TMC5072 DATASHEET (Rev. 1.22 / 2017-MAY-16)
11
Pin
Number Type
Function
Unused pins – no internal electrical connection. Leave open or tie to
GND for compatibility with future devices.
-
13, 23, 38 N.C.
Table 2.3 Digital I/O pins (all related to VCC_IO supply)
Pin
Number Type
Function
Motor 2 coil A output 1
Sense resistor connection for motor 2 coil A. Place sense resistor to
GND near pin.
O2A1
BR2A
14
15
O (VS)
Motor 2 coil A output 2
O2A2
VS
16
17, 19
O (VS)
Motor supply voltage. Provide filtering capacity near pin with
shortest loop to nearest GNDP pin (respectively via GND plane).
Power GND. Connect to GND plane near pin.
Motor 2 coil B output 1
Sense resistor connection for motor 2 coil B. Place sense resistor to
GND near pin.
GNDP
O2B1
BR2B
18
20
21
GND
O (VS)
Motor 2 coil B output 2
Motor 1 coil B output 2
Sense resistor connection for motor 1 coil B. Place sense resistor to
GND near pin.
O2B2
O1B2
BR1B
22
39
40
O (VS)
O (VS)
Motor 1 coil B output 1
O1B1
VS
41
42, 44
O (VS)
Motor supply voltage. Provide filtering capacity near pin with
shortest loop to nearest GNDP pin (respectively via GND plane).
Power GND. Connect to GND plane near pin.
Motor 1 coil A output 2
Sense resistor connection for motor 1 coil A. Place sense resistor to
GND near pin.
GNDP
O1A2
BR1A
43
45
46
GND
O (VS)
Motor 1 coil A output 1
O1A1
47
O (VS)
Table 2.4 Power driver pins
www.trinamic.com