MAX6639ATE+T Maxim Integrated Products, MAX6639ATE+T Datasheet - Page 3

• Manufacturer Part Number: MAX6639ATE+T
• Description: IC TEMP MONITOR 2CH 16-TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX6639ATE+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