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Toshiba Electronic Components Datasheet

TC78B015FTG Datasheet

3-phase Driver

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TOSHIBA CMOS Integrated Circuit Silicon Monolithic
TC78B015FTG
TC78B015FTG
3-phase Driver for Brushless DC Motors
The TC78B015FTG is for three-phase full-wave brushless DC
motor with 150-degree trapezoid PWM chopper system. They
control motor rotational speed by changing the PWM duty, based
on the speed control input. Hall signal is supported to one sensor
for the TC78B015FTG.
Features
P-WQFN36-0505-0.50-001
Weight: 0.06 g (typ.)
Three-phase full wave drive
150-degree trapezoid PWM chopper system
Soft switching
Hall amplifier (hall element / hall IC):
1-sensor drive
Power supply: absolute maximum voltage: 25 V
Output current: absolute maximum current: 3 A
Selectable rotational speed command input signal:
Pulse duty signal input/analog voltage input/PWM signal input
Selectable PWM frequency
Adjustable minimum duty in PWM control
Adjustable speed ratio in PWM control
Selectable lead angle control function: Auto lead angle function/External lead angle control (32 steps correspond
to 0 to 58°)
Selectable rotation direction
Brake function terminal
Selectable lock detection function
Restart function
Rotation frequency signal (FG_OUT):
1 pulse/ electrical angle 360°, 2/3 pulse/ electrical angle 360°, 1/2 pulse/ electrical angle 360°,
1/3 pulse/ electrical angle 360°
Lock detection signal (LD_OUT)
Power supply voltage monitoring function
Overcurrent detection circuit (ISD)
Thermal shutdown circuit (TSD)
Under voltage lockout circuit (UVLO)
Current limit circuit
Adjustable start conditions
Selectable control function of forced commutation frequency (1-sensor drive).
© 2017 TOSHIBA Corporation
1
2017-02-01


Toshiba Electronic Components Datasheet

TC78B015FTG Datasheet

3-phase Driver

No Preview Available !

Pin assignment
<Top view>
TC78B015FTG
27 26 25 24 23 22 21 20 19
LD_OUT 28
TEST 29
SEL_LA 30
MIN_SP 31
SEL_SP 32
FPWM 33
SEL_LD 34
BRAKE 35
CW/CCW 36
E-PAD
18 TIP
17 TEST2
16 MVM
15 VM
14 VM
13 PGND3
12 LA
11 TSP/VSP
10 SEL_FG
1 2 34 5 67 8 9
Note 1: Design the pattern in consideration of the heat design because the back side (E-PAD) has the role of heat
radiation. The back side (E-PAD) should be connected to GND because it is connected to the back of the
chip electrically.
Note 2: There are four pairs of terminals named U, V, W, and VM. Connect two each of the terminals which has
the same pin symbol via external patterns. Regarding GND, connect PGND1, PGND2, PGND3, and
SGND via external patterns. PGND1 and PGND2 are short-circuited in the IC.
2
2017-02-01



Part Number TC78B015FTG
Description 3-phase Driver
Maker Toshiba
Total Page 3 Pages
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