Datasheet

MAX6693
7-Channel Precision Temperature Monitor
with Beta Compensation
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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.
V
CC
, SMBCLK, SMBDATA, ALERT, OVERT,
STBY to GND ....................................................-0.3V to +6.0V
DXP_ to GND..............................................-0.3V to (V
CC
+ 0.3V)
DXN_ to GND ........................................................-0.3V to +0.8V
SMBDATA, ALERT, OVERT Current....................-1mA to +50mA
DXN_ Current......................................................................±1mA
Continuous Power Dissipation (T
A
= +70°C)
20-Pin TSSOP
(derate 13.6mW/°C above +70°C) .............................1084mW
Junction-to-Case Thermal Resistance (θ
JC
) (Note 1)
20-Pin TSSOP...............................................................20°C/W
Junction-to-Ambient Thermal Resistance (θ
JA
) (Note 1)
20-Pin TSSOP............................................................73.8°C/W
ESD Protection (all pins, Human Body Model) ....................±2kV
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
ELECTRICAL CHARACTERISTICS
(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 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage V
CC
3.0 3.6 V
Software Standby Supply Current I
SS
SMBus static 3 10 µA
Operating Current I
CC
During conversion (Note 3) 500 2000 µA
Channel 1 only 11
Temperature Resolution
Other diode channels 8
Bits
T
A
= T
RJ
= +60°C to +100°C -1.5 +1.5
3 σ Temperature Accuracy
(Remote Channel 1)
V
CC
= 3.3V,
ß = 0.5
T
A
= T
RJ
= 0°C to +125°C -2.375 +2.375
°C
T
A
= T
RJ
= +60°C to +100°C -2 +2
3 σ Temperature Accuracy
(Remote Channels 2–6)
V
CC
= 3.3V
T
A
= T
RJ
= 0°C to +125°C -2.5 +2.5
°C
T
A
= +60°C to +100°C -2 +2
3 σ Temperature Accuracy
(Local)
V
CC
= 3.3V
T
A
= 0°C to +125°C -2.5 +2.5
°C
T
A
= T
RJ
= +60°C to +100°C -3 +3
6 σ Temperature Accuracy
(Remote Channel 1)
V
CC
= 3.3V,
ß = 0.5
T
A
= T
RJ
= 0°C to +125°C -4 +4
°C
T
A
= T
RJ
= +60°C to +100°C -3 +3
6 σ Temperature Accuracy
(Remote Channels 2–6)
V
CC
= 3.3V
T
A
= T
RJ
= 0°C to +125°C -3.5 +3.5
°C
T
A
= +60°C to +100°C -2.5 +2.5
6 σ Temperature Accuracy
(Local)
V
CC
= 3.3V
T
A
= 0°C to +125°C -3 +3
°C
Supply Sensitivity of Temperature
Accuracy
±0.2
o
C/V
Remote Channel 1 Conversion
Time
t
CONV1
190 250 312 ms
Remote Channels 2–6
Conversion Time
t
CONV_
95 125 156 ms
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.