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参数资料
| 型号： | DS2746G+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/17页 |
| 文件大小： | 0K |
| 描述： | IC MON BATTERY 2-WIRE 10-TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 功能： | 燃料，电量检测计/监控器 |
| 电池化学： | 锂离子（Li-Ion）；镍金属氢化物（NiMH） |
| 电源电压： | 2.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN 裸露焊盘 |
| 供应商设备封装： | 10-TDFN-EP（3x3） |
| 包装： | 带卷 (TR) |
19-4632; 5/09
DS2746
Low-Cost 2-Wire Battery Monitor
with Ratiometric A/D Inputs
www.maxim-ic.com
GENERAL DESCRIPTION
FEATURES
The DS2746 provides system-side battery capacity
monitoring in cost-sensitive applications. Voltage,
bidirectional current, and accumulated current
measurement data is provided to the host processor
over a 2-wire interface. Offset bias and offset
blanking features greatly enhance the accuracy of
the coulomb counter. In addition, the DS2746 has
two auxiliary A/D inputs to sample the pack
identification resistor, thermistor, or other voltage
source. The results are reported as a ratiometric
fraction of the supply voltage eliminating error related
to the supply. The DS2746 reduces the total power
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14-Bit Bidirectional Current Measurement
- 6.25 ? V LSB, ±51.2mV Dynamic Range
- 416.7 ? A LSB, ±3.4A Range (R SNS = 15m ? )
Current Accumulation Register Resolution
- 6.25 ? Vhr LSB, 409.6mVh Range
- 417 ? Ahr LSB, 27.31Ah Range
11-Bit Battery Voltage Measurement
- 2.44mV LSB, 0V to 4.5V Input Range
- ±10mV Accuracy at 3.6V Input
Two 11-Bit Aux Input Voltage Measurements
consumption of the measurement circuit by enabling
-
Ratiometric Inputs Eliminate Supply Error
the resistor dividers, through the V OUT pin, only while
measurements are made. When the system is
inactive, a low power sleep mode reduces current
consumption while maintaining the coulomb count.
The tiny 3mm × 3mm TDFN package consumes only
9mm 2 of PCB space.
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- VOUT drives Dividers, Reduces Power
- ±8 LSB Accuracy
Low Power Consumption:
- Active Current: 70 ? A typical, 100 ? A max
- Sleep Current: 1 ? A typical, 3 ? A max
ORDERING INFORMATION
10-Pin 3 mm× 3mm
TDFN
DS2746G+T&R
-20oC to +70oC
APPLICATIONS
2.5G/3G Wireless Handsets
PDA/Smartphones
Digital Still and Video Cameras
Handheld Computers and Terminals
TYPICAL OPERATING CIRCUIT
PART TEMP RANGE PIN-PACKAGE
DS2746G+ -20oC to +70oC
DS2746G+ in Tape-
and-Reel
+ Denotes lead(Pb)-free/RoHS-compliant package.
PIN CONFIGURATION
TOP VIEW
3mm × 3mm TDFN
Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device
may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata .
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2746K | 功能描述:电源管理IC开发工具 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 |
| DS275 | 功能描述:RS-232接口集成电路 RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| DS275+ | 功能描述:RS-232接口集成电路 Line-Powered RS-232 Transceiver Chip RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| DS2751 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Multichemistry Fuel Garge |
| DS2751+ | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Multichemistry Fuel Garge |
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