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参数资料
| 型号： | MAX17049G+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/19页 |
| 文件大小： | 0K |
| 描述： | IC FUEL/GAS GAUGE LI-ION 8TDFN |
| 标准包装： | 1 |
| 系列： | ModelGauge™ |
| 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： | 2.5 V ~ 4.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WFDFN 裸露焊盘 |
| 供应商设备封装： | 8-TDFN-EP（2x2） |
| 包装： | 管件 |
EVALUATION KIT AVAILABLE
MAX17048/MAX17049
Micropower 1-Cell/2-Cell Li+ ModelGauge ICs
General Description
The MAX17048/MAX17049 ICs are tiny, micropower
current fuel gauges for lithium-ion (Li+) batteries in hand-
held and portable equipment. The MAX17048 operates
with a single lithium cell and the MAX17049 with two
lithium cells in series.
The ICs use the sophisticated Li+ battery-modeling
algorithm ModelGauge K to track the battery rela-
tive state-of-charge (SOC) continuously over widely
varying charge and discharge conditions. The
ModelGauge algorithm eliminates current-sense resistor
and battery-learn cycles required in traditional fuel gauges.
Temperature compensation is implemented using the
system microcontroller.
The ICs automatically detect when the battery enters a
low-current state and enters low-power 4 F A hibernate
mode, while still providing accurate fuel gauging. The
ICs automatically exit hibernate mode when the system
returns to active state.
On battery insertion, the ICs debounce initial voltage
measurements to improve the initial SOC estimate,
thus allowing them to be located on system side. SOC,
voltage, and rate information is accessed using the I 2 C
interface. The ICs are available in a tiny 0.9mm x 1.7mm,
8-bump wafer-level package (WLP), or a 2mm x 2mm,
8-pin TDFN package.
Applications
Wireless Handsets
Smartphones/PDAs
Tablets and Handheld Computers
Portable Game Players
e-Readers
Digital Still and Video Cameras
Portable Medical Equipment
Features and Benefits
S MAX17048: 1 Cell, MAX17049: 2 Cells
S Precision ±7.5mV/Cell Voltage Measurement
S ModelGauge Algorithm
? Provides Accurate State-of-Charge
? Compensates for Temperature/Load Variation
? Does Not Accumulate Errors, Unlike Coulomb
Counters
? Eliminates Learning
? Eliminates Current-Sense Resistor
S Ultra-Low Quiescent Current
? 4μA Hibernate, 23μA Active
? Fuel Gauges in Hibernate Mode
? Automatically Enters and Exits Hibernate Mode
S Reports Charge and Discharge Rate
S Battery-Insertion Debounce
? Best of 16 Samples to Estimate Initial SOC
S Programmable Reset for Battery Swap
? 2.28V to 3.48V Range
S Configurable Alert Indicator
? Low SOC
? 1% Change in SOC
? Battery Undervoltage/Overvoltage
? VRESET Alert
S I 2 C Interface
S 8-Bit OTP ID Register (Contact Factory)
Simplified Operating Circuit
MAX17048
V DD
ALRT
ONLY ONE
EXTERNAL
COMPONENT
CELL
CTG
GND
SDA
SCL
QSTRT
SYSTEM
μP
ModelGauge is a trademark of Maxim Integrated Products,
Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-6171; Rev 5; 10/13
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX17049G+ | 功能描述:电池管理 Host-Side Modelgauge (2-Cell) RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX17049G+T10 | 功能描述:电池管理 Host-Side Modelgauge (2-Cell) RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX17049X+ | 功能描述:电池管理 Host-Side Modelgauge (2-Cell) WLCSP RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX17049X+T10 | 功能描述:电池管理 Host-Side Modelgauge (2-Cell) WLCSP RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX17050EVKIT# | 功能描述:电源管理IC开发工具 MAX17050 Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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