Datasheet

TMC5130A DATASHEET (Rev. 1.11 / 2015-OCT-08) 17
www.trinamic.com
3.6 5V Only Supply
VCC_IO
TMC5130A
SPI interface
CSN
SCK
SDO/NAO
SDI/NAI
reference switch
processing
REFL/STEP REFR/DIR
DIAG / INT out
and
Single wire
interface
5V Voltage
regulator
charge pump
22n
63V
100n
16V
SWN/DIAG0
SW_SEL
CLK_IN
SWP/DIAG1
+V
IO
DRV_ENN
GNDP
GNDA
TST_MODE
DIE PAD
opt. ext. clock
12-16MHz
3.3V or 5V
I/O voltage
100n
Controller
Full Bridge A
Full Bridge B
+5V
VS
stepper
motor
N
S
OA1
OA2
OB1
OB2
Driver
100n
BRB
100µF
CPI CPO
+V
IO
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
Encoder
unit
A B N
ENCB
ENCA
ENCN
Optional incremental
encoder inputs
SD_MODE
SPI_MODE
leave open opt. driver enable
+5V
5VOUT
VSA
4.7µ
VCC
470n
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 +/-10% 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.