ADT7473 Analog Devices, Inc., ADT7473 Datasheet - Page 67

• Manufacturer Part Number: ADT7473
• Description: Dbcool Remote Thermal Monitor And Fan Controller
• Manufacturer: Analog Devices, Inc.

Table 36. Register 0x5F, Register 0x60, and Register 0x61—TEMP T
Bit
[2:0]
[3]
[7:4]
Name
FREQ
HF/LF
RANGE
R/W
R/W
R/W
R/W
Description
These bits control the PWMx frequency.
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.
HF/
no
0x
0x60, HF/LF = 1 enables high fr
0x
Th
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.
5F, HF/LF =
61, HF/LF = 1 enables high frequency mode for Fan 3.
ese bits determine the PWM duty cycle vs. the temperature slope for automatic fan control.
effect.
LF =1, ena
bles high frequen
1 enables high fre
equency mode for Fan 2.
cy PWM
quency
Rev. A | Page 67 of 76
mode for Fan 1.
output for 4-wire fans. Once enabled, 3-wire fan-specific settings have
RANGE
/PWM Freq
uency Registers (Power-On Default = 0xCC)
ADT7473