TB67S102AFG/FTG/FNG
TOSHIBA BiCD Integrated Circuit Silicon Monolithic
TB67S102AFG, TB67S102AFTG, TB67S102AFNG
CLOCK-in controlled Bipolar Stepping Motor Driver
The TB67S102A is a two-phase bipolar stepping motor driver
using a PWM chopper. The clock in decoder is built in.
Fabricated with the BiCD process, rating is 50 V/4.0 A .
FG
・BiCD
process integrated monolithic IC.
・Capable
of controlling 1 bipolar stepping motor.
・PWM
controlled constant-current drive.
・Allows
full, half, quarter step operation.
・Low
on-resistance (High + Low side=0.49Ω(typ)) MOSFET
output stage.
・High
efficiency motor current control mechanism (Advanced
Dynamic Mixed Decay)
・High
voltage and current (For specification, please refer to absolute
maximum ratings and operation ranges)
・Built-in
error detection circuits (Thermal shutdown (TSD), over-current
shutdown (ISD), and power-on reset (POR))
・Built-in
VCC regulator for internal circuit use.
・Chopping
frequency of a motor can be customized by external resistance
and condenser.
・Multi
package lineup
TB67S102AFG: HSOP28-P-0450-0.80
TB67S102AFTG: P-WQFN48-0707-0.50-003
TB67S102AFNG: HTSSOP48-P-300-0.50
Note) Please be careful about
thermal conditions during use.
Features
HSOP28-P-0450-0.80
Weight 0.79g (Typ.)
FTG
P-WQFN48-0707-0.50-003
Weight 0.10g(Typ.)
FNG
HTSSOP48-P-300-0.50
Weight 0.21g (Typ.)
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2013-11-05
TB67S102AFG/FTG/FNG
Pin assignment (TB67S102A)
(Top View)
CW/CCW
MO
DMODE1
DMODE2
CLK
ENABLE
RESET
FIN(GND)
1
2
3
4
5
6
7
FG
8
9
10
11
12
13
14
21
20
19
18
17
16
15
28
27
26
25
24
23
22
OSCM
VREFA
VREFB
NC
NC
VCC
VM
FIN(GND)
RSA
NC
OUTA+
NC
GND
OUTA-
GND
RSB
NC
OUTB+
NC
GND
OUTB-
GND
Please mount the FIN of the HSOP package to the GND area of the PCB.
(Top View)
OUTB+
OUTB+
OUTA+
VCC
RSB
RSB
VM
NC
NC
NC
NC
36 35 34 33 32 31 30 29 28 27 26 25
NC
NC
NC
GND
VREFB
VREFA
OSCM
CW/CCW
MO
DMODE1
DMODE2
NC
37
38
39
40
41
42
43
44
45
46
47
48
1
NC
2
CLK
3
ENABLE
4
RESET
5
GND
6
NC
7
RSA
8
RSA
9 10 11 12
OUTA+
NC
NC
FTG
24 NC
23 NC
22 GND
21 OUTB-
20 OUTB-
19 GND
18 GND
17 OUTA-
16 OUTA-
15 GND
14 NC
13 NC
Please mount the four corner pins of the QFN package and the exposed pad to the GND area of the PCB.
NC
NC
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2013-11-05
TB67S102AFG/FTG/FNG
Application Notes
All the grounding wires of the TB67S102A must run on the solder mask on the PCB and be externally terminated
at only one point. Also, a grounding method should be considered for efficient heat dissipation.
Careful attention should be paid to the layout of the output, VDD(VM) and GND traces, to avoid short circuits
across output pins or to the power supply or ground. If such a short circuit occurs, the device may be permanently
damaged.
Also, the utmost care should be taken for pattern designing and implementation of the device since it has power
supply pins (VM, RS, OUT, GND) through which a particularly large current may run. If these pins are wired
incorrectly, an operation error may occur or the device may be destroyed.
The logic input pins must also be wired correctly. Otherwise, the device may be damaged owing to a current
running through the IC that is larger than the specified current.
5
2013-11-05
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