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参数资料
| 型号： | DS2784G+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 28/43页 |
| 文件大小： | 0K |
| 描述： | IC FUEL GAUGE STND-ALONE 14-TDFN |
| 产品培训模块： | 1-Wire Communications Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 60 |
| 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 ~ 4.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-WFDFN 裸露焊盘 |
| 供应商设备封装： | 14-TDFN-EP（3x5） |
| 包装： | 管件 |
| 产品目录页面： | 1437 (CN2011-ZH PDF) |
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DS2784: 1-Cell Stand-Alone Fuel Gauge IC with Li+ Protector and SHA-1 Authentication
Calculation of Results
RAAC [mAh] = (ACR[mVh] - AE(T) * FULL40[mVh]) * R SNSP [mhos]
Note: R SNSP = 1/R SNS
RSAC [mAh] = (ACR[mVh] - SE(T) * FULL40[mVh]) * R SNSP [mhos]
Note: R SNSP = 1/R SNS
RARC [%] = 100% * (ACR[mVh] - AE(T) * FULL40[mVh]) /
{(AS * FULL(T) - AE(T)) * FULL40[mVh]}
RSRC [%] = 100%* (ACR[mVh] - SE(T) * FULL40[mVh]) /
{(AS * FULL(T) - SE(T)) * FULL40[mVh]}
SPECIAL FEATURE REGISTER FORMAT
All register bits are read and write accessible, with default values specified in each bit definition.
ADDRESS 15H
BIT 7
X
BIT 6
X
BIT 5
X
BIT 4
X
BIT 3
X
BIT 2
X
BIT 1
X
BIT 0
PIOB
PIOB —PIO Pin Sense and Control Bit. Writing a 0 to the PIOB bit activates the PIO pin open-drain output driver,
forcing the PIO pin low. Writing a 1 to PIOB disables the output driver, allowing the PIO pin to be pulled high or
used as an input. Reading PIOB returns the logic level forced on the PIO pin. Note that if the PIO pin is high
impedance/unconnected with PIOB set, a weak pulldown current source pulls the PIO pin to V SS . PIOB is set to a 1
on power-up. PIOB is also set in Sleep mode to ensure the PIO pin is high-impedance in sleep mode.
Note: Do not write PIOB to 0 if PSPIO is enabled.
X —Reserved Bits.
EEPROM REGISTER
The EEPROM register provides access control of the EEPROM blocks. EEPROM blocks can be locked to prevent
alteration of data within the block. Locking a block disables write access to the block. Once a block is locked, it
cannot be unlocked. Read access to EEPROM blocks is unaffected by the lock/unlock status.
EEPROM REGISTER FORMAT
ADDRESS 1Fh
BIT 7
EEC
BIT 6
LOCK
BIT 5
X
BIT 4
X
BIT 3
X
BIT 2
X
BIT 1
BL1
BIT 0
BL0
EEC —EEPROM Copy Flag. A 1 in this read-only bit indicates that a Copy Data Function command is in progress.
While this bit is high, writes to EEPROM addresses are ignored. A 0 value in this bit indicates that data can be
written to unlocked EEPROM.
LOCK —EEPROM Lock Enable. When the lock bit is 0, the Lock Function command is ignored. Writing a 1 to this
bit enables the Lock Function command. After setting the lock bit the Lock Function command must be issued as
the next command, or else the lock bit is reset to 0. After the lock operation is completed, the lock bit is reset to 0.
The lock bit is a volatile R/W bit, initialized to 0 upon POR.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2784G R | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:1-Cell Stand-Alone Fuel Gauge IC with Li+ Protector and SHA-1 Authentication |
| DS2784G T | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:1-Cell Stand-Alone Fuel Gauge IC with Li+ Protector and SHA-1 Authentication |
| DS2784G+ | 功能描述:电池管理 Stand-Alone Fuel Gauge 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 |
| DS2784G+R | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:1-Cell Stand-Alone Fuel Gauge IC with Li Protector and SHA-1 Authentication |
| DS2784G+T | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:1-Cell Stand-Alone Fuel Gauge IC with Li Protector and SHA-1 Authentication |
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