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参数资料
| 型号： | DS2786G-5+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/22页 |
| 文件大小： | 0K |
| 描述： | IC FUEL GAUGE OCV-BASED 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）、锂聚合物（Li-Pol） |
| 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（3x4） |
| 包装： | 带卷 (TR) |
DS2786 Stand-Alone OCV-Based Fuel Gauge
POWER MODES
The DS2786 operates in one of two power modes: Active and Sleep. While in Active mode, the DS2786 operates
as a high-precision battery monitor with temperature, voltage, auxiliary inputs, current, and accumulated current
measurements acquired continuously and the resulting values updated in the Measurement Registers. In Sleep
mode, the DS2786 operates in a low-power mode with no measurement activity. Read and write access is allowed
to all registers in either mode.
The DS2786 operating mode transitions from Sleep to Active when:
( SCL > V IH ) OR ( SDA > V IH )
The DS2786 operating mode transitions from Active to Sleep when:
SMOD = 1 AND [ ( SCL < V IL ) AND ( SDA < V IL ) ] for t SLEEP
CAUTION: If SMOD = 1, a pullup resistor is required on SCL and SDA in order to ensure that the DS2786
transitions from Sleep to Active mode when the battery is charged. If the bus is not pulled up, the DS2786 remains
in Sleep and cannot accumulate the charge current. This caution statement applies particularly to a battery that is
charged on a stand-alone charger.
PARAMETER MEASUREMENT
The DS2786 uses a Sigma Delta A/D converter to make measurements. The measurement sequence shown in
Figure 4 repeats continuously while the DS2786 is in Active mode. The V OUT pin is activated t PRE before the AIN0
and AIN1 conversion to allow for the V OUT output voltage to settle. The DS2786 can be configured to measure
temperature using its on-chip sensor instead of the AIN1 input. When the internal temperature measurement uses
the AIN1 conversion timeslot, V OUT is not activated. A full sequence of voltage measurements nominally takes
1760ms to complete.
Figure 4. Measurement Sequence
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2786K | 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 |
| DS2786K-SMP | 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 |
| DS2788 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Stand-Alone Fuel-Gauge IC with LED Display Drivers |
| DS2788_09 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Stand-Alone Fuel-Gauge IC with LED Display Drivers |
| DS2788E+ | 功能描述:电池管理 Stand-Alone F-Gauge w/LED Display Drvrs 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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