Datasheet

MAX6694
5-Channel Precision Temperature Monitor
with Beta Compensation
4 _______________________________________________________________________________________
Note 2: All parameters are tested at T
A
= +85°C. Specifications over temperature are guaranteed by design.
Note 3: Beta = 0.5 for channel 1 remote transistor.
Note 4: Timing specifications are guaranteed by design.
Note 5: The serial interface resets when SMBCLK is low for more than t
TIMEOUT
.
Note 6: A transition must internally provide at least a hold time to bridge the undefined region (300ns max) of SMBCLK’s falling edge.
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +3.0V to +3.6V, V
STBY
= V
CC
, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at V
CC
= +3.3V and T
A
=
+25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
f
SMBCLK
= 100kHz 250
Data Setup Time t
SU:DAT
f
SMBCLK
= 400kHz 100
ns
f
SMBCLK
= 100kHz 1
Receive SMBCLK/SMBDATA Rise
Time
t
R
f
SMBCLK
= 400kHz 0.3
µs
Receive SMBCLK/SMBDATA Fall
Time
t
F
300 ns
Pulse Width of Spike Suppressed t
SP
050ns
SMBus Timeout t
TIMEOUT
SMBDATA low period for interface reset 25 37 45 ms