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参数资料
| 型号： | DS2745U+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/15页 |
| 文件大小： | 0K |
| 描述： | IC BATT MONITOR I2C 8-UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 3,000 |
| 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： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-uMAX |
| 包装： | 带卷 (TR) |
Through its two wire I C interface, the DS2745 allows a host system read/write access to the Status, Configuration
DS2745 Low-Cost I 2 C Battery Monitor
DETAILED DESCRIPTION
Current is measured bidirectionally over a dynamic range of ±51.2mV with a resolution of 1.56 ? V. Assuming a
15m ? sense resistor, the current sense range is ±3.4A, with a 1 LSB resolution of 104 ? A. Current measurements
are performed at regular intervals and accumulated with each measurement to support accurate “coulomb
counting”. Each current measurement is reported with sign and magnitude in the two-byte Current register. The
Accumulated Current register (ACR) reports the coulomb count and supports a wide range of battery sizes. Battery
voltage measurements are reported in the two-byte Voltage register with 11-bit (4.88mV) resolution, and
Temperature is reported in the two-byte Temperature register with 0.125C resolution.
The DS2745 measurements can be used directly to provide accurate fuel gauging in typical use conditions, or
along with FuelPack? algorithms to form a complete and accurate solution for estimating remaining capacity over
wide temperature and operating conditions.
2
and Measurement registers. Additionally, the I 2 C slave address can be changed from the default after power up.
Figure 3. APPLICATION EXAMPLE
PACK+
500
1k
DS2745
1 Cell Li+
PIO
VSS
VIN
CTG
SNS
SCL
150
150
CLOCK
DATA
VDD
SDA
Protection IC
(Li+/Polymer)
103
5.6V
(1)
5.6V
(1)
5.6V
(1)
R SNS
PACK -
2.5V
(1)
102
102
(1) Optional for 8kV/15kV ESD
FuelPack is a trademark of Maxim Integrated Products, Inc.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2746 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Cost 2-Wire Battery Monitor with Ratiometric A/D Inputs |
| DS2746_07 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Low-Cost 2-Wire Battery Monitor with Ratiometric A/D Inputs |
| DS2746G+ | 功能描述:电池管理 2-Wire Bat Monitor w/Ratiometric A/D IN 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 |
| DS2746G+T&R | 制造商:Maxim Integrated Products 功能描述:MONITOR 2.4V 10TDFN EP - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC MON BATTERY 2-WIRE 10-TDFN |
| DS2746G+T&R | 功能描述:电池管理 2-Wire Bat Monitor w/Ratiometric A/D IN 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 |
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