- 您现在的位置：买卖IC网 > PDF目录44572 > LM86BIMQX (NATIONAL SEMICONDUCTOR CORP) SPECIALTY ANALOG CIRCUIT, PDSO24 PDF资料下载
参数资料
| 型号： | LM86BIMQX |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO24 |
| 封装： | QSOP-24 |
| 文件页数： | 9/26页 |
| 文件大小： | 261K |
| 代理商： | LM86BIMQX |
Functional Description (Continued)
This register becomes Read Only when the Ready/Lock/Start/Override register Lock bit is set. Any further attempts to write to this
register shall have no effect. After power up the default value is used whenever the Ready/Lock/Start/Override register Start bit
is cleared even though modifications to this register are possible.
Bits [7:5] Zone/Mode
Bits [7:5] of the Fan Configuration registers associate each fan with a temperature sensor. When in Auto Fan Mode the fan will
be assigned to a zone, and its PWM duty cycle will be adjusted according to the temperature of that zone. If ‘Hottest’ option is
selected (101 or 110), the fan will be controlled by the hottest of zones 2 and 3, or of zones 1, 2, and 3. When in manual control
mode, the Current PWM duty registers (30h-32h) become Read/Write. It is then possible to control the PWM outputs with
software by writing to these registers. When the fan is disabled (100) the corresponding PWM output should be driven low (or
high, if inverted).
Zone 1: External Diode 1 (processor)
Zone 2: Internal Sensor
Zone 3: External Diode 2
TABLE 4. Fan Zone Setting
ZON[2:0]
Fan Configuration
000
Fan on zone 1 auto
001
Fan on zone 2 auto
010
Fan on zone 3 auto
011
Fan always on full
100
Fan disabled
101
Fan controlled by hottest of zones 2, 3
110
Fan controlled by hottest of zones 1, 2, 3
111
Fan manually controlled (Test Mode)
Bit [4] PWM Invert
Bit [4] inverts the PWM output. If set to 0, 100% duty cycle will yield an output that is always high. If set to 1, 100% duty cycle
will yield an output that is always low.
Bit [3] Reserved
Bits [2:0] Spin Up
Bits [2:0] specify the ‘spin up’ time for the fan. When a fan is being started from a stationary state, the PWM output is held at 100%
duty cycle for the time specified in the table below before scaling to a lower speed.
TABLE 5. Fan Spin-Up Register
SPIN[2:0]
Spin Up Time
000
0 sec
001
100 ms
010
250 ms
011
400 ms
100
700 ms
101
1000 ms
110
2000 ms
111
4000 ms
4.15 Registers 5F-61h: Auto Fan Speed Range, PWM Frequency
Register
Address
Read/
Write
Register
Name
Bit 7
(MSB)
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(LSB)
Default
Value
Lock?
5Fh
R/W
Zone1 Range/Fan1
Frequency
RAN3
RAN2
RAN1
RAN0
RES
FRQ2
FRQ1
FRQ0
C4h
U
60h
R/W
Zone2 Range/Fan2
Frequency
RAN3
RAN2
RAN1
RAN0
RES
FRQ2
FRQ1
FRQ0
C4h
U
61h
R/W
Zone3 Range/Fan3
Frequency
RAN3
RAN2
RAN1
RAN0
RES
FRQ2
FRQ1
FRQ0
C4h
U
LM85
www.national.com
17
相关PDF资料 |
PDF描述 |
|---|---|
| LM85BIMQ/NOPB | SPECIALTY ANALOG CIRCUIT, PDSO24 |
| LM9140BYZ-5.0X | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 5 V, PBCY3 |
| LM9140BYZ-4.1X | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 4.096 V, PBCY3 |
| LM9140BYZ-5.0 | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 5 V, PBCY3 |
| LM9140BYZ-4.1 | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 4.096 V, PBCY3 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM86CIM | 功能描述:板上安装温度传感器 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 |
| LM86CIM/NOPB | 功能描述:板上安装温度传感器 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 |
| LM86CIMM | 功能描述:板上安装温度传感器 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 |
| LM86CIMM/NOPB | 功能描述:板上安装温度传感器 +/-0.75DEG C ACC DIODE DIGI TEMP SENS 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 |
| LM86CIMMX | 功能描述:板上安装温度传感器 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 |
发布紧急采购，3分钟左右您将得到回复。