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参数资料
| 型号： | LTC2942IDCB#TRMPBF |
| 厂商： | Linear Technology |
| 文件页数： | 14/18页 |
| 文件大小： | 0K |
| 描述： | IC FUEL/GAS GAUGE LI-ION 6DFN |
| 标准包装： | 1 |
| 功能： | 燃料，电量检测计/监控器 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-WFDFN 裸露焊盘 |
| 供应商设备封装： | 6-DFN-EP（2x3） |
| 包装： | 标准包装 |
| 配用： | DC1496B-B-ND - BOARD EVAL LTC2942 |
| 其它名称： | LTC2942IDCB#TRMPBFDKR |
LTC2942
APPLICATIONS INFORMATION
Read Protocol
The master begins a read operation with a START condition
followed by the seven bit slave address 1100100 and the
R/ W bit set to zero, as shown in Figure 6. The LTC2942
acknowledges and then the master sends a command
byte which indicates which internal register the master is
to read. The LTC2942 acknowledges and then latches the
command byte into its internal register address pointer. The
master then sends a repeated START condition followed
by the same seven bit address with the R/ W bit now set
to one. The LTC2942 acknowledges and sends the con-
tents of the requested register. The transmission is ended
when the master sends a STOP condition. If the master
acknowledges the transmitted data byte, the LTC2942
increments its address pointer and sends the contents of
the following register as depicted in Figure 7.
Alert Response Protocol
In a system where several slaves share a common inter-
rupt line, the master can use the alert response address
(ARA) to determine which device initiated the interrupt
(Figure 8).
S
ADDRESS
W
A
REGISTER
A
S
ADDRESS
R
A
DATA
A
P
1100100
0
0
00h
0
1100100
1
0
01h
1
2942 F06
Figure 6. Reading the LTC2942 Status Register (A)
S
ADDRESS
W
A
REGISTER
A
S
ADDRESS
R
A
DATA
A
DATA
A
P
1100100
0
0
08h
0
1100100
1
0
F1h
0
24h
1
2942 F07
Figure 7. Reading the LTC2942 Voltage Register (I, J)
S
ALERT RESPONSE ADDRESS
0001100
R
1
A
0
DEVICE ADDRESS
11001001
A
1
P
2942 F08
Figure 8. LTC2942 Serial Bus SDA Alert Response Protocol
S ADDRESS W A REGISTER A DATA P
10ms
S ADDRESS W A REGISTER A S ADDRESS R A DATA A DATA A P
1100100 0 0
01h
0
BC
1100100 0 0
08h
0
1100100 1 0 F1h 0 80h 1
2942 F09
Figure 9. Voltage Conversion Sequence
S
ADDRESS
W
A
REGISTER
A
S
ADDRESS
R
A
DATA
A
DATA
A
P
1100100
0
0
02h
0
1100100
1
0
80h
0
01h
1
2942 F10
Figure 10. Reading the LTC2942 Accumulated Charge Registers (C, D)
2942fa
14
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| LTC2943CDD#PBF | 制造商:Linear Technology 功能描述:IC GAS GAUGE MULTICELL 8DFN 制造商:Linear Technology 功能描述:BATTERY GAS GAUGE, 20V, DFN-8, Battery Management Function:Fuel Gauge, Battery Type:-, Supply Voltage Min:3.6V, Supply Voltage Max:20V, Battery IC Case Style:DFN, No. of Pins:8, IC Interface Type:I2C, SMBus, Package / Case:8-DFN , RoHS Compliant: Yes |
| LTC2943CDD#TRPBF | 制造商:Linear Technology 功能描述:BATTERY GAS GAUGE, 20V, DFN-8, Battery Management Function:Fuel Gauge, Supply Voltage Min:3.6V, Supply Voltage Max:20V, Battery IC Case Style:DFN, No. of Pins:8, IC Interface Type:I2C, SMBus, Operating Temperature Min:0C , RoHS Compliant: Yes |
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| LTC2945CMS#TRPBF | 制造商:Linear Technology 功能描述:IC POWER MONITOR I2C 12-MSOP 制造商:Linear Technology 功能描述:MS-System Monitor/Other, Wide Range I2C Power Monitor (SDAO) |
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