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| 型号： | DS2740BU+T&R |
| 厂商： | Maxim Integrated |
| 文件页数： | 4/16页 |
| 文件大小： | 304K |
| 描述： | IC CURRENT GAUGE(15BIT) 8UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 3,000 |
| 功能： | 电流计（13 位） |
| 输入电压： | 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-uMAX |
| 包装： | 带卷 (TR) |
DS2740
Table 2. DETAILED PIN DESCRIPTIONS
PIN
SYMBOL
DESCRIPTION
OVD
1
1-Wire Bus Speed Control. Input logic level selects the speed of the 1-
Wire bus. Logic 1 selects overdrive (OVD) and Logic 0 selects standard
timing (STD). On a multidrop bus, all devices must operate at same
speed.
PIO
2
Programmable I/O Pin. Programmed as input or output through internal
registers. Open-drain output sufficient for LED or vibrator activation.
SNS
3
Current-Sense Resistor Input
IS2
4
Current-Sense Input. Connected to SNS through a 10k& resistor to
allow filtering of the current waveform by an external capacitor.
IS1
5
Current-Sense Input. Connected to V
SS
through a 10k& resistor to allow
filtering of the current waveform through an external capacitor.
V
SS
6
Device Ground, Current-Sense Resistor Return. Connect directly to
the negative terminal of the battery cell.
DQ
7
Data I/O Pin. Operates bidirectionally with open-drain output driver.
Internal 1礎 pulldown aids in sensing pack removal and Sleep-mode
activation.
V
DD
8
Power-Supply Input. Connects to system voltage supply or positive
terminal of battery cell.
Figure 2. APPLICATION EXAMPLE
DS2740
VDD
VSS
DQ
PIO
DATA
2.7V to 5.5V
System Supply or
Battery Pack Positive
Connection
To
Battery
Negative
SNS
PIO
IS1
IS2
104
150
330
R
SNS
104
System
GND
OVD
*
*
* 5.6V zener recommended for ESD protection when DATA or PIO
contacts exposed, such as a removable battery pack application
150
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2740EVKIT+ | 制造商:Maxim Integrated Products 功能描述:HIGH-PRECISION COULOMB COUNTER - Boxed Product (Development Kits) |
| DS2740K | 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 |
| DS2740U | 制造商:Maxim Integrated Products 功能描述:HI PRECISION COUL CNTR UMAX(USOP)-8 - Rail/Tube |
| DS2740U/R | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:High-Precision Coulomb Counter |
| DS2740U/T | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:High-Precision Coulomb Counter |
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