参数资料
| 型号： | ADT7490ZEVB |
| 厂商： | ON Semiconductor |
| 文件页数： | 59/75页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR ADT7490 |
| 产品变化通告： | MFG CHG Notification ADI to ON Semi |
| 标准包装： | 1 |
| 系列： | dBCool® |
| 类型： | 温度传感器 |
| 适用于相关产品： | ADT7490 |
| 所含物品： | 评估板 |
| 其它名称： | EVAL-ADT7490EBZ EVAL-ADT7490EBZ-ND |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页当前第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页
ADT7490
Table 74. REGISTER 0x62 ? ENHANCED ACOUSTICS REGISTER 1 (POWER-ON DEFAULT = 0x00)
R/W
Bit No.
[2:0]
Mnemonic
ACOU
(Note 2)
(Note 1)
R/W
Description
Assuming that PWMx is associated with the Remote 1 temperature channel, these bits define
the maximum rate of change of the PWMx output for Remote 1 temperature-related changes.
Instead of the fan speed jumping instantaneously to its newly determined speed, it ramps
gracefully at the rate determined by these bits. This feature ultimately enhances the acoustics
of the fan.
When Bit 7 of Configuration Register 6 (0x10) is 0
Bit Code
000 = 1
001 = 2
010 = 3
011 = 4
100 = 8
101 = 12
110 = 24
111 = 48
Time for 0% to 100%
37.5 sec
18.8 sec
12.5 sec
7.5 sec
4.7 sec
3.1 sec
1.6 sec
0.8 sec
When Bit 7 of Configuration Register 6 (0x10) is 1
Bit Code
000 = 1
001 = 2
010 = 3
011 = 4
100 = 8
101 = 12
110 = 24
111 = 48
Time for 0% to 100%
52.2 sec
26.1 sec
17.4 sec
10.4 sec
6.5 sec
4.4 sec
2.2 sec
1.1 sec
[3]
[4]
[5]
[6]
[7]
EN1
SYNC
MIN1
MIN2
MIN3
R/W
R/W
R/W
R/W
R/W
When this bit is 1, smoothing is enabled on Remote 1 temperature channel.
SYNC = 1 synchronizes fan speed measurements on TACH2, TACH3, and TACH4 to PWM3.
This allows up to three fans to be driven from PWM3 output and their speeds to be measured.
SYNC = 0 synchronizes only TACH3 and TACH4 to PWM3 output.
When the ADT7490 is in automatic fan control mode, this bit defines whether PWM1 is off
(0% duty cycle) or at PWM1 minimum duty cycle when the controlling temperature is below
its T MIN ? hysteresis value.
0 = 0% duty cycle below T MIN – hysteresis.
1 = PWM1 minimum duty cycle below T MIN – hysteresis.
When the ADT7490 is in automatic fan speed control mode, this bit defines whether PWM2 is
off (0% duty cycle) or at PWM2 minimum duty cycle when the controlling temperature is
below its T MIN ? hysteresis value.
0 = 0% duty cycle below T MIN – hysteresis.
1 = PWM2 minimum duty cycle below T MIN – hysteresis.
When the ADT7490 is in automatic fan speed control mode, this bit defines whether PWM3 is
off (0% duty cycle) or at PWM3 minimum duty cycle when the controlling temperature is
below its T MIN – hysteresis value.
0 = 0% duty cycle below T MIN – hysteresis.
1 = PWM3 minimum duty cycle below T MIN – hysteresis.
1. This register becomes read-only when the Configuration Register 1 (0x40) Lock bit is set to 1. Any further attempts to write to this register
have no effect.
2. Setting the relevant bit of Configuration Register 6 (0x10, Bits [2:0]) further decreases these ramp rates by a factor of 4.
http://onsemi.com
59
相关PDF资料 |
PDF描述 |
|---|---|
| ADZS-21262-1-EZEXT | BOARD DAUGHTER FOR ADSP-21262 |
| ADZS-BF-EZEXT-1 | BOARD DAUGHTER ADSP-BF533/561KIT |
| ADZS-BFAV-EZEXT | BOARD DAUGHT ADSP-BF533,37,61KIT |
| ADZS-BFSHUSB-EZEXT | BOARD DAUGHTER EZ EXTENDER |
| ADZS-BRKOUT-EX3 | ADZS-BRKOUT-EX3 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADT75 | 制造商:AD 制造商全称:Analog Devices 功能描述:+-1∑C Accurate, 12-Bit Digital Temperature Sensor |
| ADT7516 | 制造商:AD 制造商全称:Analog Devices 功能描述:SPI/I2C Compatible, Temperature Sensor, Four Channel ADC and Quad Voltage Output DAC |
| ADT7516_06 | 制造商:AD 制造商全称:Analog Devices 功能描述:SPI-/I2C-Compatible, Temperature Sensor,4-Channel ADC and Quad Voltage Output |
| ADT7516ARQ | 功能描述:IC TEMP SNSR QUAD DAC 16-QSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 标准包装:2,500 系列:SilentSense™ 功能:温度监控系统（传感器） 传感器类型:内部和外部 感应温度:-55°C ~ 125°C，外部传感器 精确度:±2°C 本地（最大），±3°C 远程（最大） 拓扑:ADC（三角积分型），比较器，寄存器库 输出类型:I²C?/SMBus? 输出警报:是 输出风扇:是 电源电压:2.7 V ~ 5.5 V 工作温度:-55°C ~ 125°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-MSOP 包装:带卷 (TR) 其它名称:MIC284-2BMMTRMIC284-2BMMTR-ND |
| ADT7516ARQ-REEL | 制造商:Analog Devices 功能描述:Temp Sensor Digital Serial (4-Wire, SPI, I2C) 16-Pin QSOP T/R 制造商:Analog Devices 功能描述:TEMP SENSOR DGTL SERL (4-WIRE, SPI) 16QSOP - Tape and Reel |
发布紧急采购，3分钟左右您将得到回复。