Datasheet
MAX31782
System Management Microcontroller
2
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
DD
to V
SS
...........................................................-0.5V to +5.5V
ADxN to V
SS
......................................................... -0.3V to +0.3V
All Other Pins to V
SS
except
REG18 and REG25 .............................. -0.5V to (V
DD
+ 0.5V)*
SCL, SDA, MSDA, MSCL, P6.0–P6.4
Continuous Sink Current .................... 20mA each, 50mA total
P6.0–P6.4 Continuous Source Current ...20mA each, 50mA total
Operating Temperature Range .......................... -40NC to +85NC
Storage Temperature Range ............................ -55NC to +125NC
Lead Temperature (soldering, 10s) ................................+300NC
Soldering Temperature (reflow) ......................................+260NC
Continuous Power Dissipation (T
A
= +70NC)
TQFN (derate 35.7mW/NC above +70NC)...............2857.1mW
RECOMMENDED OPERATING CONDITIONS
(T
A
= -40NC to +85NC, unless otherwise noted.)
DC ELECTRICAL CHARACTERISTICS
(V
DD
= 2.7V to 5.5V, T
A
= -40NC to +85NC, unless otherwise noted. Typical values are at V
DD
= 3.3V, T
A
= +25NC, unless otherwise
noted.)
ABSOLUTE MAXIMUM RATINGS
*Subject to not exceeding +5.5V.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
V
DD
Operating Voltage Range V
DD
(Note 1) 2.7 5.5 V
Input Logic 1 V
IH
0.7 x
V
DD
V
DD
+
0.3
V
Input Logic 0 V
IL
0
0.3 x
V
DD
V
Input Logic-High: SCL, SDA,
MSDA, MSCL
V
I2C_IH
2.7V P V
DD
P 3.6V (Note 1)
2.1
V
DD
+
0.3
V
3.6V P V
DD
P 5.5V
0.7 x
V
DD
V
DD
+
0.3
Input Logic-Low: SCL, SDA,
MSDA, MSCL
V
I2C_IL
2.7V P V
DD
P 3.6V (Note 1)
0 0.8
V
3.6V P V
DD
P 5.5V
0
0.3 x
V
DD
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Current
I
CPU
Assuming 100% CPU duty cycle (Note 2) 1.73 2.34 mA
I
STOP
(Note 2) 830 1250 µA
I
PROGRAM
7 mA
Brownout Voltage V
BO
Monitors V
DD
(Note 1) 2.40 2.46 2.55 V
Brownout Hysteresis V
BOH
Monitors V
DD
(Note 1) 30 mV
Internal System Clock f
MOSC
4.0 MHz
System Clock Error (Note 3) f
ERR:MOSC
Initial tolerance, T
A
= +25NC, V
DD
= 5.5V
-1 +1
%
+25NC P T
A
P +85NC
-2 +1
-40NC P T
A
P +25NC
-5.5 +0.6