参数资料
型号: LTC4155EUFD#TRPBF
厂商: Linear Technology
文件页数: 1/52页
文件大小: 0K
描述: IC I2C POWER MANAGER DUAL 28QFN
标准包装: 2,500
系列: PowerPath™
功能: 充电管理,电源管理
电池化学: 锂离子(Li-Ion)、锂聚合物(Li-Pol)
电源电压: 4.35 V ~ 5.5 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 28-WFQFN 裸露焊盘
供应商设备封装: 28-QFN(4x5)
包装: 带卷 (TR)
LTC4155
Dual-Input Power Manager/
3.5A Li-Ion Battery Charger with
I 2 C Control and USB OTG
FEATURES
DESCRIPTION
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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
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
28-Lead 4mm × 5mm QFN Package
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APPLICATIONS
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
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Tablet PCs
Ultra Mobile PCs
Video Media Players
Digital Cameras, GPS, PDAs
Smart Phones
Portable Medical Devices
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)
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.
28-lead 4mm × 5mm QFN surface mount package.
TYPICAL APPLICATION
I 2 C Controlled High Power Battery Charger/USB Power Manager
100
Switching Regulator Efficiency
1μH
TO
90
WALLSNS
WALLGT
SW
V OUT
SYSTEM
LOAD
80
70
V IN
10μF
3.6k
V BUS
USBGT
USBSNS
LTC4155
CHGSNS
BATGATE
BATSNS
NTCBIAS
100k
22μF
60
50
40
30
3
ID
I 2 C IRQ GND CLPROG2 CLPROG1 PROG V C
NTC
OVGCAP
20
10
1.21k
499Ω
47nF
0
0
0.5
1.0
1.5
2.0
V BAT = 3.9V
2.5 3.0 3.5
LOAD CURRENT (A)
4155 TA01b
4155 TA01a
4155fc
1
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相关代理商/技术参数
参数描述
LTC4155IUFD#PBF 功能描述:IC I2C POWER MANAGER DUAL 28QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:PowerPath™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性,锂离子,镍镉,镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR)
LTC4155IUFD#TRPBF 功能描述:IC I2C POWER MANAGER DUAL 28QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:PowerPath™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性,锂离子,镍镉,镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR)
LTC4156EUFD#PBF 功能描述:IC POWER LI-ION CHARGER 28-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:* 其它有关文件:STC3100 View All Specifications 特色产品:STC3100 - Battery Monitor IC 标准包装:4,000 系列:- 功能:燃料,电量检测计/监控器 电池化学:锂离子(Li-Ion) 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP,8-MSOP(0.118",3.00mm 宽) 供应商设备封装:8-MiniSO 包装:带卷 (TR) 其它名称:497-10526-2
LTC4156EUFD#TRPBF 功能描述:IC POWER LI-ION CHARGER 28-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:* 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性,锂离子,镍镉,镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR)
LTC4156IUFD#PBF 功能描述:IC POWER LI-ION CHARGER 28-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:* 其它有关文件:STC3100 View All Specifications 特色产品:STC3100 - Battery Monitor IC 标准包装:4,000 系列:- 功能:燃料,电量检测计/监控器 电池化学:锂离子(Li-Ion) 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP,8-MSOP(0.118",3.00mm 宽) 供应商设备封装:8-MiniSO 包装:带卷 (TR) 其它名称:497-10526-2