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参数资料
| 型号： | DS2788E+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 18/32页 |
| 文件大小： | 0K |
| 描述： | IC FUEL GAUGE W/DSP DRV 14TSSOP |
| 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： | 14-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 14-TSSOP |
| 包装： | 带卷 (TR) |
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Stand-Alone Fuel-Gauge IC with
LED Display Drivers
Calculation of Results
RAAC [mAh] = (ACR[mVh] - AE(T) × FULL50[mVh]) × RSNSP [mhos]
RSAC [mAh] = (ACR[mVh] - SE(T) × FULL50[mVh]) × RSNSP [mhos]
RARC [%] = 100% × (ACR[mVh] - AE(T) × FULL50[mVh]) / {(AS × FULL(T) - AE(T)) × FULL50[mVh]}
RSRC [%] = 100% × (ACR[mVh] - SE(T) × FULL50[mVh]) / {(AS × FULL(T) - SE(T)) × FULL50[mVh]}
Status Register
The Status register contains bits that report the device
status. The bits can be set internally by the DS2788.
The CHGTF, AEF, SEF, and LEARNF bits are read-only
bits that can be cleared by hardware. The UVF and
PORF bits can only be cleared through the 1-Wire
interface.
ADDRESS
01h
BIT DEFINITION
Field
Bit
Format
Allowable Values
Charge Termination Flag
CHGTF
7
Read Only
Set to 1 when: (VOLT > VCHG) and (0 < IAVG < IMIN) continuously for a period
between two IAVG register updates (28s to 56s).
Cleared to 0 when: RARC < 90%
Active Empty Flag
AEF
6
Read Only
Set to 1 when: VOLT < VAE
Cleared to 0 when: RARC > 5%
Standby Empty Flag
SEF
5
Read Only
Set to 1 when: RSRC < 10%
Cleared to 0 when: RSRC > 15%
Learn Flag—When set to 1, a charge cycle can be used to learn battery capacity.
LEARNF
4
Read Only
Set to 1 when: (VOLT falls from above VAE to below VAE) and (CURRENT > IAE)
Cleared to 0 when: (CHGTF = 1) or (CURRENT < 0) or (ACR = 0**) or (ACR
written or recalled from EEPROM) or (SLEEP Entered).
Reserved
3
Read Only
Undefined
Undervoltage Flag
UVF
2
Read/Write*
Set to 1 when: VOLT < V SLEEP
Cleared to 0 by: User
Power-On Reset Flag—Useful for reset detection, see text below.
PORF
1
Read/Write*
Set to 1 when: upon power-up by hardware.
Cleared to 0 by: User
Reserved
0
Read Only
Undefined
*This bit can be set by the DS2788, and can only be cleared through the 1-Wire interface.
**LEARNF is only cleared if ACR reaches 0 after VOLT < VAE.
Figure 18. Status Register Format
18
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2788EVKIT+ | 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 |
| DS2788K | 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 |
| DS2790 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Programmable 1-Cell Li-Ion Fuel Gauge and Protector |
| DS2790E | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Programmable 1-Cell Li-Ion Fuel Gauge and Protector |
| DS2790E+ | 功能描述:IC FUEL GAUGE BATT 28TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:1 系列:- 功能:充电管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:3.75 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:剪切带 (CT) 产品目录页面:669 (CN2011-ZH PDF) 其它名称:MCP73831T-2ACI/OTCT |
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