参数资料
型号: ADM1029ARQZ-R7
厂商: ON Semiconductor
文件页数: 43/50页
文件大小: 402K
描述: IC SENSOR 2TEMP/FAN CTRL 24QSOP
产品变化通告: QSOP 24ld Pkg (MSL) Change 17/Jun/2010
标准包装: 1,000
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: 0°C ~ 100°C,外部传感器
精确度: ±1°C 本地,±3°C 远程
拓扑: ADC,风扇控制,寄存器库
输出类型: 开路漏极
输出警报:
输出风扇:
电源电压: 3 V ~ 5.5 V
工作温度: 0°C ~ 100°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)
ADM1029
http://onsemi.com
43
Table 43. REGISTER 18H, 19H  FAN X* FAULT ACTION (POWER-ON DEFAULT BFH)
Bit
Name
R/W
Description
0
Assert CFAULT
 on Fault = 1
R/W
If this bit is set, CFAULT
 will be asserted when there is a fault (Tach or
Pins 2/23) on Fan x*.
1
Assert INT
 on Fault = 1
R/W
If this bit is set, INT
 will be asserted when there is a fault (Tach or
Pins 2/23) on Fan x*.
2
Assert CFAULT
 on Hot Unplug = 1
R/W
If this bit is set, CFAULT
 will be asserted when there is a hot unplug event
on Fan x*.
3
Assert INT
 on Hot Unplug = 1
R/W
If this bit is set, INT
 will be asserted when there is a hot unplug event on
Fan x*.
4
Thermal Override in Sleep = 1
R/W
If Bit 4 in Fan x* Status Register is set then Fan x* will go to Alarm
Speed if an overtemperature event is detected as per settings in Temp x*
Fault Action Registers, while this bit is set.
5
Drive Fault_ on Fault_L = 1
R/W
If Bit 3 or Bit 6 of Reg 10 is set, drive Pins 2, 23 low if a fault is generated.
6
HotPlug Speed on CFAULT
 in = 0
R/W
When this bit is set, Fan x* will go to Hot-Plug Speed when CFAULT
 is
pulled low externally.
7
Alarm on CFAULT
 = 1
R/W
When this bit is set, Fan x* will go to Alarm Speed when CFAULT
 is
pulled low externally.
* x denotes the fan number. Register 18h is for Fan 1 and Register 19h is for Fan 2.
Table 44. REGISTER 20H, 21H  FAN X* EVENT MASK (POWER-ON DEFAULT FFH)
Bit
Name
R/W
Description
0
Fan 1 = 1
R/W
If a fault (Tach or Pins 2/23) is detected on Fan x*, Fan 1 will be driven to
Alarm Speed when this bit is set.
1
Fan 2 = 1
R/W
If a fault (Tach or Pins 2/23) is detected on Fan x*, Fan 2 will be driven to
Alarm Speed when this bit is set.
2
Reserved
R
Unused. Will read back 1.
3
Reserved
R
Unused. Will read back 1.
4
Reserved
R
Unused. Will read back 1.
5
Reserved
R
Unused. Will read back 1.
6
Reserved
R
Unused. Will read back 1.
7
Reserved
R
Unused. Will read back 1.
* x denotes the fan number. Register 20h is for Fan 1 and Register 21h is for Fan 2.
Table 45. REGISTER 60H, 61H  FAN X* MINIMUM/ALARM SPEED (POWER-ON DEFAULT FFH)
Bit
Name
R/W
Description
30
Fan x Minimum Speed
R/W
This nibble contains the Normal speed value for Fan x*. When in
automatic fan this nibble will contain the minimum speed at which Fan x*
will run. The power-up default for the Min Speed should be 5hex which
corresponds to 33% PWM duty cycle.
74
Fan x Alarm Speed
R/W
This nibble contains the Alarm speed value for Fan x*.
* x denotes the fan number. Register 60h is for Fan 1 and 61h is for Fan 2.
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