Datasheet

TMC2130 DATASHEET (Rev. 1.09 / 2017-MAY-15) 11
www.trinamic.com
2.2 Signal Descriptions
Pin
QFN36
TQFP48
Type
Function
CLK
1
2
DI
CLK input. Tie to GND using short wire for internal clock
or supply external clock.
CSN_CFG3
2
3
DI
(tpu)
SPI chip select input (negative active) (SPI_MODE=1) or
Configuration input (SPI_MODE=0) (tristate detection).
SCK_CFG2
3
4
DI
(tpu)
SPI serial clock input (SPI_MODE=1) or
Configuration input (SPI_MODE=0) (tristate detection).
SDI_CFG1
4
5
DI
(tpu)
SPI data input (SPI_MODE=1) or
Configuration input (SPI_MODE=0) (tristate detection).
SDO_CFG0
5
7
DIO
(tpu)
SPI data output (tristate) (SPI_MODE=1) or
Configuration input (SPI_MODE=0) (tristate detection).
STEP
6
8
DI
STEP input
DIR
7
9
DI
DIR input
VCC_IO
8
10
3.3V to 5V IO supply voltage for all digital pins.
DNC
9
11, 14, 16,
18, 20, 22,
28, 41, 43,
45, 47
-
Do not connect. Leave open to ensure highest distance
for high voltage pins in TQFP package!
Pins 9 and 11 may be connected to GND or left open.
SPI_MODE
10
12
DI
(pu)
Mode selection input with pullup resistor. When tied low,
the chip is in standalone mode and pins have their CFG
functions. When tied high, the SPI interface is available
for control. Integrated pull-up resistor.
N.C.
11
6, 31, 36
Unused pin, connect to GND for compatibility to future
versions.
GNDP
12, 35
13, 48
Power GND. Connect to GND plane near pin.
OB1
13
15
Motor coil B output 1
BRB
14
17
Sense resistor connection for coil B. Place sense resistor
to GND near pin. An additional 100nF capacitor to GND
(GND plane) is recommended for best performance.
OB2
15
19
Motor coil B output 2
VS
16, 31
21, 40
Motor supply voltage. Provide filtering capacity near pin
with short loop to nearest GNDP pin (respectively via GND
plane).
DCO
17
23
DIO
dcStep ready output
DCEN_CFG4
18
24
DI
(tpu)
dcStep enable input (SPI_MODE=1) - tie to GND for normal
operation (no dcStep) or
Configuration input (SPI_MODE=0) (tristate detection).
DCIN_CFG5
19
25
DI
(tpu)
dcStep gating input for axis synchronization (SPI_MODE=1)
or
Configuration input (SPI_MODE=0) (tristate detection).
DIAG0
20
26
DIO
Diagnostics output DIAG0. Use external pull-up resistor
with 47k or less in open drain mode.
DIAG1
21
27
DIO
Diagnostics output DIAG1. Use external pull-up resistor
with 47k or less in open drain mode.
DRV_ENN_
CFG6
22
29
DI
(tpu)
Enable input (SPI_MODE=1) or
configuration / Enable input (SPI_MODE=0) (tristate
detection).
The power stage becomes switched off (all motor outputs
floating) when this pin becomes driven to a high level.
AIN_IREF
23
30
AI
Analog reference voltage for current scaling (optional
mode) or reference current for use of internal sense
resistors