Datasheet
MAX31782
System Management Microcontroller
7
Pin Configuration
Pin Description
TQFN
(6mm × 6mm × 0.75mm)
MAX31782
TOP VIEW
35
36
34
33
12
11
13
V
SS
AD3N
AD3P
AD0P
AD0N
14
AD4N
TACH.1
TACH.2
PWM.2
PWM.0
REG25
TACH.0
TACH.3
REG18
12
P6.3/TDO
4567
27282930 26 24 23 22
P6.2/TMS/TBB
V
SS
PWM.4
TACH.5
PWM.5
MSCL
AD4P
PWM.1
3
25
37
P6.1/TDI
MSDA
38
39
40
P6.0/TCK
AD5N
AD5P
RST
AD2N
AD2P
P6.4/TBA
32
15
TACH.4
SCL
31
16
17
18
19
20
PWM.3
AD1P
V
DD
AD1N
V
SS
8910
21
SDA
EP
+
PIN NAME FUNCTION
1 AD4N Ground Reference for ADC.4 Voltage Measurement
2, 21, 36 V
SS
Supply Return Node
3 AD4P ADC Voltage-Sense Input, Measurement Relative to AD4N
4 AD3N
Ground Reference for ADC.3 Voltage Measurement. Connected to external reference pin when
enabled.
5 AD3P ADC Voltage-Sense Input, Measurement Relative to AD3N
6 AD0P ADC Voltage-Sense Input, Measurement Relative to AD0N
7 AD0N Ground Reference for ADC.0 Voltage Measurement
8 AD1P ADC Voltage-Sense Input, Measurement Relative to AD1N
9 V
DD
Input Supply. +2.7V to +5.5V input range. Bypass V
DD
to V
SS
with a 0.1FF capacitor.
10 AD1N Ground Reference for ADC.1 Voltage Measurement
11 AD2P ADC Voltage-Sense Input, Measurement Relative to AD2N
12 AD2N Ground Reference for ADC.2 Voltage Measurement
13
RST
Active-Low Reset. A low-level voltage at this pin resets the IC.
14 MSDA Master I
2
C-Compatible Bidirectional Data Line. When disabled, this pin can be used as GPIO P2.7.
15 MSCL Master I
2
C-Compatible Clock. When disabled, this pin can be used as GPIO P2.6.
16 PWM.5 PWM Output No. 5. When disabled, this pin can be used as GPIO.
17 TACH.5 Tachometer Input No. 5. When disabled, this pin can be used as GPIO.
18 PWM.4 PWM Output No. 4. When disabled, this pin can be used as GPIO.
19 TACH.4 Tachometer Input No. 4. When disabled, this pin can be used as GPIO.