MAX6639AEE+ Maxim Integrated Products, MAX6639AEE+ Datasheet - Page 11

• Manufacturer Part Number: MAX6639AEE+
• Description: IC TEMP MONITOR 2CH 16-QSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX6639AEE+

• Function: Fan Control, Temp Monitor
• Topology: ADC, PWM Generator, Tach Counter
• Sensor Type: External & Internal
• Sensing Temperature: 0°C ~ 150°C, External Sensor
• Output Type: I²C™/SMBus™
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Full Temp Accuracy: +/- 1 C
• Digital Output - Bus Interface: 2-Wire
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 3 V
• Description/function: Temperature Monitor/Fan-Speed Controller
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Supply Current: 0.5 mA
• Ic Output Type: Digital
• Sensing Accuracy Range: ± 1°C
• Supply Voltage Range: 3V To 3.6V
• Resolution (bits): 11bit
• Sensor Case Style: QSOP
• No. Of Pins: 16
• Accuracy %: 1°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 4. Register Map
READ/
WRITE
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
R
R
REGISTER
ADDRESS
0Ch
0Dh
NO.
0Ah
0Bh
00h
01h
02h
03h
04h
05h
06h
08h
09h
10h
11h
2-Channel Temperature Monitor with Dual,
______________________________________________________________________________________
STATE
POR
0000
0000
0000
0000
0000
0000
0000
0011
0011
0000
0000
0000
0000
0000
0101
0101
0101
0101
0110
1110
0110
1110
0101
0101
0101
0101
1000
0010
0000
0000
Automatic, PWM Fan-Speed Controller
Channel 1 OT
Channel 2 OT
Configuration
configuration
configuration
Temperature
Temperature
Output mask
temperature
temperature
THERM limit
THERM limit
FUNCTION
ALERT limit
ALERT limit
Status byte
Channel 1
Channel 2
Channel 1
Channel 2
Channel 1
Channel 2
channel 1
channel 2
extended
extended
Global
Fan 1
Fan 1
limit
limit
2a
1
RPM step-
Channel 1
Channel 1
(+128°C)
(+128°C)
0 = run,
1= stby
ALERT
ALERT
(0.5°C)
(0.5°C)
size A
(MSB)
mode
PWM
MSB
MSB
MSB
MSB
MSB
MSB
MSB
MSB
MSB
MSB
Run
D7
RPM step-
Channel 2
Channel 2
1 = reset
change
ALERT
ALERT
Rate of
(MSB)
size A
POR:
D6
—
—
—
—
—
—
—
—
—
—
RPM step-
Channel 1
Channel 1
(0.125°C)
(0.125°C)
enabled,
disabled
timeout:
change
SMBus
Rate of
size A
LSB
LSB
0 =
1 =
OT
OT
D5
—
—
—
—
—
—
—
—
Channel 2
Channel 2
0 = r em ote
RPM step-
Reserved Reserved Reserved Reserved
Reserved Reserved Reserved Reserved
channel 2
1 = l ocal ,
change
Rate of
sour ce:
size A
Tem p
(LSB)
(LSB)
D4
OT
OT
—
—
—
—
—
—
—
—
2
Channel 1
Channel 1
frequency
channel 1
step-size
A (MSB)
THERM
THERM
control
output
range
Fan 1
Temp
PWM
D3
—
—
—
—
—
—
—
—
Channel 2
Channel 2
channel 2
Reserved Reserved Reser ved
step-size
A (LSB)
THERM
THERM
control
Temp
Fan 1
D2
—
—
—
—
—
—
—
—
Fan 1 fault
Fan 1 fault
Polarity
select
range
PWM
RPM
D1
—
—
—
—
—
—
—
—
M i ni m um
1= val ue
0 = 0%,
sp eed :
D i od e
D i od e
r ang e
Fan 2
Fan 2
sel ect
( 1° C )
( 1° C )
( 1° C )
( 1° C )
( 1° C )
( 1° C )
( 1° C )
( 1° C )
RP M
LS B
LS B
faul t
faul t
faul t
faul t
LS B
LS B
LS B
LS B
LS B
LS B
fan
D 0
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