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LTC4155EUFD#TRPBF

Description
Dual-Input Power Manager/3.5A Li-Ion Battery Charger 4.35V to 5.5V 28-Pin QFN EP T/R
File Size464KB，52 Pages
ManufacturerADI
Websitehttps://www.analog.com
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LTC4155EUFD#TRPBF Overview

Dual-Input Power Manager/3.5A Li-Ion Battery Charger 4.35V to 5.5V 28-Pin QFN EP T/R

LTC4155EUFD#TRPBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
FunctionDual-Input Power Manager/3.5A Li-Ion Battery Charger
Switching Frequency (kHz)2500
Input Voltage (V)4.35 to 5.5
Minimum Operating Supply Voltage (V)4.35
Maximum Operating Supply Voltage (V)5.5
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)125
Supplier Temperature GradeExtended
Maximum Storage Temperature (°C)150
Minimum Storage Temperature (°C)-65
Standard Package NameQFN
Pin Count28
Supplier PackageQFN EP
MountingSurface Mount
Package Height0.75(Max)
Package Length5
Package Width4
PCB changed28
Lead ShapeNo Lead

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LTC4155
Dual-Input Power Manager/
3.5A Li-Ion Battery Charger with
I
2
C Control and USB OTG
FeaTures
n
n
DescripTion
The
LTC
®
4155
is a 15 watt I
2
C controlled power manager
with PowerPath™ instant-on operation, high efficiency
switching battery charging and USB compatibility. The
LTC4155 seamlessly manages power distribution from
two 5V sources, such as a USB port and a wall adapter,
to a single-cell rechargeable Lithium-Ion/Polymer battery
and a system load.
The LTC4155’s switching battery charger automatically
limits its input current for USB compatibility, or may
draw up to 3A from a high power wall adapter. The high
efficiency step-down switching charger is designed to
provide maximum power to the application and reduced
heat in high power density applications.
I
2
C adjustability of input current, charge current, battery
float voltage, charge termination, and many other param-
eters allows maximum flexibility. I
2
C status reporting of
key system and charge parameters facilitates intelligent
control decisions. USB On-The-Go support provides 5V
power back to the USB port without any additional com-
ponents. A dual-input, priority multiplexing, overvoltage
protection circuit guards the LTC4155 from high voltage
damage on the V
BUS
pin.
The LTC4155 is available in the low profile (0.75mm)
28-lead 4mm
×
5mm QFN surface mount package.
n
n
n
n
n
n
n
n
n
High Efficiency Charger Capable of 3.5A
Charge Current
Monolithic Switching Regulator Makes Optimal
Use of Limited Power and Thermal Budget
Dual-Input Overvoltage Protection Controller
Priority Multiplexing for Multiple Inputs
I
2
C/SMBus Control and Status Feedback
NTC Thermistor ADC for Temperature Dependent
Charge Algorithms (JEITA)
Instant-On Operation with Low Battery
Battery Ideal Diode Controller for Power
Management
USB On-The-Go Power Delivery to the USB Port
Full Featured Li-Ion/Polymer Battery Charger with
Four Float Voltage Settings
28-Lead 4mm
×
5mm QFN Package
applicaTions
n
n
n
n
n
n
Tablet PCs
Ultra Mobile PCs
Video Media Players
Digital Cameras, GPS, PDAs
Smart Phones
Portable Medical Devices
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
PowerPath and Bat-Track are trademarks of Linear Technology Corporation. All other trademarks
are the property of their respective owners.
Typical applicaTion
I
2
C Controlled High Power Battery Charger/USB Power Manager
1µH
WALLSNS
WALLGT
V
IN
V
BUS
LTC4155
USBGT
USBSNS
ID
I
2
C
IRQ
GND CLPROG2 CLPROG1 PROG V
C
1.21k
499
SW
V
OUT
CHGSNS
BATGATE
BATSNS
NTCBIAS
NTC
OVGCAP
47nF
4155 TA01a
Switching Regulator Efficiency
100
90
80
EFFICIENCY (%)
70
60
50
40
30
20
10
0
0
0.5
V
BAT
= 3.9V
1.0 1.5 2.0
2.5
LOAD CURRENT (A)
3.0
3.5
4155 TA01b
TO
SYSTEM
LOAD
10µF
3.6k
3
22µF
100k
4155fd
For more information
www.linear.com/LTC4155
1

LTC4155EUFD#TRPBF Related Products

LTC4155EUFD#TRPBF LTC4155EUFD#PBF LTC4155IUFD#PBF LTC4155IUFD#TRPBF
Description Dual-Input Power Manager/3.5A Li-Ion Battery Charger 4.35V to 5.5V 28-Pin QFN EP T/R Dual-Input Power Manager/3.5A Li-Ion Battery Charger 4.35V to 5.5V 28-Pin QFN EP Tube Dual-Input Power Manager/3.5A Li-Ion Battery Charger 4.35V to 5.5V Automotive 28-Pin QFN EP Tube Dual-Input Power Manager/3.5A Li-Ion Battery Charger 4.35V to 5.5V Automotive 28-Pin QFN EP T/R
EU restricts the use of certain hazardous substances Compliant Compliant Compliant Compliant
ECCN (US) EAR99 EAR99 EAR99 EAR99
Part Status Active Active Active Active
HTS 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01
Function Dual-Input Power Manager/3.5A Li-Ion Battery Charger Dual-Input Power Manager/3.5A Li-Ion Battery Charger Dual-Input Power Manager/3.5A Li-Ion Battery Charger Dual-Input Power Manager/3.5A Li-Ion Battery Charger
Switching Frequency (kHz) 2500 2500 2500 2500
Input Voltage (V) 4.35 to 5.5 4.35 to 5.5 4.35 to 5.5 4.35 to 5.5
Minimum Operating Supply Voltage (V) 4.35 4.35 4.35 4.35
Maximum Operating Supply Voltage (V) 5.5 5.5 5.5 5.5
Minimum Operating Temperature (°C) -40 -40 -40 -40
Maximum Operating Temperature (°C) 125 125 125 125
Supplier Temperature Grade Extended Extended Industrial Industrial
Maximum Storage Temperature (°C) 150 150 150 150
Minimum Storage Temperature (°C) -65 -65 -65 -65
Standard Package Name QFN QFN QFN QFN
Pin Count 28 28 28 28
Supplier Package QFN EP QFN EP QFN EP QFN EP
Mounting Surface Mount Surface Mount Surface Mount Surface Mount
Package Height 0.75(Max) 0.75(Max) 0.75(Max) 0.75(Max)
Package Length 5 5 5 5
Package Width 4 4 4 4
PCB changed 28 28 28 28
Lead Shape No Lead No Lead No Lead No Lead

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