiency USB Power Management System Safely Charges
Li-Ion/Polymer Batteries from Automotive Supplies вЂ“ Design Note 464
George H. Barbehenn
In this circuit, the LTCВ®4098 USB power manager/LiIon battery charger controls an LT3480 HV step-down
regulator. The LTC4098вЂ™s Bat-Trackв„ў feature provides
a high efп¬Ѓciency, low power dissipation battery charger
from low and high voltages alike. The Bat-Track feature
controls an internal input current-limited switching regulator to regulate VOUT to approximately VBAT + 0.3V which
maximizes battery charger efп¬Ѓciency, and thus minimizes
power dissipation by operating the battery charger with
minimal headroom. Furthermore, the Bat-Track feature
reduces charge time by allowing a charge current greater
than the USB input current limitвЂ”the switching regulator
behaves like a transformer exchanging output voltage for
output current. Introduction
Automotive power systems are unforgiving electronic
environments. Transients to 90V can occur when the
nominal voltage range is 10V to 15V (ISO7637), along with
battery reversal in some cases. ItвЂ™s fairly straightforward
to build automotive electronics around this system, but
increasingly end users want to operate portable electronics, such as GPS systems or music/video players,
and to charge their Li-Ion batteries from the automotive
battery. To do so requires a compact, robust, efп¬Ѓcient …

Статьи

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Speed Up Li-ion Battery Charging and Reduce Heat with a Switching PowerPath Manager &mdash LT Journal
PDF, 263 Кб, Файл опубликован: 17 июн 2008
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LINEAR TECHNOLOGY June 2008 COVER ARTICLE
Speed Up Li-ion Battery Charging
and Reduce Heat with a Switching
PowerPathв„ў Manager.1
Steven Martin Linear in the NewsвЂ¦.2
DESIGN FEATURES
Hot Swapв„ў Controller Enables
Standard Power Supplies to
Share Load .6
Vladimir Ostrerov Understanding IP2 and IP3 Issues in
Direct Conversion Receivers for
WCDMA Wide Area Basestations .10
Doug Stuetzle Complete Dual-Channel Receiver
Combines 14-Bit, 125Msps ADCs,
Fixed-Gain Amplifiers and Antialias
Filters in a Single 11.25mm Г— 15mm
ОјModuleв„ў Package.14
Todd Nelson Battery Manager Enables Integrated,
Efficient, Scalable and Testable
Backup Power Systems.17
Mark Gurries 500nA Supply Supervisors Extend
Battery Life in Portable Electronics.22
Bob Jurgilewicz Quad Output Regulator Meets Varied …
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1.2A Monolithic Buck Regulator Shrinks Supply Size and Cost with Programmable Output Current Limit &mdash LT Journal
PDF, 240 Кб, Файл опубликован: 1 мар 2009
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LвЂ‰DESIGN FEATURES 1.2A Monolithic Buck Regulator
Shrinks Supply Size and Cost with
Programmable Output Current Limit
by Tom Sheehan Introduction
Power supplies are often overqualified
for their job. This is because power
ICs often specify a current limit that
is more than twice the rated output
current of the device. The power supply
components are sized to handle the
maximum current that the IC can deliver, even if loads are unlikely to draw
that current during normal operation.
The components are bigger and more
expensive than they need to be.
There is, however, an alternative:
set an accurate maximum output current on the supply once the real world
load is known. Accurately setting the
maximum output current reduces the
required current rating of the regulatorвЂ™s power path components, thus
replacing big, expensive components
with smaller, less expensive ones.
A limit on the regulatorвЂ™s maximum output limits the maximum power
dissipation of both the supply and …

Модельный ряд

Серия: LTC4098 (2)

LTC4098EUDC#PBF LTC4098EUDC#TRPBF

Классификация производителя

Power Management > PMIC & Multifunction > USB Power Manager (PowerPath, Battery Charger)