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参数资料
| 型号： | ADT7475ARQZ-RL7 |
| 厂商： | ON Semiconductor |
| 文件页数： | 56/58页 |
| 文件大小： | 0K |
| 描述： | IC REMOTE THERMAL CTLR 16QSOP |
| 产品变化通告： | MFG CHG Notification ADI to ON Semi Product Discontinuation 30/Sept/2011 |
| 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，外部传感器 |
| 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： | 无 |
| 输出风扇： | 是 |
| 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： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-QSOP |
| 包装： | 带卷 (TR) |
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ADT7475
Table 83. REGISTER 0X7B ? TACH PULSES PER REVOLUTION REGISTER (POWER-ON DEFAULT = 0X55)
Bit No.
<1:0>
<3:2>
<5:4>
<7:6>
Mnemonic
FAN1
FAN2
FAN3
FAN4
R/W
R/W
R/W
R/W
R/W
Description
Sets the number of pulses to be counted when measuring Fan 1 speed. Can be used to
determine fan pulses per revolution for an unknown fan type.
Pulses Counted
00 = 1
01 = 2 (Default)
10 = 3
11 = 4
Sets the number of pulses to be counted when measuring Fan 2 speed. Can be used to
determine fan pulses per revolution for an unknown fan type.
Pulses Counted
00 = 1
01 = 2 (Default)
10 = 3
11 = 4
Sets the number of pulses to be counted when measuring Fan 3 speed. Can be used to
determine fan pulses per revolution for an unknown fan type.
Pulses Counted
00 = 1
01 = 2 (Default)
10 = 3
11 = 4
Sets the number of pulses to be counted when measuring Fan 4 speed. Can be used to
determine fan pulses per revolution for an unknown fan type.
Pulses Counted
00 = 1
01 = 2 (Default)
10 = 3
11 = 4
Table 84. REGISTER 0X7C ? CONFIGURATION REGISTER 5 (POWER-ON DEFAULT = 0X00) (Note 1)
Bit No.
<0>
<1>
Mnemonic
TWOS
COMPL
TempOffset
R/W
R/W
R/W
Description
Twos complement = 1, sets the temperature range to twos complement temperature range.
Twos complement = 0, changes the temperature range to Offset 64. When this bit is changed,
the ADT7475 interprets all relevant temperature register values as defined by this bit.
TempOffset = 0, sets offset range to ? 63 ° C to +64 ° C with 0.5 ° C resolution.
TempOffset = 1, sets offset range to ? 63 ° C to +127 ° C with 1 ° C resolution.
These settings apply to the 0x70, 0x71, and 0x72 registers (Remote 1, local, and Remote 2
temperature offset registers).
<2>
<3>
<4>
<5>
<6>
<7>
GPIOD
GPIOP
RES
R1 THERM
Local
THERM
R2 THERM
R/W
R/W
R/W
R/W
R/W
GPIO direction. When the GPIO function is enabled, this determines whether the GPIO is an
input (0) or an output (1).
GPIO polarity. When the GPIO function is enabled and is programmed as an output, this bit
determines whether the GPIO is active low (0) or high (1).
Reserved.
R1 THERM = 0, THERM temperature limit functionality is enabled for the Remote 1
temperature channel.
THERM can also be disabled on any channel by the f ollowing :
In offset 64 mode, writing ? 64 ° C to the appropriate THERM temperature limit.
In twos complement mode, writing ? 128 ° C to the appropriate THERM temperature limit.
Local THERM = 0, THERM temperature limit functionality enabled for local temperature
channel .
THERM can also be disabled on any channel by the following:
In Offset 64 mode, writing ? 64 ° C to the appropriate THERM temperature limit.
In twos complement mode, writing ? 128 ° C to the appropriate THERM temperature limit.
R2 THERM = 0, THERM temperature limit functionality enabled for Remote 2 temperature
channel .
THERM can also be disabled on any channel by the following:
In offset 64 mode, writing 64 ° C to the appropriate THERM temperature limit.
In twos complement mode, writing 128 ° C to the appropriate THERM temperature limit.
1. These registers become read-only when the Configuration Register 1 Lock bit is set to 1. Any subsequent attempts to write to these registers fail.
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| ADT7476AARQZ-R | 功能描述:板上安装温度传感器 MONITORS 5V/4 FANS RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
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