Datasheet Linear Technology LTC4155IUFD#PBF — 数据表

制造商	Linear Technology
系列	LTC4155
零件号	LTC4155IUFD#PBF

双输入电源管理器/具有I2C控制和USB OTG的3.5A锂离子电池充电器

数据表

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PDF, 515 Kb, 修订版: D, 文件上传: Oct 2, 2017

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价格

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Package	4x5 QFN-28
Package Code	UFD
Package Index	05-08-1712

参数化

Battery Chemistry	Li-Ion, Li-Polymer
Demo Boards	DC1674A-A
Design Tools	Linduino File
Export Control	no
Features	Bat-Track, Overvoltage Protection, I2C, PowerPath, NTC Input, USB On-The-Go
Float Voltage	4.05V, 4.1V, 4.15V, 4.2V V
Max Charge Current	3.5 A
Number of Cells	1
Number of Outputs	2
Operating Temperature Range	-40 to 85 °C
PowerPath	Switching PowerPath
Type of Charger	Switching, I2C
Vin Max	5.5 V
Vin Min	4.35 V

生态计划

RoHS

Compliant

设计须知

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Complete Battery Charger Solution for High Current Portable Electronics &mdash DN496
PDF, 115 Kb, 档案已发布: Sep 19, 2011
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Complete Battery Charger Solution for High Current Portable
Electronics
3.5A Charger for Li-Ion/LiFePO4 Batteries Multiplexes USB and Wall Inputs
Design Note 496
George H. Barbehenn
Introduction
The LTC В®4155 and LTC4156 are dual multiplexed-input
battery chargers with PowerPathв„ў control, featuring I2C
programmability and USB On-The-Go for systems such
as tablet PCs and other high power density applications.
The LTC4155вЂ™s float voltage (VFLOAT ) range is optimized
for Li-Ion batteries, while the LTC4156 is optimized for
lithium iron phosphate (LiFePO4) batteries, supporting
system loads to 4A with up to 3.5A of battery charge
current. I2C controls a broad range of functions and USB
On-The-Go functionality is controlled directly from the
USB connector ID pin. N-channel MOSFETs controlled by an internal charge
pump. The input multiplexer has input priority selection
and independent input current limits for each channel.
Applications include any device with a high capacity
Li-Ion or LiFePO4 battery that can be charged from a high
current wall adapter input or from the USB inputвЂ”such
as a tablet PC. Figure 1 shows a typical application and …

文章

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I2C-Controlled Li-Ion Power Management IC with Integrated Power Devices Charges High Capacity Batteries from Any 5V Source While Keeping Cool &mdash LT Journal
PDF, 2.1 Mb, 档案已发布: Jul 20, 2012
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design features I2C-Controlled Li-Ion Power Management IC with
Integrated Power Devices Charges High Capacity Batteries
from Any 5V Source While Keeping Cool
David Simmons Designers of portable electronics are challenged to create
devices that do everything while running endlessly on a
single battery charge. While it is impossible to fully meet
this challenge, each successive generation of batteries at
least comes closer to that goal. With devices now sporting
large vibrant touch-sensitive displays, multicore CPU
and graphics processors, and an assortment of wireless
modems for high speed communications anywhere on
the planet, high battery capacity is essential. Battery
manufacturers have met the demand with light weight,
compact cells with capacities to over 30 watt-hours.
While USB has become the dominant standard for device interconnect, synchronization and data exchange, its power delivery
capabilities have not kept pace with battery demands. USB 2.0 allows a maximum
2.5W load, while USB 3.0 extends the limit
to 4.5W. Even with perfect efficiency and
all power going directly to the battery, a full charge cycle via USB would require
overnight and then some. Though USB is
not suitable as a primary power source for
large capacity batteries, it still has great
value as an opportunistic power source …

模型线

系列: LTC4155 (4)

LTC4155EUFD#PBF LTC4155EUFD#TRPBF LTC4155IUFD#PBF LTC4155IUFD#TRPBF

制造商分类

Power Management > Battery Management > Battery Charger IC > SMBus/I2C/SPI Controlled Battery Chargers
Power Management > PMIC & Multifunction > USB Power Manager (PowerPath, Battery Charger)

其他名称:

LTC4155IUFDPBF, LTC4155IUFD PBF