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参数资料
| 型号： | LTC4155EUFD#TRPBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源管理 |
| 英文描述： | POWER SUPPLY SUPPORT CKT, PQCC28 |
| 封装： | 5 X 4 MM, 0.75 MM HEIGHT, PLASTIC, MO-220WXXX-X, QFN-28 |
| 文件页数： | 1/52页 |
| 文件大小： | 473K |
| 代理商： | LTC4155EUFD#TRPBF |
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LTC4155
1
4155f
TYPICAL APPLICATION
FEATURES
DESCRIPTION
Dual Input Power Manager/
3.5A Li-Ion Battery Charger with
I2C Control and USB OTG
The LTC4155 is a 15 watt I2C 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.
I2C adjustability of input current, charge current, battery
float voltage, charge termination, and many other param-
eters allows maximum flexibility. I2C 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 VBUS pin.
The LTC4155 is available in the low profile 28-lead 4mm
× 5mm × 0.75mm QFN surface mount package.
I2C Controlled High Power Battery Charger/USB Power Manager
APPLICATIONS
n
High Efficiency Charger Capable of 3.5A
Charge Current
n
Monolithic Switching Regulator Makes Optimal
Use of Limited Power and Thermal Budget
n
Dual Input Overvoltage Protection Controller
n
Priority Multiplexing for Multiple Inputs
n
I2C/SMBus Control and Status Feedback
n
NTC Thermistor ADC for Temperature Dependent
Charge Algorithms (JEITA)
n
Instant-On Operation with Low Battery
n
Battery Ideal Diode Controller for Power
Management
n
USB On-The-Go Power Delivery to the USB Port
n
Full Featured Li-Ion/Polymer Battery Charger with
Four Float Voltage Settings
n
28-Lead 4mm
× 5mm QFN Package
n
Tablet PCs
n
Ultra Mobile PCs
n
Video Media Players
n
Digital Cameras, GPS, PDAs
n
Smart Phones
n
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.
VBUS
VIN
CLPROG1
CLPROG2
PROG VC OVGCAP
IRQ
I2C
GND
2
3.6k
100k
ID
USBGT
CHGSNS
USBSNS
1.21k
499
47nF
10F
0.1F
22F
NTC
BATSNS
BATGATE
NTCBIAS
WALLGT
LTC4155
WALLSNS
VOUT
SW
TO
SYSTEM
LOAD
1H
4155 TA01a
LOAD CURRENT (A)
0
EFFICIENCY
(%)
10
30
40
50
100
70
1.0
2.0
2.5
4155 TA01b
20
80
90
60
0.5
1.5
3.0
3.5
VBAT = 3.9V
Switching Regulator Efficiency
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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 |
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