參數(shù)資料
型號： MAX6698UE99+
廠商： Maxim Integrated
文件頁數(shù)： 8/24頁
文件大?。?/td> 321K
描述： IC TEMP MONITOR 7CH 16-TSSOP
產(chǎn)品培訓模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝： 96
功能： 溫度監(jiān)控系統(tǒng)（傳感器）
傳感器類型： 內(nèi)部和外部
感應溫度： -40°C ~ 125°C
精確度： ±3.5°C 本地（最大），±3°C 遠程（最大）
拓撲： ADC，緩沖器，多路復用器，寄存器庫
輸出類型： 2 線串行，I²C?/SMBUS?
輸出警報： 是
輸出風扇： 是
電源電壓： 3 V ~ 5.5 V
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： 16-TSSOP（0.173"，4.40mm 寬）
供應商設備封裝： 16-TSSOP
包裝： 管件
for remote diode 1 can be read from the extended tem-
perature register. If extended resolution is desired, the
extended resolution register should be read first. This
prevents the most significant bits from being overwritten
by new conversion results until they have been read. If
the most significant bits have not been read within an
SMBus timeout period (nominally 25ms), normal updat-
ing continues. Table 1 shows themistor voltage data for-
mat. Table 2 shows the main temperature register (high
byte) data format. Table 3 shows the extended resolu-
tion temperature register (low byte) data format.
Diode Fault Detection
If a channels input DXP_ and DXN_ are left open, the
MAX6698 detects a diode fault. An open diode fault
does not cause either ALERT or OVERT to assert. A bit
in the status register for the corresponding channel is
set to 1 and the temperature data for the channel is
stored as all 1s (FFh). It takes approximately 4ms for
the MAX6698 to detect a diode fault. Once a diode fault
is detected, the MAX6698 goes to the next channel in
the conversion sequence. Depending on operating
conditions, a shorted diode may or may not cause
ALERT or OVERT to assert, so if a channel will not be
used, disconnect its DXP and DXN inputs.
Alarm Threshold Registers
There are 11 alarm threshold registers that store over-
temperature ALERT and OVERT threshold values.
Seven of these registers are dedicated to store one
local alert temperature threshold limit, three remote alert
temperature threshold limits, and three thermistor volt-
age threshold limits (see the ALERT Interrupt Mode sec-
tion). The remaining four registers are dedicated to
remote-diode channel 1, and three thermistor channels
1, 2, and 3 to store overtemperature threshold limits
(see the OVERT Overtemperature Alarm section).
Access to these registers is provided through the
SMBus interface.
7-Channel Precision Remote-Diode, Thermistor,
and Local Temperature Monitor
8  _______________________________________________________________________________________
Figure 2. SMBus Protocols
Write Byte Format
Read Byte Format
Send Byte Format
Receive Byte Format
Slave Address: equiva-
lent to chip-select line of
a 3-wire interface
Command Byte: selects which
register you are writing to
Data Byte: data goes into the register
set by the command byte (to set
thresholds, configuration masks, and
sampling rate)
Slave Address: equiva-
lent to chip-select line
Command Byte: selects
which register you are
reading from
Slave Address: repeated
due to change in data-
flow direction
Data Byte: reads from
the register set by the
command byte
Command Byte: sends com-
mand with no data, usually
used for one-shot command
Data Byte: reads data from
the register commanded
by the last read byte or
write byte transmission;
also used for SMBus alert
response return address
S = Start condition
Shaded = Slave transmission
P = Stop condition
/// = Not acknowledged
S
ADDRESS
RD
ACK
DATA
///
P
7 bits
8 bits
WR
S
ACK
COMMAND
ACK
P
8 bits
ADDRESS
7 bits
P
1
ACK
DATA
8 bits
ACK
COMMAND
8 bits
ACK
WR
ADDRESS
7 bits
S
S
ADDRESS
WR
ACK
COMMAND
ACK
S
ADDRESS
7 bits
8 bits
7 bits
RD
ACK
DATA
8 bits
///
P
V
REXT
DIGITAL OUTPUT
1.000
1100 1000
0.500
0110 0100
0.250
0011 0010
0.055
0000 1011
0.050
0000 1010
0.005
0000 0001
0.000
0000 0000
Table 1. Thermistor Voltage Data Format
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相關代理商/技術(shù)參數(shù)
參數(shù)描述
MAX6698UE99+ 功能描述:板上安裝溫度傳感器 7Ch Precision Remote Diode Thermistor RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor
MAX6698UE99+T 功能描述:板上安裝溫度傳感器 7Ch Precision Remote Diode Thermistor RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor
MAX6698UE99-T 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor
MAX6698UE9C 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor
MAX6698UE9C+ 功能描述:板上安裝溫度傳感器 7Ch Precision Remote Diode Thermistor RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor
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