Datasheet

TMC2130 DATASHEET (Rev. 1.09 / 2017-MAY-15) 12
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Pin
QFN36
TQFP48
Type
Function
GNDA
24
32
Analog GND. Tie to GND plane.
5VOUT
25
33
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.
VCC
26
34
5V supply input for digital circuitry within chip and
charge pump. Attach 470nF capacitor to GND (GND plane).
May be supplied by 5VOUT. A 2.2 or 3.3 Ohm resistor is
recommended for decoupling noise from 5VOUT. When
using an external supply, make sure, that VCC comes up
before or in parallel to 5VOUT or VCC_IO, whichever
comes up later!
CPO
27
35
Charge pump capacitor output.
CPI
28
37
Charge pump capacitor input. Tie to CPO using 22nF 50V
capacitor.
VCP
29
38
Charge pump voltage. Tie to VS using 100nF capacitor.
VSA
30
39
Analog supply voltage for 5V regulator. Normally tied to
VS. Provide a 100nF filtering capacitor.
OA2
32
42
Motor coil A output 2
BRA
33
44
Sense resistor connection for coil A. Place sense resistor
to GND near pin. An additional 100nF capacitor to GND
(GND plane) is recommended for best performance.
OA1
34
46
Motor coil A output 1
TST_MODE
36
1
DI
Test mode input. Tie to GND using short wire.
Exposed
die pad
-
-
Connect the exposed die pad to a GND plane. Provide as
many as possible vias for heat transfer to GND plane.
Serves as GND pin for digital circuitry.
*(pu) denominates a pin with pullup resistor; (tpu) denominates a pin with pullup resistor or toggle
detection. Toggle detection is active in standalone mode, only (SPI_MODE=0)