参数资料
型号: ADT7462ZEVB
厂商: ON Semiconductor
文件页数: 71/82页
文件大小: 0K
描述: BOARD EVALUATION FOR ADT7462
产品变化通告: MFG CHG Notification ADI to ON Semi
标准包装: 1
类型: 温度传感器
适用于相关产品: ADT7462
所含物品: 评估板
其它名称: EVAL-ADT7462EBZ
EVAL-ADT7462EBZ-ND
ADT7462
Table 64. REGISTER 0X26 ? PWM3, PWM4 FREQUENCY (Note 1)
Bit
0
1
[4:2]
[7:5]
Name
Min 3
Min 4
Low Freq 3
Low Freq 4
R/W
R/W
R/W
R/W
R/W
Description
When the ADT7462 is in automatic fan control mode, this bit defines whether PWM3 is off
(0% duty cycle) or at minimum PWM3 duty cycle when the controlling temperature is below its
T MIN ? hysteresis value.
0 = 0% duty cycle below T MIN ? hysteresis (default); 1 = minimum PWM3 duty cycle below
T MIN ? hysteresis.
When the ADT7462 is in automatic fan control mode, this bit defines whether PWM4 is off
(0% duty cycle) or at minimum PWM4 duty cycle when the controlling temperature is below its
T MIN ? hysteresis value.
0 = 0% duty cycle below T MIN ? hysteresis (default); 1 = minimum PWM4 duty cycle below
T MIN ? hysteresis.
These bits set the frequency of PWM3 when configured in low frequency mode.
000 = 11 Hz
001 = 14.7 Hz
010 = 22.1 Hz
011 = 29.4 Hz
100 = 35.3 Hz (Default)
101 = 44.1 Hz
110 = 58.8 Hz
111 = 88.2 Hz
These bits set the frequency of PWM4 when configured in low frequency mode.
000 = 11 Hz
001 = 14.7 Hz
010 = 22.1 Hz
011 = 29.4 Hz
100 = 35.3 Hz (Default)
101 = 44.1 Hz
110 = 58.8 Hz
111 = 88.2 Hz
1. POR = 0x90, Lock = Y, SW Reset = Y.
Table 65. MINIMUM PWMX DUTY CYCLE (Note 1)
Register Address
0x28
0x29
0x2A
0x2B
R/W
R/W
R/W
R/W
R/W
Description
Minimum PWM1 duty cycle
Minimum PWM2 duty cycle
Minimum PWM3 duty cycle
Minimum PWM4 duty cycle
POR Default
0x80
0x80
0x80
0x80
1. Lock = Y, SW Reset = Y.
Table 66. REGISTER 0X2C ? MAXIMUM PWM DUTY CYCLE (Note 1)
Bit
[7:0]
Name
Maximum PWM
Duty Cycle
R/W
R/W
Description
This register sets the maximum % duty cycle output in automatic fan speed control mode for all
four PWM outputs.
1. POR = 0xC0, Lock = Y, SW Reset = Y.
Table 67. REGISTER 0X30 ? THERMAL MASK REGISTER 1 (Note 1)
Bit
0
1
2
3
4
5
6
7
Name
Reserved
Local Temp
Remote 1 Temp
Remote 2 Temp
Remote 3 Temp
Diode 1 Error
Diode 2 Error
Diode 3 Error
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Reserved for future use.
1 masks ALERTs for an out-of-limit condition on the local temperature channel.
1 masks ALERTs for an out-of-limit condition on the Remote 1 temperature channel.
1 masks ALERTs for an out-of-limit condition on the Remote 2 temperature channel.
1 masks ALERTs for an out-of-limit condition on the Remote 3 temperature channel.
1 masks ALERTs for an open or short condition on the Remote 1 channel.
1 masks ALERTs for an open or short condition on the Remote 2 channel.
1 masks ALERTs for an open or short condition on the Remote 3 channel.
1. POR = 0x00, Lock = N, SW Reset = Y.
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