MAX6641AUB90+ Maxim Integrated Products, MAX6641AUB90+ Datasheet - Page 4

• Manufacturer Part Number: MAX6641AUB90+
• Description: IC TEMP MONITOR SMBUS 10UMAX
• Manufacturer: Maxim Integrated Products

Specifications of MAX6641AUB90+

• Function: Fan Control, Temp Monitor
• Topology: ADC, PWM Generator, Tach Counter
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 125°C, External Sensor
• Output Type: I²C™/SMBus™
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Full Temp Accuracy: +/- 4 C
• Digital Output - Bus Interface: Serial (2-Wire)
• Digital Output - Number Of Bits: 8 bit
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SMBus-Compatible Temperature Monitor with
Automatic PWM Fan-Speed Controller
4
(V
CC
-0.25
-0.50
-0.75
-1.00
-1.25
-1.50
_______________________________________________________________________________________
0
= 3.3V, T
0.1
vs. POWER-SUPPLY NOISE FREQUENCY
T
AT V
A
REMOTE TEMPERATURE ERROR
= +80 C, 250mV SQUARE WAVE APPLIED
CC
, NO BYPASS CAPACITOR
A
1
= +25 C, unless otherwise noted.)
-0.5
-1.0
1.5
1.0
0.5
-1
-2
-3
FREQUENCY (kHz)
2
1
0
0
vs. DIFFERENTIAL-MODE NOISE FREQUENCY
-50
0.1
T
SQUARE WAVE APPLIED
TO DXP - DXN
A
10
= +80 C, V
REMOTE TEMPERATURE ERROR
-25
PWM FREQUENCY ERROR
vs. DIE TEMPERATURE
1
0
TEMPERATURE ( C)
IN
100
FREQUENCY (kHz)
= 10mV
25
10
P-P
50
1000
75
100
100
Typical Operating Characteristics (continued)
-0.5
-1.0
-1.5
-2.0
1.0
0.5
0
0.1
1000
125
vs. POWER-SUPPLY NOISE FREQUENCY
T
AT V
A
= +25 C, 250mV SQUARE WAVE APPLIED
LOCAL TEMPERATURE ERROR
CC
, NO BYPASS CAPACITOR
1
FREQUENCY (kHz)
10
100
-0.5
-1.0
-1
-2
-3
-4
-5
2.0
1.5
1.0
0.5
3
2
1
0
0
0.1
3.0
1000
T
T
A
A
REMOTE TEMPERATURE ERROR
= +80 C
= +25 C
vs. DXP - DXN CAPACITANCE
DXP - DXN CAPACITANCE (nF)
PWM FREQUENCY ERROR
3.5
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
-0.5
-1.0
-1.5
1
1.0
0.5
0
4.0
0.1
vs. COMMON-MODE NOISE FREQUENCY
T
SQUARE WAVE APPLIED TO DXP
A
REMOTE TEMPERATURE ERROR
= +80 C, V
4.5
10
1
IN
FREQUENCY (kHz)
5.0
= 100mV
10
100
P-P
5.5
100
1000