- 您现在的位置：买卖IC网 > PDF目录16038 > LTC2942CDCB#TRPBF (Linear Technology)IC FUEL/GAS GAUGE LI-ION 6DFN PDF资料下载
参数资料
| 型号： | LTC2942CDCB#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 13/18页 |
| 文件大小： | 0K |
| 描述： | IC FUEL/GAS GAUGE LI-ION 6DFN |
| 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） |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | 0°C ~ 70°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： | 带卷 (TR) |
| 配用： | DC1496B-B-ND - BOARD EVAL LTC2942 |
LTC2942
APPLICATIONS INFORMATION
dressed is considered a slave. The LTC2942 always acts
as a slave.
Figure 3 shows an overview of the data transmission for
fast and standard mode on the I 2 C bus.
START and STOP Conditions
When the bus is idle, both SCL and SDA must be HIGH. A
bus master signals the beginning of a transmission with a
START condition by transitioning SDA from HIGH to LOW
while SCL is HIGH. When the master has finished com-
municating with the slave, it issues a STOP condition by
transitioning SDA from LOW to HIGH while SCL is HIGH.
The bus is then free for another transmission. When
the bus is in use, it stays busy if a repeated START (Sr)
is generated instead of a STOP condition. The repeated
START (Sr) conditions are functionally identical to the
START (S).
Data Transmission
After a START condition, the I 2 C bus is considered busy
and data transfer begins between a master and a slave.
As data is transferred over I 2 C in groups of nine bits
(eight data bits followed by an acknowledge bit), each
group takes nine SCL cycles. The transmitter releases
the SDA line during the acknowledge clock pulse and the
receiver issues an acknowledge (ACK) by pulling SDA
LOW or leaves SDA HIGH to indicate a not acknowledge
(NACK) condition. Change of data state can only happen
while SCL is LOW.
Write Protocol
The master begins a write operation with a START condi-
tion followed by the seven bit slave address 1100100
and the R/ W bit set to zero, as shown in Figure 4. The
LTC2942 acknowledges this by pulling SDA LOW and
then the master sends a command byte which indicates
which internal register the master is to write. The LTC2942
acknowledges and latches the command byte into its
internal register address pointer. The master delivers the
data byte, the LTC2942 acknowledges once more and
latches the data into the desired register. The transmission
is ended when the master sends a STOP condition. If the
master continues by sending a second data byte instead
of a STOP, the LTC2942 acknowledges again, increments
its address pointer and latches the second data byte in
the following register, as shown in Figure 5.
SDA
a6 - a0
b7 - b0
b7 - b0
SCL
1-7
8
9
1-7
8
9
1-7
8
9
S
P
START
CONDITION
ADDRESS
R/W
ACK DATA ACK
Figure 3. Data Transfer Over I 2 C or SMBus
DATA
ACK
STOP
CONDITION
2942 F03
S
ADDRESS
W
A
REGISTER
A
DATA
A
P
S
ADDRESS
W
A
REGISTER
A
DATA
A
DATA
A
P
1100100
0
0
01h
0
FCh
0
1100100
0
0
02h
0
F0h
0
01h
0
2942 F04
2942 F05
FROM MASTER TO SLAVE
FROM SLAVE TO MASTER
A: ACKNOWLEDGE (LOW)
A : NOT ACKNOWLEDGE (HIGH)
S: START CONDITION
P: STOP CONDITION
Figure 5. Writing F001h to the LTC2942
Accumulated Charge Register (C, D)
R: READ BIT (HIGH)
W : WRITE BIT (LOW)
Figure 4. Writing FCh to the LTC2942 Control Register (B)
2942fa
13
相关PDF资料 |
PDF描述 |
|---|---|
| MAX6753KA46+T | IC MPU/RESET CIRC SOT23-8 |
| 415-0029-018 | CABLE SMA/SMA 18" RG-316 |
| MAX6751KA29+T | IC MPU/RESET CIRC SOT23-8 |
| LTC4054ES5-4.2#TRM | IC CHARGR BATTERY L-ION TSOT23-5 |
| LTC4054XES5-4.2#TRMPBF | IC CHARGR BATTERY L-ION TSOT23-5 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC2942IDCB#PBF | 制造商:Linear Technology 功能描述:BATTERY GAS GAUGE LI-ION 5.5V DFN-6 制造商:Linear Technology 功能描述:BATTERY GAS GAUGE, LI-ION, 5.5V, DFN-6 制造商:Linear Technology 功能描述:BATTERY GAS GAUGE, LI-ION, 5.5V, DFN-6, Battery Management Function:Fuel Gauge, Status Monitor, Battery Type:Li-Ion, Supply Voltage Min:2.7V, Supply Voltage Max:5.5V, Battery IC Case Style:DFN, No. of Pins:6, MSL:MSL 1 - Unlimited , RoHS Compliant: Yes 制造商:Linear Technology 功能描述:MS-System Monitor/Other, Cut Tape Battery Gas Gauge with Temperature & Voltage M |
| LTC2942IDCB#TRMPBF | 功能描述:IC FUEL/GAS GAUGE LI-ION 6DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 其它有关文件:STC3100 View All Specifications 特色产品:STC3100 - Battery Monitor IC 标准包装:4,000 系列:- 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:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-MiniSO 包装:带卷 (TR) 其它名称:497-10526-2 |
| LTC2942IDCB#TRPBF | 功能描述:IC FUEL/GAS GAUGE LI-ION 6DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
| LTC2942IDCB-1#PBF | 制造商:Linear Technology 功能描述:BATTERY FUEL GAUGE LI-ION 5.5V DFN-6 制造商:Linear Technology 功能描述:IC, BATTERY FUEL GAUGE, LI-ION, 5.5V, DFN-6, Battery Management Function:Fuel Gauge, Charge Controller, Battery Type:Li-Ion, Supply Voltage Min:2.7V, Supply Voltage Max:5.5V, Battery IC Case Style:DFN, No. of Pins:6 , RoHS Compliant: Yes |
| LTC2942IDCB-1#PBF | 制造商:Linear Technology 功能描述:IC BATTERY FUEL GAUGE LI-ION 5.5V DFN-6 |
发布紧急采购，3分钟左右您将得到回复。