參數(shù)資料
型號(hào): MAX6615AEE+
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 溫度/濕度傳感器
英文描述: Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs
中文描述: DIGITAL TEMP SENSOR-SERIAL, 8BIT(s), RECTANGULAR, SURFACE MOUNT
封裝: 0.150 INCH, 0.635 MM PITCH, MO-137-AB, QSOP-16
文件頁(yè)數(shù): 6/20頁(yè)
文件大?。?/td> 186K
代理商: MAX6615AEE+
MAX6615/MAX6616
Dual-Channel Temperature Monitors and
Fan-Speed Controllers with Thermistor Inputs
14
______________________________________________________________________________________
Table 3. Register Map (continued)
R/
W ADD
POR
STATE
FUNCTION
D7
D6
D5
D4
D3
D2
D1
D0
R/W
1Ch
0000
Fan status
byte
1 = fan 1
failure
1 = fan 2
failure
1 =
disabled
fan 1
tach
1 =
disabled
fan 2 tach
1 =
measure
fan 1
when it is
full speed
1 =
measure
fan 2
when it is
full speed
1 = mask
FAN_FAIL
pin
1 = fan 1
fail sets
fan 2
100%
R
1Eh
0000
Channel 1
temp LSBs
MSB
(1/2°C)
LSB
(1/8°C)
———
R
1Fh
0000
Channel 2
temp LSBs
MSB
(1/2°C)
LSB
(1/8°C)
———
R
FDh
0000
0001
Read device
revision
00
0
1
R
FEh
0110
1000
Read device
ID
01
1
0
1
0
R
FFh
0100
1101
Read
manufacturer
ID
01
0
1
0
1
*
GPIO0 POR values are set by PRESET.
Table 4. Configuration Byte Definition (02h)
BIT
NAME
POR
STATE
FUNCTION
7
RUN/STANDBY
0
Set to zero for normal operation. Set to 1 to suspend conversions and PWM outputs.
6
POR
0
Set to 1 to perform reset of all device registers.
5
TIMEOUT
0
Set TIMEOUT to zero to enable SMBus timeout for prevention of bus lockup. Set to 1 to
disable this function.
4
FAN1 PWM INVERT
1
Set fan PWM invert to zero to force PWM1 low when the duty cycle is 100%. Set to 1 to
force PWM1 high when the duty cycle is 100%.
3
FAN2 PWM INVERT
1
Set fan PWM invert to zero to force PWM2 low when the duty cycle is 100%. Set to 1 to
force PWM2 high when the duty cycle is 100%.
2
MIN DUTY CYCLE
0
Set min duty cycle to zero for a 0% duty cycle when the measured temperature is below the
fan-temperature threshold in automatic mode. When the temperature equals the fan-
temperature threshold, the duty cycle is the value in the fan-start duty-cycle register, and it
increases with increasing temperature.
Set min duty cycle to 1 to force the PWM duty cycle to the value in the fan-start duty-cycle
register when the measured temperature is below the fan-temperature threshold. As the
temperature increases above the temperature threshold, the duty cycle increases as
programmed.
1
TEMPERATURE
SOURCE SELECT
0
Selects either local or remote 2 as the source for temperature channel 2 register data.
When D1 = 0, the MAX6615/MAX6616 measure remote 2 and when D1 = 1, the
MAX6615/MAX6616 measure the internal die temperature.
0
SPIN-UP DISABLE
0
Set spin-up disable to 1 to disable spin-up. Set to zero for normal fan spin-up.
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