Rainbow Electronics MAX6660 - Manual (Page 6)

MAX6660
Remote-Junction Temperature-Controlled
Fan-Speed Regulator with SMBus Interface
6 ________________________________________________________________________________________
N
FAN
FAN
TACH IN
VFAN
FAN-SPEED
REGULATOR
MUX DXP
DXN
T HIGH
T LOW
CONFIGURATION
FAN COUNT DIVISOR
(FC)
FAN SPEED LIMIT
(FS)
FAN GAIN (FG)
T FAN (FT)
FAN CONVERSION
RATE (FCR)
MODE (M)
FAN LIMIT (FL)
FAN-SPEED CONTROL
(FSC)
STATUS
T
HYST COMPARAT0R
T MAX
THERMAL OPEN/
CLOSED LOOP
FAN OPEN/
CLOSED LOOP
FAN
CONTROL
CIRCUIT
REMOTE DATA
TEMPERATURE
REGISTERS
SMBCLK
SMBDATA
ADD0
ADD1
ADC
CENTRAL
LOGIC
SMBus
INTERFACE
ADDRESS
DECODER
OVERT
ALERT
Figure 1. MAX6660 Block Diagram