参数资料
型号: ADT7490ARQZ-REEL7
厂商: ON Semiconductor
文件页数: 48/75页
文件大小: 0K
描述: IC THERM MON FAN CTRLR 24-QSOP
产品变化通告: MFG CHG Notification ADI to ON Semi
标准包装: 1,000
系列: dBCool®
功能: 风扇控制,温度监控器
传感器类型: 内部和外部
感应温度: -40°C ~ 125°C
精确度: ±1.5°C(最小值)
拓扑: ADC,比较器,风扇速度计数器,多路复用器,寄存器库
输出类型: SMBus?
输出警报:
输出风扇:
电源电压: 3 V ~ 3.6 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 24-SSOP(0.154",3.90mm 宽)
供应商设备封装: 24-QSOP
包装: 带卷 (TR)
ADT7490
Table 44. ADT7490 REGISTERS (continued)
Addr
0x8F
0x90
0x94
0x95
0x96
0x97
?
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0x41
Desc
Dynamic
T MIN
Control
Reg. 2
Dynamic
T MIN
Control
Reg. 3
PECI0
Temp.
Offset
PECI1
Temp.
Offset
PECI2
Temp.
Offset
PECI3
Temp.
Offset
?
Bit 7
CYR2
PECI
7
7
7
7
?
Bit 6
CYR2
PHTP
6
6
6
6
0x74
Bit 5
CYL
CYP
5
5
5
5
OOL
Bit 4
CYL
CYP
4
4
4
4
R2T
Bit 3
CYL
CYP
3
3
3
3
LT
Bit 2
CYR1
RES
2
2
2
2
R1T
Bit 1
CYR1
RES
1
1
1
1
+5V IN
Bit 0
CYR1
RES
0
0
0
0
V CC
De-
fault
0x00
0x00
0x00
0x00
0x00
0x00
V CCP
Lock-
able
Yes
Yes
Yes
Yes
Yes
Yes
+2.5V IN /
THERM
Table 45. REGISTER 0x10 ? CONFIGURATION REGISTER 6 (POWER-ON DEFAULT = 0x00)
Bit No.
[0]
[1]
[2]
[3]
[4]
[5]
[6]
Mnemonic
SLOW
Remote 1
SLOW
Local
SLOW
Remote 2
Res
Res
Res
V CCP Low
R/W (Note 1)
R/W
R/W
R/W
N/A
N/A
N/A
R/W
Description
When this bit is set, fan smoothing times are multiplied x4 for Remote 1 temperature channel
(as defined in Register 0x62).
When this bit is set, fan smoothing times are multiplied x4 for local temperature channel
(as defined in Register 0x63).
When this bit is set, fan smoothing times are multiplied x4 for Remote 2 temperature channel
(as defined in Register 0x63).
Reserved
Reserved
Reserved
V CCP Low = 1. When the power is supplied from 3.3 V STANDBY and the core voltage
(V CCP ) drops below its V CCP low limit value (Register 0x46), the following occurs:
Status Bit 1 in Status Register 1 is set.
SMBALER T is generated, if enabled.
PROCHOT monitoring is disabled.
Everything is re-enabled once V CCP increases above the V CCP low limit.
When V CCP increases above the low limit:
PROCHOT monitoring is enabled.
Fans return to their programmed state after a spin-up cycle.
[7]
ExtraSlow
R/W
When this bit is set, all fan smoothing times are increased by a further 39.2%
1. This register becomes read-only when the Configuration Register 1 (0x40) Lock bit is set to 1. Any subsequent attempts to write to this
register fail.
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