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ADT7475ARQZ-REEL

更新时间： 2024-02-17 18:31:20
品牌 Logo 应用领域
安森美 - ONSEMI 风扇监控控制器
页数 文件大小 规格书
58页 648K
描述
dBCOOL Remote Thermal Monitor and Fan Controller

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中文翻译

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ADT7475ARQZ-REEL 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Transferred零件包装代码：SSOP
包装说明：ROHS COMPLIANT, MO-137-AB, QSOP-16针数：16
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.29
模拟集成电路 - 其他类型：ANALOG CIRCUITJESD-30 代码：R-PDSO-G16
JESD-609代码：e3长度：4.9 mm
湿度敏感等级：1功能数量：1
端子数量：16最高工作温度：125 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：SSOP封装等效代码：SSOP16,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, SHRINK PITCH
峰值回流温度（摄氏度）：260电源：3.3 V
认证状态：Not Qualified座面最大高度：1.7526 mm
子类别：Motion Control Electronics最大供电电流 (Isup)：3 mA
最大供电电压 (Vsup)：3.6 V最小供电电压 (Vsup)：3 V
标称供电电压 (Vsup)：3.3 V表面贴装：YES
温度等级：AUTOMOTIVE端子面层：MATTE TIN
端子形式：GULL WING端子节距：0.635 mm
端子位置：DUAL处于峰值回流温度下的最长时间：40
宽度：3.9116 mm

ADT7475ARQZ-REEL 数据手册

 浏览型号ADT7475ARQZ-REEL的Datasheet PDF文件第49页浏览型号ADT7475ARQZ-REEL的Datasheet PDF文件第50页浏览型号ADT7475ARQZ-REEL的Datasheet PDF文件第51页浏览型号ADT7475ARQZ-REEL的Datasheet PDF文件第53页浏览型号ADT7475ARQZ-REEL的Datasheet PDF文件第54页浏览型号ADT7475ARQZ-REEL的Datasheet PDF文件第55页 
ADT7475  
Table 33. Register 0x64, Register 0x65, Register 0x66 — PWM Minimum Duty Cycle Registers  
(Power−On Default = 0x80; 50% Duty Cycle)  
Bit No.  
Mnemonic  
R/W  
Description  
[7:0]  
PWM Duty  
Cycle  
R/W  
These bits define the PWM  
0x00 = 0% duty cycle (fan off).  
0x40 = 25% duty cycle.  
0x80 = 50% duty cycle.  
0xFF = 100% duty cycle (fan full speed).  
duty cycle for PWMx.  
MIN  
Table 34. TMIN Registers (Note 1 and 2)  
Register Address  
R/W  
R/W  
R/W  
R/W  
Description  
Power−On Default  
0x5A (90°C)  
0x67  
0x68  
0x69  
Remote 1 temperature T  
MIN  
Local temperature T  
0x5A (90°C)  
MIN  
Remote 2 temperature T  
0x5A (90°C)  
MIN  
1. These are the T  
registers for each temperature channel. When the temperature measured exceeds T , the appropriate fan runs at  
MIN  
MIN  
minimum speed and increases with temperature according to T  
.
RANGE  
2. These registers become read−only when the Configuration Register 1 lock bit is set. Any subsequent attempts to write to these registers fail.  
Table 35. THERM Temperature Limit Registers (Note 1)  
Register Address  
Power−On Default  
R/W  
Description  
(Note 2)  
0x6A  
0x6B  
0x6C  
R/W  
R/W  
R/W  
Remote 1 THERM temperature limit.  
Local THERM temperature limit.  
Remote 2 THERM temperature limit.  
0x64 (100°C)  
0x64 (100°C)  
0x64 (100°C)  
1. If any temperature measured exceeds its THERM limit, all PWM outputs drive their fans at 100% duty cycle. This is a fail−safe mechanism  
incorporated to cool the system in the event of a critical overtemperature. It also ensures some level of cooling in the event that software  
or hardware locks up. If set to 0x80, this feature is disabled. The PWM output remains at 100% until the temperature drops below a THERM  
Limit − Hysteresis. If the THERM pin is programmed as an output, then exceeding these limits by 0.25°C can cause the THERM pin to assert  
low as an output.  
2. 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.  
Table 36. Temperature/TMIN Hysteresis Registers (Note 1)  
Register Address  
R/W  
Bit Name  
Description  
Power−On Default  
(Note 2)  
0x6D  
R/W  
Remote 1 and local temperature hysteresis.  
0x44  
HYSL  
[3:0]  
Local temperature hysteresis. 0°C to 15°C of hysteresis  
can be applied to the local temperature and AFC loops.  
HYSR1  
[7:4]  
Remote 1 temperature hysteresis. 0°C to 15°C of  
hysteresis can be applied to the Remote 1 temperature  
and AFC loops.  
0x6E  
R/W  
Remote 2 temperature hysteresis.  
0x40  
HYSR2  
[7:4]  
Local temperature hysteresis. 0°C to 15°C of hysteresis  
can be applied to the local temperature and AFC loops.  
1. Each 4−bit value controls the amount of temperature hysteresis applied to a particular temperature channel. Once the temperature for that  
channel falls below its T value, the fan remains running at PWM duty cycle until the temperature = T  
− hysteresis. Up to 15°C of  
MIN  
MIN  
MIN  
hysteresis can be assigned to any temperature channel. The hysteresis value chosen also applies to that temperature channel, if its THERM  
limit is exceeded. The PWM output being controlled goes to 100%, if the THERM limit is exceeded and remains at 100% until the temperature  
drops below THERM − hysteresis. For acoustic reasons, it is recommended that the hysteresis value not be programmed to less than 4°C.  
Setting the hysteresis value lower than 4°C causes the fan to switch on and off regularly when the temperature is close to T  
.
MIN  
2. 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.  
http://onsemi.com  
52  
 
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中文翻译

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ADT7475ARQZ-REEL 替代型号

型号 品牌 替代类型 描述 数据表
ADM1033ARQZ-REEL ONSEMI

类似代替

 		Thermal Monitor and Fan Speed (RPM) Controller
ADT7460ARQZ-REEL ONSEMI

类似代替

 		dBCOOL Remote Thermal Monitor and Fan Controller

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