Datasheet

TMC2130 DATASHEET (Rev. 1.09 / 2017-MAY-15) 17
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3.6 5V Only Supply
VCC_IO
TMC2130
SPI interface
CSN
SCK
SDO
SDI
Step & Dir input
with microPlyer
STEP DIR
DIAG / INT out
5V Voltage
regulator
charge pump
22n
63V
100n
16V
DIAG0
CLK_IN
DIAG1
+V
IO
DRV_ENN
GNDP
GNDA
TST_MODE
DIE PAD
opt. ext. clock
12-16MHz
3.3V or 5V
I/O voltage
100n
Sequencer
Full Bridge A
Full Bridge B
+5V
VS
stepper
motor
N
S
OA1
OA2
OB1
OB2
Driver
100n
BRB
100µF
CPI CPO
BRA
R
SA
Use low inductivity SMD
type, e.g. 1206, 0.5W
R
SB
100n
VCP
DAC Reference
AIN_IREF
IREF
Use low inductivity SMD
type, e.g. 1206, 0.5W
dcStep Controller
Interface
A B N
DC_IN
DC_EN
DCO
SPI_MODE
leave open opt. driver enable
+5V
5VOUT
VSA
4.7µ
VCC
470n
opt. dcStep control
Figure 3.7 5V only operation
While the standard application circuit is limited to roughly 5.5 V lower supply voltage, a 5 V only
application lets the IC run from a normal 5 V +/-5% supply. In this application, linear regulator drop
must be minimized. Therefore, the major 5 V load is removed by supplying VCC directly from the
external supply. In order to keep supply ripple away from the analog voltage reference, 5VOUT should
have an own filtering capacity and the 5VOUT pin does not become bridged to the 5V supply.