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LTC4099EPDC#PBF

Description
电池 多功能控制器 IC 锂离子/聚合物 20-UTQFN-EP(3x4)
Categorysemiconductor    Multi-channel IC (PMIC)   
File Size530KB,36 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric View All

LTC4099EPDC#PBF Overview

电池 多功能控制器 IC 锂离子/聚合物 20-UTQFN-EP(3x4)

LTC4099EPDC#PBF Parametric

Parameter NameAttribute value
category
MakerADI
seriesPowerPath™
PackagePipe fittings
FunctionMultifunctional controller
电池化学成份Li-ion/polymer
Number of batteries-
failsafeovervoltage
interfaceI²C,USB
Operating temperature-40°C ~ 85°C(TA)
Installation typesurface mount type
Package/casing20-UFQFN Exposed Pad
Supplier device packaging20-UTQFN-EP(3x4)
Basic product numberLTC4099
FeaTures
n
n
n
n
LTC4099
I
2
C Controlled
USB Power Manager/Charger
with Overvoltage Protection
DescripTion
n
n
n
n
n
n
n
Switching Regulator with Bat-Track™ Adaptive Output
Control Makes Optimal Use of Limited Input Power
I
2
C Port for Optimal System Performance and
Status Information
Input Overvoltage Protection
Bat-Track Control of External Step-Down Switching
Regulator Maximizes Efficiency from Automotive
and Other High Voltage Sources
Instant-On Operation with Low Battery
Optional Overtemperature Battery Conditioner
Improves High Temperature Battery Safety Margin
Ideal Diode Seamlessly Connects Battery When Input
Power is Limited or Unavailable
Full-Featured Li-Ion/Polymer Battery Charger
1.5A Maximum Charge Current with Thermal Limiting
Slew Control Reduces Switching EMI
20-Lead 3mm × 4mm × 0.75mm QFN Package
Media Players
Portable Navigation Devices
Smart Phones
Industrial Handhelds
Portable Medical Instruments
The LTC
®
4099 is an I
2
C controlled high efficiency USB
PowerPath™ controller and full-featured Li-Ion/Polymer
battery charger. It seamlessly manages power distribution
from multiple sources including USB, a wall adapter and
a Li-Ion/Polymer battery.
The LTC4099 automatically limits its input current for
USB compatibility. For automotive and other high volt-
age applications, the LTC4099 interfaces with an external
switching regulator. Both the USB input and the auxiliary
input controller feature Bat-Track optimized charging to
provide maximum power to the application and reduced
heat in high power density applications.
The I
2
C port allows digital control of important application
parameters including input current limit, charge current
and float voltage. Several status bits can also be read back
via I
2
C.
An overvoltage protection circuit guards the LTC4099
from high voltage damage on the low voltage V
BUS
pin.The
LTC4099 is available in a 20-Lead 3mm × 4mm × 0.75mm
QFN Package.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of
Linear Technology Corporation. PowerPath, Bat-Track and ThinSOT are trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Protected by U.S. Patents, including 6522118, 6570372, 6700364, 6819094. Other patents
pending.
applicaTions
n
n
n
n
n
Typical applicaTion
OVERVOLTAGE
USB PROTECTION
I
2
C Controlled High Efficiency Battery Charger/
USB Power Manager
V
BUS
OVGATE
OVSENS
2
I
2
C
CLPROG PROG
SW
V
OUT
LTC4099
BAT
BATSENS
NTCBIAS
GND
NTC
100k
T
POWER DISSIPATION (W)
3.3µH
10µF
SYSTEM
LOAD
10µF
Reduced Power Dissipation
vs Linear Battery Charger
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
Li-Ion
4099 TA01a
LINEAR BATTERY
CHARGER
V
IN
= 5V
I
CHARGE
= 1A
ADDITIONAL POWER
AVAILABLE FOR CHARGING
6.2k
TO µCONTROLLER
SWITCHING BATTERY
CHARGER
0.1µF
3.01k
1.02k
100k
+
0
3.3
3.4
3.5
3.6
3.7
3.8
3.9
4
4.1
4099 TA01b
BATTERY VOLTAGE (V)
4099fd

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