参数资料
型号: ADT7476ARQZ-R7
厂商: ON Semiconductor
文件页数: 55/65页
文件大小: 0K
描述: IC REMOTE THERMAL CTLR 24-QSOP
产品变化通告: MFG CHG Notification ADI to ON Semi
QSOP 24ld Pkg (MSL) Change 17/Jun/2010
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
精确度: ±2.5%
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:
输出风扇:
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: 24-SSOP(0.154",3.90mm 宽)
供应商设备封装: 24-QSOP
包装: 带卷 (TR)
ADT7476
Table 66. T RANGE /PWM FREQUENCY REGISTERS (Note 1)
Register Address
0x5F
0x60
0x61
R/W
R/W
R/W
R/W
Description
Remote 1 T RANGE /PWM1 Frequency
Local T RANGE /PWM2 Frequency
Remote 2 T RANGE /PWM3 Frequency
Power-On Default
0xC4
0xC4
0xC4
Bit No.
[2:0]
Name
FREQ
R/W
R/W
Description
These bits control the PWMx frequency (only apply when PWM channel is in low frequency
mode).
000 = 11.0 Hz
001 = 14.7 Hz
010 = 22.1 Hz
011 = 29.4 Hz
100 = 35.3 Hz (Default)
101 = 44.1 Hz
110 = 58.8 Hz
111 = 88.2 Hz
[3]
[7:4]
HF/LR
RANGE
R/W
R/W
HF/LF = 1, High frequency PWM mode is enabled for PWMx.
HF/LF = 0, Low frequency PWM mode is enabled for PWMx.
These bits determine the PWM duty cycle vs. the temperature range for automatic fan
control.
0000 = 2 ° C
0001 = 2.5 ° C
0010 = 3.33 ° C
0011 = 4 ° C
0100 = 5 ° C
0101 = 6.67 ° C
0110 = 8 ° C
0111 = 10 ° C
1000 = 13.33 ° C
1001 = 16 ° C
1010 = 20 ° C
1011 = 26.67 ° C
1100 = 32 ° C (Default)
1101 = 40 ° C
1110 = 53.33 ° C
1111 = 80 ° C
1. These registers become read-only when the Configuration Register 1 Lock bit is set. Any further attempts to write to these registers have
no effect.
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