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参数资料
| 型号： | DS2778G+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 27/46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
Control Register Format
All Control register bits are read and write accessible. The Control register is recalled from parameter EEPROM
memory at power-up. Register bit values can be modified in shadow RAM after power-up. Power-up default values
are saved by using the Copy Data command.
Control Register (60h)
BIT 7
NBEN
BIT 6
UVEN
BIT 5
PMOD
BIT 4
RNAOP
BIT 3
VUV1
BIT 2
VUV0
BIT 1
PSPIO
BIT 0
PSDQ
Bit 7: Negative Blanking Enable (NBEN). A value of 1 enables blanking of negative current values up to 25μV. A
value of 0 disables blanking of negative currents. The power-up default of NBEN = 0.
Bit 6: Undervoltage Enable (UVEN). A value of 1 allows the DS2775–DS2778 to enter sleep mode when the aver-
age of the voltages on V IN1 and V IN2 is less than V UV and DQ is stable at either logic level for t SLEEP . A value of 0
disables transitions to sleep mode during an undervoltage condition.
Bit 5: Power-Mode Enable (PMOD). A value of 1 allows the DS2775–DS2778 to enter sleep mode when DQ is low
for t SLEEP . A value of 0 disables DQ-related transitions to sleep mode.
Bit 4: Read Net Address Op Code (RNAOP). A value of 0 selects 33h as the op code value for the Read Net
Address command. A value of 1 selects 39h as the op code value for the Read Net Address command.
Bit 3 and 2: Undervoltage Threshold (VUV[1:0]). Sets the voltage at which the part detects an undervoltage condi-
tion according to Table 4.
Bit 1: Power-Switch PIO Enable (PSPIO). A value of 1 enables the PIO pin as a power-switch input. A value of 0
disables the power-switch input function on PIO pin. This control is independent of the PSDQ state.
Bit 0: Power-Switch DQ Enable (PSDQ). A value of 1 enables the DQ pin as a power-switch input. A value of 0 dis-
ables the power-switch input function on DQ pin. This control is independent of the PSPIO state. This bit has no
effect in the DS2777/DS2778.
Table 4. Undervoltage Threshold
VUV[1:0] BIT FIELD
00
01
10
11
V UV (V)
2.00
2.30
2.45
2.60
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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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