TMC5031 DATASHEET (Rev. 1.07 / 2013-APR-30)
7
2 Pin Assignments
2.1 Package Outline
TST_MODE
GNDP
O1A1
O1A2
O1B1
O1B2
39
BR1A
BR1B
VS
VS
48
47
46
45
44
43
42
41
40
INT
PP
CSN
SCK
SDI
GND
VCC_IO
SDO
GND
GND
CLK
GND
38
37
VCP
-
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
36
35
34
33
32
31
30
29
28
27
26
25
CPI
CPO
GND
VCC
5VOUT
GNDA
VSA
DRV_ENN
REFL1
REFR1
REFL2
REFR2
TMC 5031-LA
QFN48 7mm x 7mm
0.5 pitch
-
O2A1
GNDP
O2B1
BR2B
O2B2
BR2A
-
Figure 2.1 TMC5031 pin assignments.
2.2 Signal Descriptions
Pin
GND
VCC_IO
Number Type
6, 9, 10,
GND
12, 24, 34
7
Function
Digital ground pin for IO pins and digital circuitry.
3.3V or 5V I/O supply voltage pin for all digital inputs and
outputs. May be supplied from 5VOUT pin in stand-alone
operation, where no I/O voltage supply is available.
Analog high voltage supply for linear regulator and internal
references – typically supplied with driver supply voltage. Provide
100nF blocking capacitor to GND. Avoid excessive voltage ripple.
Analog GND
Output of internal 5 V linear regulator, supply voltage for internal
analog circuitry and reference for coil current regulators. An
external capacitor to GNDA close to the pin is required. 4.7 µF
ceramic are recommended to keep ripple below a few mV,
especially when used to supply VCC. Optional RC filtering can be
used to decouple VCC ripple from this pin (3.3 Ω recommended).
Digital core power supply. Normally supplied by 5VOUT pin. In
case, a different 5 V supply is used, or RC-filtering is applied,
provide a 470 nF or larger blocking capacitor to GND.
VSA
30
GNDA
5VOUT
31
32
GND
VCC
33
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O2A2
GND
VS
VS
TRINAMIC [ TRINAMIC MOTION CONTROL GMBH & CO. KG. ]
