MAX6639FATE+T Maxim Integrated Products, MAX6639FATE+T Datasheet - Page 3
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MAX6639FATE+T
Manufacturer Part Number
MAX6639FATE+T
Description
IC TEMP SENSOR PWM CTLR 16TQFN
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX6639FAEE.pdf
(22 pages)
Specifications of MAX6639FATE+T
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-TQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
ELECTRICAL CHARACTERISTICS (continued)
(V
Note 1: All parameters tested at a single temperature. Specifications are guaranteed by design.
Note 2: Timing specifications guaranteed by design.
Note 3: The serial interface resets when SCL is low for more than t
Note 4: A transition must internally provide at least a hold time to bridge the undefined region (300ns max) of SCL's falling edge.
DIGITAL INPUTS AND OUTPUTS
Output Low Voltage (Sink
Current) (OT, ALERT, FANFAIL,
THERM, SDA, PWM1, and PWM2)
Output High Leakage Current
(OT, ALERT, FANFAIL, THERM,
SDA, PWM1, and PWM2)
Logic-Low Input Voltage (SDA,
SCL, THERM, TACH1, TACH2)
Logic-High Input Voltage (SDA,
SCL, THERM, TACH1, TACH2)
Input Leakage Current (SDA,
SCL, THERM, TACH1, TACH2)
Input Capacitance
SMBus TIMING (Note 2)
Serial Clock Frequency
Clock Low Period
Clock High Period
Bus Free Time Between STOP
and START Conditions
SMBus START Condition Setup
Time
START Condition Hold Time
STOP Condition Setup Time
Data Setup Time
Data Hold Time
SMBus Fall Time
SMBus Rise Time
SMBus Timeout
CC
= +3.0V to +3.6V, T
PARAMETER
2-Channel Temperature Monitor with Dual,
_______________________________________________________________________________________
A
Automatic, PWM Fan-Speed Controller
= 0°C to +125°C, unless otherwise noted. Typical values are at V
SYMBOL
t
t
t
t
t
TIMEOUT
t
HD:STO
HD:DAT
SU:STO
SU:DAT
SU:STA
t
t
t
f
HIGH
V
LOW
I
C
V
BUF
V
SCL
OH
t
t
OL
IH
F
R
IL
IN
ALERT, FANFAIL, THERM, OT, SDA
I
PWM1, PWM2, I
V
V
(Note 3)
10% to 10%
90% to 90%
90% of SMBCLK to 90% of SMBDATA
10% of SDA to 10% of SCL
90% of SCL to 10% of SDA
10% of SDA to 10% of SCL
10% of SCL to 10% of SDA (Note 4)
SINK
CC
IN
= V
= 3.3V
= 6mA
CC
or GND
CONDITIONS
SINK
TIMEOUT
= 4mA
.
CC
= +3.3V, T
MIN
250
300
2.1
4.7
4.7
4.7
10
58
4
4
4
A
TYP
= +85°C.) (Note 1)
74
5
MAX
1000
100
300
0.4
0.4
0.8
90
1
1
UNITS
kHz
ms
µA
µA
pF
µs
µs
µs
µs
µs
µs
ns
ns
ns
ns
V
V
V
3