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参数资料
| 型号： | DS2778G+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 25/46页 |
| 文件大小： | 0K |
| 描述： | IC FUEL GAUGE LI+ 2CELL 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： | 4 V ~ 9.2 V |
| 工作温度： | -20°C ~ 70°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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2-Cell, Stand-Alone, Li+ Fuel-Gauge IC with
Protector and Optional SHA-1 Authentication
Protection, Status, and Control Registers
Protection Register Format
The Protection register reports events detected by the Li+ safety circuit on bits [3:2]. Bits 0 and 1 are used to disable
the charge and discharge FET gate drivers. Bits [3:2] are set by internal hardware only. Bits 2 and 3 are cleared by
hardware only. 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.
Protection Register (00h)
BIT 7
X
BIT 6
X
BIT 5
X
BIT 4
X
BIT 3
CC
BIT 2
DC
BIT 1
CE
BIT 0
DE
Bits 7 to 4: Reserved.
Bit 3: Charge Control Flag (CC). CC indicates the logic state of the CC pin driver. The CC flag is set to indicate CC
high and is cleared to indicate CC low. The CC flag is read-only.
Bit 2: Discharge Control Flag (DC). DC indicates the logic state of the DC pin driver. DC flag is set to indicate DC
high and is cleared to indicate DC low. DC flag is read-only.
Bit 1: Charge-Enable Bit (CE). 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. The power-up default state of CE is 1.
Bit 0: Discharge-Enable Bit (DE). 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 discharge FET. The power-up default state of DE is 1.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2778K | 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 |
| DS2780 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Stand-Alone Fuel Gauge IC |
| DS2780_09 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Standalone Fuel Gauge IC |
| DS2780E | 制造商:Maxim Integrated Products 功能描述:STANDALONG FUELD GAUGE TSSOP - Rail/Tube |
| DS2780E/R | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Stand-Alone Fuel Gauge IC |
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