Data Sheet
TB67S249FTG 
2017-08-18 
3 
Pin description 
Pin No 
Pin name 
Pin function 
1 
AGC0 
Active Gain Control setup pin No.0 
2 
AGC1 
Active Gain Control setup pin No.1 
3 
CLIM0 
AGC current limiter setup pin No.0 
4 
CLIM1 
AGC current limiter setup pin No.1 
5 
FLIM 
AGC frequency limiter setup pin 
6 
BOOST 
AGC current boost setup pin 
7 
LTH 
AGC threshold setup pin 
8 
GND 
Ground pin 
9 
NC 
Non connection 
10 
VMA 
Motor power supply input pin 
11 
VMA 
Motor power supply input pin 
12 
NC 
Non connection 
13 
OUTA+ 
Ach motor output (+) pin 
14 
OUTA+ 
Ach motor output (+) pin 
15 
RSAGND 
Ach motor power ground pin 
16 
RSAGND 
Ach motor power ground pin 
17 
OUTA- 
Ach motor output (-) pin 
18 
OUTA- 
Ach motor output (-) pin 
19 
OUTB- 
Bch motor output (-) pin 
20 
OUTB- 
Bch motor output (-) pin 
21 
RSBGND 
Bch motor power ground pin 
22 
RSBGND 
Bch motor power ground pin 
23 
OUTB+ 
Bch motor output (+) pin 
24 
OUTB+ 
Bch motor output (+) pin 
25 
NC 
Non connection 
26 
VMB 
Motor power supply input pin 
27 
VMB 
Motor power supply input pin 
28 
NC 
Non connection 
29 
GND 
Ground pin 
30 
GND 
Ground pin 
31 
VREFB 
Bch current threshold reference pin 
32 
VREFA 
Ach current threshold reference pin 
33 
VCC 
Internal regulator voltage monitor pin 
34 
VCC 
Internal regulator voltage monitor pin 
35 
OSCM 
Internal oscillator frequency monitor and setting pin 
36 
NC 
Non connection 
37 
NC 
Non connection 
38 
NC 
Non connection 
39 
DMODE0 
Step resolution setting pin No.0 
40 
DMODE1 
Step resolution setting pin No.1 
41 
DMODE2 
Step resolution setting pin No.2 
42 
CW/CCW 
Current direction setup pin 
43 
CLK 
Step clock input pin 
44 
ENABLE 
Motor output ON/OFF pin 
45 
RESET 
Electrical angle initialize pin 
46 
MO 
Electrical angle monitor pin 
47 
LO1 
Error flag output pin No.1 
48 
LO2 
Error flag output pin No.2 
Note: Please leave the NC pins open and do not connect any PCB pattern. 
Note: For pins with the same pin name; connect the pins together at the nearest point of the driver. 










