MAX6643LBBAEE+ Maxim Integrated Products, MAX6643LBBAEE+ Datasheet - Page 3

• Manufacturer Part Number: MAX6643LBBAEE+
• Description: IC CNTRLR FAN SPEED 16-QSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX6643LBBAEE+

• 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: PWM
• 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: 16-QSOP
• Full Temp Accuracy: +/- 3.5 C, +/- 3 C
• Digital Output - Bus Interface: Serial (2-Wire)
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS (continued)
(V
Note 1: All parameters tested at T
(T
DIGITAL INPUTS (FULLSPD, FULLSPD, TACHSET)
Logic-Input High
Logic-Input Low
Input Leakage Current
DD
A
= +25°C, unless otherwise noted.)
= +3.0V to +5.5V, T
PARAMETER
Automatic PWM Fan-Speed Controllers with
400
360
320
280
240
200
35
34
33
32
31
30
_______________________________________________________________________________________
3.0
3.0
A
OPERATING SUPPLY CURRENT
= -40 C to +125 C, unless otherwise noted. Typical values are at V
3.5
3.5
vs. SUPPLY VOLTAGE
PWMOUT FREQUENCY
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
A
4.0
4.0
= +25°C. Specifications over temperature are guaranteed by design.
SYMBOL
V
V
4.5
IH
4.5
IL
5.0
5.0
V
V
V
V
DD
DD
DD
IN
= GND or V
= 5.5V
= 3.0V
= 3.0V
5.5
5.5
Overtemperature Output
CONDITIONS
DD
Typical Operating Characteristics
-0.2
-0.6
-1.0
32.0
31.8
31.6
31.4
31.2
31.0
1.0
0.6
0.2
20
-40
MAX664_L VERSIONS
-15
TRIP-THRESHOLD ERROR
vs. TRIP TEMPERATURE
vs. DIE TEMPERATURE
PWMOUT FREQUENCY
40
TRIP TEMPERATURE ( C)
10
TEMPERATURE ( C)
DD
35
60
= +3.3V, T
MIN
3.65
2.2
-1
60
80
85
TYP
A
= +25°C.) (Note 1)
100
100
MAX
0.8
+1
UNITS
µA
V
V
3