參數(shù)資料
型號： MAX1669
廠商： Maxim Integrated Products, Inc.
元件分類： 溫度/濕度傳感器
英文描述： Fan Controller and Remote Temperature Sensor with SMBus Serial Interface
中文描述： 風扇控制器及遠端溫度傳感器，帶有SMBus串行接口
文件頁數(shù)： 4/20頁
文件大小： 213K
代理商： MAX1669
Note 1:
Guaranteed but not 100% tested.
Note 2:
T
R
is the junction temperature of the remote diode. The temperature error specification is optimized to and guaranteed for a
diode-connected 2N3906 transistor with ideality factor = 1.013. Variations in the ideality factor “m” of the actual transistor
used will increase the temperature error by *. See the Temperature Error vs. Remote Diode Temperature graph in the
Typical Operating Characteristics
for typical temperature errors using several random 2N3906s. See
Remote Diode
Selection
for remote diode forward-voltage requirements.
Note 3:
The SMBus logic block is a static design that works with clock frequencies down to DC. While slow operation is possible, it
violates the 10kHz minimum clock frequency and SMBus specifications, and may monopolize the bus.
Note 4:
Note that a transition must internally provide at least a hold time in order to bridge the undefined region (300ns max) of
SMBCLK’s falling edge.
Note 5:
Specifications to -40°C are guaranteed by design and not production tested.
.
.
T
m
M
Fan Controller and Remote Temperature Sensor
with SMBus Serial Interface
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS
(V
CC
= +3.3V,
T
A
= -40
°
C to +85
°
C
, unless otherwise noted.) (Note 5)
PARAMETER
ADC AND POWER SUPPLY
Pin forced to 0.4V
ADD_, I/O1, I/O2, SYNC, SMBCLK, SMBDATA;
V
CC
= 3V to 5.5V
ADD_, I/O1, I/O2, SYNC, SMBCLK, SMBDATA;
V
CC
= 3V to 5.5V
Logic inputs forced to V
CC
or GND
Pin forced to 5.5V
μA
-1
1
Logic Input Current
μA
1
ALER
T,
OVERT
, I/O1, I/O2 Output
High Leakage Current
V
0.2
FAN Output Voltage Low
mA
6
SMBDATA,
ALERT
,
OVERT
, I/O1, I/O2
Output Low Sink Current
V
0.8
Logic Input Low Voltage
V
2.1
Logic Input High Voltage
DAC mode, FAN duty factor = 1111b,
I
OUT
= 5mA
DAC mode, any setting, R
L
= 10k
to GND
PWM mode, any setting
PWM mode, V
FAN
forced to 0.4V
PWM mode, V
FAN
forced to 2.9V
Monotonicity guaranteed
T
R
= -55°C to +125°C,diode ideality factor =1.013
Autoconvert mode
From stop bit to conversion complete
Autoconvert mode, average measured over
1sec, FAN output set to 150Hz mode
CONDITIONS
V
2.94
FAN Output Voltage High
%FS
-5
5
FAN Total Unadjusted Error
%
-25
+25
FAN PWM Frequency Error
mA
-10
FAN Output Sink Current
mA
10
FAN Output Source Current
Hz
1.6
2.4
Conversion Rate
FAN OUTPUT
ms
47
Conversion Time
μA
100
Average Operating Supply Current
Bits
°C
V
8
-5
3
Temperature Resolution (Note 1)
Temperature Error, Remote Diode (Note 2)
Supply Voltage Range
5
UNITS
MIN
MAX
DAC mode, FAN duty factor = 0000b,
I
OUT
= -5mA
5.5
SMBus INTERFACE
*
=
k
T
C
R
+
(
)
°
( )
1 013
1
273 15
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1669EEE 制造商:Maxim Integrated Products 功能描述:FAN CONTROLLER AND REMOTE TEMPERATURE SENSOR - Bulk
MAX1669EEE+ 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL 2-WIRE 16QSOP - Rail/Tube
MAX1669EEE+T 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL 2-WIRE 16QSOP - Tape and Reel
MAX1669EEE-T 制造商:Maxim Integrated Products 功能描述:FAN CONTROLLER AND REMOTE TEMPERATURE SENSOR - Tape and Reel
MAX166ACPP 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
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