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参数资料
| 型号： | LTC4155IUFD#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 14/52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) |
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LTC4155
PIN FUNCTIONS
PROG (Pin 18): Charge Current Program and Monitor Pin. A
resistor from PROG to GND programs the maximum battery
charge rate. The LTC4155 features I 2 C programmability
enabling software selection of fifteen charge currents
that are inversely proportional to a single user-supplied
programming resistor.
CHGSNS (Pins 19, 20): Battery Charger Current Sense
Pin. An internal current sense resistor between V OUT
and CHGSNS monitors battery charge current. CHGSNS
should be connected to the source of an external P-channel
MOSFET transistor.
V OUT (Pins 21, 22): Output Voltage of the Switching
PowerPath Controller and Input Voltage of the Battery
Charging System. The majority of the portable product
should be powered from V OUT . The LTC4155 will partition
the available power between the external load on V OUT and
the battery charger. Priority is given to the external load
and any extra power is used to charge the battery. An
ideal diode control function from BATSNS to V OUT ensures
that V OUT is powered even if the load exceeds the allotted
power from V BUS or if the V BUS power source is removed.
V OUT should be bypassed with a low impedance multilayer
ceramic capacitor of at least 22μF.
V BUS (Pins 23, 24, 25): Input Voltage for the PowerPath
Step-Down Switching Regulator and Output Voltage for
the USB On-The-Go Step-Up Switching Regulator. V BUS
may be connected to the USB port of a computer or a DC
output wall adapter or to one or both optional overvolt-
age protection/multiplexer compound transistors. V BUS
should be bypassed with a low impedance multilayer
ceramic capacitor.
SW (Pins 26, 27): Switching Regulator Power Transmis-
sion Pin. The SW pin delivers power from V BUS to V OUT
via the step-down switching regulator and from V OUT to
V BUS via the step-up switching regulator. A 1μH inductor
should be connected from SW to V OUT . See the Applica-
tions Information section for a discussion of current rating.
SCL (Pin 28): Clock Input for the I 2 C Serial Port. The
I 2 C input levels are scaled with respect to DVCC for I 2 C
compliance.
GND (Exposed Pad Pin 29): Exposed pad must be soldered
to the PCB to provide a low electrical and thermal imped-
ance connection to the printed circuit board’s ground. A
continuous ground plane on the second layer of a multilayer
printed circuit board is strongly recommended.
4155fc
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| LTC4156IUFD#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) |
| LTC4160 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Switching Power Manager with USB On-The-Go And Overvoltage Protection |
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