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参数资料
| 型号： | LTC6803IG-3#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 18/40页 |
| 文件大小： | 0K |
| 描述： | IC MONITOR BATT STACK 44-SSOP |
| 标准包装： | 2,000 |
| 功能： | 电池监控器，过压/欠压保护 |
| 电池化学： | 多化学成分，超级电容器 |
| 电源电压： | 4 V ~ 55 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-FSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 44-SSOP |
| 包装： | 带卷 (TR) |
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LTC6803-1/LTC6803-3
OPERATION
An example to calculate the PEC is listed in Table 1 and
Figure 5. The PEC of the 1 byte data 0x01 is computed as
0xC7 after the last bit of the byte clocked in. For multiple
byte data, the PEC is valid at the end (LSB) of the last byte.
LTC6803 calculates PEC byte for any command or data
received and compares it with the PEC byte following the
command or data. The command or data is regarded as
valid only if the PEC bytes match. LTC6803 also attaches
the calculated PEC byte at the end of the data it shifts out.
For daisy-chained LTC6803-1/LTC6803-3, each device
computes the PEC byte based on the data it sends out
or receives for itself. The data passing through for other
devices do affect its PEC. On a read command, each device
shifts its data out with, and then shifts out the PEC byte it
computed, MSB first. For example, when reading the flag
registers from two stacked devices (bottom device A and
top device B), the data will be output in the following order:
FLGR0(A), FLGR1(A), FLGR2(A), PEC(A), FLGR0(B),
FLGR1(B), FLGR2(B), PEC(B )
On a write command, each device receives its data and
then the PEC byte, MSB first. For example, when writing
configuration registers to two stacked devices (bottom
device A and top device B), the data will be input in the
following order:
CFGRR0(B), CFGR1(B),……, CFGR5(B), PEC(B),
CFGR0(A), CFGR1(A),……, CFGR5(A), PEC(A)
Broadcast Commands: A broadcast command is one to
which all devices on the bus will respond, regardless of
Table 1. Procedure to Calculate PEC Byte
device address. See the Bus Protocols and Commands
sections.
In daisy-chained configurations, all devices in the chain
receive the command bytes simultaneously. For example,
to initiate ADC conversions in a stack of devices, a single
STCVAD command is sent, and all devices will start con-
versions at the same time. For read and write commands,
a single command is sent, and then the stacked devices
effectively turn into a cascaded shift register, in which
data is shifted through each device to the next higher (on
a write) or the next lower (on a read) device in the stack.
See the Serial Command Examples section.
Polling Methods: For ADC conversions, three methods can
be used to determine ADC completion. First, a controller
can start an ADC conversion and wait for the specified
conversion time to pass before reading the results. The
second method is to hold CSBI low after an ADC start
command has been sent. The ADC conversion status will
be output on SDO (Figure 6). A problem with the second
method is that the controller is not free to do other serial
communication while waiting for ADC conversions to
complete. The third method overcomes this limitation.
The controller can send an ADC start command, perform
other tasks, and then send a poll ADC converter status
(PLADC) command to determine the status of the ADC
conversions (Figure 7). For OV/UV interrupt status, the poll
interrupt status (PLINT) command can be used to quickly
determine whether any cell in a stack is in an overvoltage
or undervoltage condition (Figure 7).
CLOCK
CYCLE
0
1
2
3
4
5
6
7
DIN
0
0
0
0
0
0
0
1
IN0
0
1
0
0
0
0
0
1
IN1
1
1
1
0
0
0
0
1
IN2
0
0
1
1
0
0
0
1
PEC[7]
0
1
0
0
0
0
0
0
PEC[6]
1
0
0
0
0
0
0
1
PEC[5]
0
0
0
0
0
0
1
1
PEC[4]
0
0
0
0
0
1
1
0
PEC[3]
0
0
0
0
1
1
0
0
PEC[2]
0
0
0
1
1
0
0
0
PEC[1]
0
1
1
1
0
0
0
0
PEC[0]
1
0
1
0
0
0
0
0
8
1
1
0
0
0
1
1
1
680313fa
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相关代理商/技术参数 |
参数描述 |
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| LTC6803IG-4#PBF | 功能描述:IC MONITOR BATT STACK MC 44-SSOP 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 |
| LTC6803IG-4#TRPBF | 功能描述:IC MONITOR BATT STACK 44-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
| LTC6803IG-4PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Multicell Battery Stack Monitor |
| LTC6804-1 | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Effciency Bidirectional Multicell Battery Balancer |
| LTC6804-2 | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Effciency Bidirectional Multicell Battery Balancer |
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