MAX6643LBBAEE+ Maxim Integrated Products, MAX6643LBBAEE+ Datasheet - Page 2

• 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

ABSOLUTE MAXIMUM RATINGS
V
PWM_OUT, OT, and FANFAIL to GND.....................-0.3V to +6V
FAN_IN1 and FAN_IN2 to GND...........................-0.3V to +13.2V
DXP_ to GND.........................................................-0.3V to +0.8V
FULLSPD, FULLSPD, TH_, TL_, TACHSET,
FANFAIL, OT Current ..........................................-1mA to +50mA
Automatic PWM Fan-Speed Controllers with
Overtemperature Output
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
2
Operating Supply Voltage Range
Remote Temperature Error
Local Temperature Error
Temperature Error from Supply
Sensitivity
Power-On-Reset (POR) Threshold
POR Threshold Hysteresis
Operating Current
Average Operating Current
Remote-Diode Sourcing Current
Conversion Time
Spin-Up Time
Startup Delay
Minimum Fan-Fail Tachometer
Frequency
PWM_OUT Frequency
DIGITAL OUTPUTS (OT, FANFAIL, PWM_OUT)
Output Low Voltage (OT)
Output Low Voltage
(FANFAIL, PWM_OUT)
Output-High Leakage Current
DD
DD
and OT_ to GND ..................................-0.3V to +(V
_______________________________________________________________________________________
to GND ..............................................................-0.3V to +6V
= +3.0V to +5.5V, T
PARAMETER
A
= -40 C to +125 C, unless otherwise noted. Typical values are at V
F
SYMBOL
PWM_OUT
V
V
V
I
OH
I
DD
OL
OL
S
V
+20 C
+100 C
V
V
During a conversion
Duty cycle = 50%, no load
High level
MAX664_ _B_ _ _ _
MAX664_ _B_ _ _ _
I
I
I
V
SINK
SINK
SINK
DD
CC
DD
OH
DD
= +3.3V,
= +3.3V
falling edge
= 3.3V
= 1mA
= 6mA
= 1mA
+ 0.3V)
T
RJ
CONDITIONS
T
T
T
T
Continuous Power Dissipation (T
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range ............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
A
A
A
A
= +20°C to +60°C
= 0°C to +125°C
= +10°C to +70°C
= 0°C to +125°C
16-Pin QSOP (derate 8.3mW/°C above +70°C).......... 667mW
10-Pin µMAX (derate 5.6mW/°C above +70°C) ...........444mW
DD
= +3.3V, T
+3.0
MIN
1.5
80
A
= +70°C)
±0.2
TYP
100
125
2.0
0.5
0.5
A
90
16
32
8
= +25°C.) (Note 1)
MAX
+5.5
±2.5
±3.5
120
2.5
0.5
0.4
0.5
0.4
±2
±3
1
1
UNITS
mV
mA
mA
ms
C/V
µA
Hz
Hz
µA
V
V
V
V
s
s
C
C