TMC5031 DATASHEET (Rev. 1.11 / 2016-APR-28)
7
2 Pin Assignments
2.1 Package Outline
INT
PP
1
2
36
35
34
33
32
31
30
29
28
27
26
25
CPI
CPO
3
GND
CSN
4
SCK
VCC
5
SDI
5VOUT
GNDA
VSA
TMC 5031-LA
QFN48 7mm x 7mm
0.5 pitch
6
GND
VCC_IO
SDO
GND
GND
CLK
7
8
DRV_ENN
REFL1
REFR1
REFL2
REFR2
9
10
11
12
GND
Figure 2.1 TMC5031 pin assignments.
2.2 Signal Descriptions
Pin
Number Type
Function
GND
6, 9, 10,
12, 24, 34
GND
Digital ground pin for IO pins and digital circuitry.
VCC_IO
VSA
7
30
3.3V or 5V I/O supply voltage pin for all digital pins.
Analog supply voltage for 5V regulator – typically supplied with
driver supply voltage. An additional 100nF capacitor to GND (GND
plane) is recommended for best performance.
GNDA
5VOUT
31
32
GND
Analog GND
Output of internal 5V regulator. Attach 2.2μF or larger ceramic
capacitor to GNDA near to pin for best performance. May be used to
supply VCC of chip.
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