TMC260 and TMC261 DATASHEET (Rev. 2.05 / 2012-NOV-05)
6
2
2.1
Pin Assignments
Package Outline
TST_MODE
TST_ANA
VCC_IO
SG_TST
STEP
GND
GND
VHS
35
DIR
VS
36
44
43
42
41
40
39
38
37
-
OA1
VSA
OA2
OA1
BRA
OA2
34
-
1
2
3
4
5
6
7
8
9
10
11
33
32
31
30
-
OB1
VSB
OB2
OB1
BRB
OB2
TMC260-PA / TMC261-PA
QFP44
29
28
27
26
25
24
23
12
13
14
15
16
17
18
19
20
21
SRA
5VOUT
SDO
CSN
ENN
Figure 2.1 TMC260/261 pin assignments.
2.2
Pin
OA1
OA2
OB1
OB2
VSA
VSB
BRA
BRB
SRA
SRB
5VOUT
Signal Descriptions
Number
2, 3
7, 8
5, 6
10, 11
26, 27
31, 32
23, 24
28, 29
4
30
9
25
12
22
13
Type
O (VS)
O (VS)
O (VS)
O (VS)
Function
Bridge A1 output. Interconnect all of these pins using thick traces
capable to carry the motor current and distribute heat into the PCB.
Bridge A2 output. Interconnect all of these pins using thick traces
capable to carry the motor current and distribute heat into the PCB.
Bridge B1 output. Interconnect all of these pins using thick traces
capable to carry the motor current and distribute heat into the PCB.
Bridge B2 output. Interconnect all of these pins using thick traces
capable to carry the motor current and distribute heat into the PCB.
Bridge A/B positive power supply. Connect to VS and provide
sufficient filtering capacity for chopper current ripple.
Bridge A/B negative power supply via sense resistor in bridge foot
point.
Sense resistor inputs for chopper current regulation.
Output of the on-chip 5V linear regulator. This voltage is used to
supply the low-side MOSFETs and internal analog circuitry. An
external capacitor to GND close to the pin is required. Place the
capacitor near pins 13 and 17. A 470nF ceramic capacitor is
sufficient.
SPI serial data output.
AI
AI
SDO
14
DO VIO
www.trinamic.com
GND
SRB
SCK
SDI
-
CLK
22
TRINAMIC [ TRINAMIC MOTION CONTROL GMBH & CO. KG. ]
