MAX6653AEE Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Fabricante
MAX6653AEE Datasheet PDF : 24 Pages
| |||
Temperature Monitors and
PWM Fan Controllers
Register Summary (continued)
Addr(H)
20
22
READ/WRITE POR STATE
DESCRIPTION
Fan characteristics register:
Bits [7:6]: N factor:
These bits contain the N factor for the fan-speed range:
00 = 1 (fail speed =2647RPM)
01 = 2 (fail speed =1324RPM) (default)
10 = 4 (fail speed = 662RPM)
11 = 8 (fail speed = 331RPM)
Bits [5:3]: PWM frequency:
These bits contain the nominal PWM output frequency:
000 = 11.7Hz
001 = 15.6Hz
010 = 23.4Hz
011 = 31.25Hz (default)
R/W
0101 1101
100 = 37.5Hz
101 = 46.9Hz
110 = 62.5Hz
111 = 93.5Hz
Bits [2:0]: Spin-up:
These bits contain the fan spin-up time:
000 = 200ms
001 = 400ms
010 = 600ms
011 = 800ms
100 = 1s
101 = 2s (default)
110 = 4s
111 = 8s
Fan-speed configuration register:
Bits [7:4]: Unused.
Bits [3:0]: PWM duty cycle: These bits contain the PWM duty cycle for the PWM duty
cycle fan-control mode. They also contain the minimum duty cycle that is
applied to the fan:
0000 = 0% output
MAX6653/
MAX6664
0001 = 7% output
0010 = 14% output
0011 = 20% output
R/W
01010101
0100 = 27% output
0101 = 33% output (default)
0110 = 40% output
MAX6663
01011111
0111 = 47% output
1000 = 53% output
1001 = 60% output
1010 = 67% output
1011 = 73% output
1100 = 80% output
1101 = 87% output
1110 = 93% output
1111 =100% output
______________________________________________________________________________________ 17
Share Link: 