TB67S105FTG
Toshiba BiCD process integrated circuit silicon monolithic
TB67S105FTG
8bit Serial controlled bipolar stepping motor driver
The TB67S105FTG is a two phase bipolar stepping motor driver
using a PWM chopper, controlled by 8 bit serial.
Fabricated by the BiCD process, the TB67S105FTG is rated
at 50V/3.0A.
The internal voltage regulator allows to control the device
with a single VM power supply.
FTG
P-WQFN48-0707-0.50-003
Weight: 0.1 g (Typ.)
Features
・BiCD
process integrated monolithic IC.
・Capable
of controlling one bipolar stepping motor.
・PWM
controlled constant-current drive.
・Built-in
serial-parallel convert circuit (8bit shift register)
・3-line
(Data, Clock, Latch) serial output function for cascade connection
・Allows
full, half step operation
・4
bit (16 steps) adjustable torque function (TRQ1,TRQ2,TRQ3,TRQ4).
・Low
on-resistance (High + Low side=0.6Ω(typ.)) MOSFET output stage.
・High
voltage and current (for specification, please refer to the 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 use.
・Chopping
frequency of a motor can be customized by external resistance and condenser.
・Package
type: P-WQFN48-0707-0.50-003
Note) Please be careful about thermal conditions during use.
©2014 TOSHIBA CORPORATION
1
2014-10-20
TB67S105FTG
Application Notes
All the grounding wires of the TB67S105 must run on the solder mask on the PCB, and be externally connected at a
single point. Also, the grounding method should be considered for efficient heat dissipation.
Careful attention should be paid to the layout of the output, 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.
4
2014-10-20
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