F75393
entry key writing, the address will keep default value 98h. For example, use 30k resistor for address 6A selection. User need to
write entry key to register CRFAh.
Ex: Original chip default address is 98h
Bus Access Byte Write (98, FA, 19)
Bus Access Byte Write (98, FA, 34)
Bus Access Byte Write (98, FA, 01)
After Entry Key writing, Chip address will change to 6Ah.
6.4 Temperature Monitoring
The F75393 monitors a local and a remote temperature sensor. Both can be measured from -40°C to 127.875°C.
The temperature format is as the following table:
Temperature ( High Byte )
Digital Output
1101 1000
1110 1100
1111 1111
Temperature ( Low Byte )
-0.875°C
Digital Output
001 0 0000
110 0 0000
111 0 0000
000 0 0000
011 0 0000
100 0 0000
110 0 0000
111 0 0000
-40°C
-20°C
-1°C
-0.325°C
-0.125°C
0°C
0000 0000
0011 0010
0100 1011
0110 0100
0111 1111
0°C
50°C
75°C
100°C
127°C
0.375°C
0.500°C
0.750°C
0.875°C
Remote-sensor transistor manufacturers
Manufacturer
Panasonic
Philips
Model Number
2SB0709 2N3906
PMBT3906
6.5 Alert#
Five events can trigger ALERT# to low:
(1). VT1(Local) temperature exceeds High Limit
(2). VT1(Local) temperature goes below Low Limit
(3). VT2(Remote) temperature exceeds High Limit
(4). VT2(Remote) temperature goes below Low Limit
(5). VT2(Remote) temperature is Open-circuit.
F75393
-5-
May, 2008
V0.16P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
