参数资料
型号: ADT7475EBZEVB
厂商: ON Semiconductor
文件页数: 39/58页
文件大小: 0K
描述: BOARD EVALUATION FOR ADT7475
产品变化通告: MFG CHG Notification ADI to ON Semi
标准包装: 1
系列: dBCool®
类型: 温度传感器
适用于相关产品: ADT7475
所含物品: 评估板
其它名称: EVAL-ADT7475EB
EVAL-ADT7475EB-ND
ADT7475
T RANGE
100%
0%
T MIN
T THERM
THERMAL CALIBRATION
100%
PWM
MIN
PWM
CONFIG
RAMP
S
PWM
GENERATOR
CONTROL
(ACOUSTIC
ENHANCEMENT)
PWM1
REMOTE2 =
CPU TEMP
T MIN T RANGE
THERMAL CALIBRATION
0%
100%
PWM
MIN
TACHOMETER1
MEASUREMENT
PWM
CONFIG
RAMP
TACH1
CPU FAN SINK
MUX
S
PWM
GENERATOR
CONTROL
(ACOUSTIC
ENHANCEMENT)
PWM2
T MIN
T RANGE
0%
PWM
TACHOMETER2
MEASUREMENT
TACH2
LOCAL =
VRM TEMP
THERMAL CALIBRATION
100%
MIN
PWM
CONFIG
RAMP
FRONT CHASSIS
S
PWM
GENERATOR
CONTROL
(ACOUSTIC
ENHANCEMENT)
PWM3
T MIN
T RANGE
0%
TACHOMETER3
AND 4
MEASUREMENT
TACH3
REMOTE1 =
AMBIENT TEMP
REAR CHASSIS
Figure 60. The T HYST Value Applies to Fan On/Off Hysteresis and THERM Hysteresis
Enhanced Acoustics Register 1 (0x62)
Bit 7 (MIN3) = 0, PWM3 is off (0% PWM duty cycle) when
temperature is below T MIN ? T HYST .
Bit 7 (MIN3) = 1, PWM3 runs at PWM3 minimum duty
cycle below T MIN ? T HYST .
Bit 6 (MIN2) = 0, PWM2 is off (0% PWM duty cycle) when
temperature is below T MIN ? T HYST .
Bit 6 (MIN2) = 1, PWM2 runs at PWM2 minimum duty
cycle below T MIN ? T HYST .
Bit 5 (MIN1) = 0, PWM1 is off (0% PWM duty cycle) when
temperature is below T MIN ? T HYST .
Bit 5 (MIN1) = 1, PWM1 runs at PWM1 minimum duty
cycle below T MIN ? T HYST .
Configuration Register 6 (0x10)
Bit 0 (SLOW Remote 1), 1 slows the ramp rate for PWM
changes associated with the Remote 1 temperature channel
by 4.
Bit 1 (SLOW Local), 1 slows the ramp rate for PWM
changes associated with the Local temperature channel by 4.
Bit 2 (SLOW Remote 2), 1 slows the ramp rate for PWM
changes associated with the Remote 2 temperature channel
by 4.
Bit 7 (ExtraSlow), 1 slows the ramp rate for all fans by a
factor of 39.2%.
The following sections list the ramp-up times when the
SLOW bit is set for each temperature monitoring channel.
http://onsemi.com
39
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