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参数资料
| 型号： | DS2784G+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 15/43页 |
| 文件大小： | 0K |
| 描述： | IC FUEL GAUGE STND-ALONE 14-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 ~ 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： | 带卷 (TR) |
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DS2784: 1-Cell Stand-Alone Fuel Gauge IC with Li+ Protector and SHA-1 Authentication
Summary. All the protection conditions previously described are logic ANDed to affect the CC and DC outputs.
CC =
DC =
( Overvoltage ) AND ( Undervoltage ) AND ( Overcurrent, Charge Direction)
AND (Protection Register Bit CE)
( Undervoltage ) AND ( Overcurrent, Either Direction) AND ( Short Circuit )
AND (Protection Register Bit DE)
PROTECTION REGISTER FORMAT
The protection register reports events detected by the Li+ safety circuit on bits 2 to 7. Bits 0 and 1 are used to
disable the charge and discharge FET gate drivers. Bits 2 to 7 are set by internal hardware only. Bits 2 and 3 are
cleared by hardware only. Bits 4 to 7 are cleared by writing the register with a 0 in the bit position of interest. Writing
a 1 to bits 4 to 7 has no effect on the register. Bits 0 and 1 are set on power-up and a transition from Sleep to
Active modes. While in Active mode, these bits can be cleared to disable the FET gate drive of either or both FETs.
Setting these bits only turns on the FETs if there are no protection faults.
ADDRESS 00h
BIT 7
OV
BIT 6
UV
BIT 5
COC
BIT 4
DOC
BIT 3
CC
BIT 2
DC
BIT 1
CE
BIT 0
DE
OV —Overvoltage Flag. OV is set to indicate that an overvoltage condition has been detected. The voltage on V IN
has persisted above the V OV threshold for t OV . OV remains set until written to a 0 or cleared by a power-on reset or
transition to Sleep mode.
UV —Undervoltage Flag. UV is a read-only mirror of the UVF flag located in the status register. UVF is set to
indicate that V IN < V UV . The UVF bit must be written to 0 to clear UV and UVF.
COC —Charge Overcurrent Flag. COC is set to indicate that an overcurrent condition has occurred during a charge.
The sense-resistor voltage has persisted above the V COC threshold for t OC . COC remains set until written to a 0,
cleared by a power-on reset, or transition to Sleep mode.
DOC —Discharge Overcurrent Flag. DOC is set to indicate that an overcurrent condition has occurred during a
discharge. The sense-resistor voltage has persisted above the V DOC threshold for t OC . DOC remains set until written
to a 0, cleared by a power-on reset, or transition to Sleep mode.
CC —Charge Control Flag. CC indicates the logic state of the CC pin driver. CC flag is set to indicate CC high. CC
flag is cleared to indicate CC low. CC flag is read only.
DC —Discharge Control Flag. DC indicates the logic state of the DC pin driver. DC flag is set to indicate DC high.
DC flag is cleared to indicate DC low. DC flag is read only.
CE —Charge Enable Bit. CE must be set to allow the CC pin to drive the charge FET to the on state. CE acts as an
enable input to the safety circuit. If all safety conditions are met AND CE is set, the CC pin drives to V CP . If CE is
cleared, the CC pin is driven low to disable the charge FET.
DE —Discharge Enable Bit. DE must be set to allow the DC pin to drive the discharge FET to the on state. DE acts
as an enable input to the safety circuit. If all safety conditions are met AND DE is set, the DC pin drives to V CP . If
DE is cleared, the DC pin is driven low to disable the charge FET.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2784K | 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 |
| DS2786 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Standalone OCV-Based Fuel Gauge |
| DS2786_09 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Stand-Alone OCV-Based Fuel Gauge |
| DS2786B | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Stand-Alone OCV-Based Fuel Gauge |
| DS2786BEVKIT+ | 制造商:Maxim Integrated Products 功能描述:STANDALONE OCV-BASED FUEL GAUGE - Boxed Product (Development Kits) |
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