Data Sheet
TB67S249FTG 
2017-08-18 
19 
Absolute maximum ratings (Ta = 25°C) 
Characteristics 
Symbol  Rating  Unit  Remarks 
Motor power supply 
VM
50 
V 
— 
Motor output voltage 
VOUT
50 
V 
— 
Motor output current 
IOUT
4.5 
A 
(Note1) 
Internal Logic power supply 
VCC
6.0 
V 
— 
Logic input voltage 
VIN (H)
6.0 
V 
— 
VIN (L) 
-0.4 
V 
— 
MO output voltage 
VMO 
6.0 
V 
— 
LO output voltage 
VLO 
6.0 
V 
— 
MO Inflow current 
IMO
6.0 
mA 
— 
LO Inflow current 
ILO 
6.0 
mA 
— 
Power dissipation 
PD
1.3 
W 
(Note2) 
Operating temperature 
Topr
-20 to 85 
°C 
— 
Storage temperature 
Tstg
-55 to 150 
°C 
— 
Junction temperature 
Tj (max)
150 
°C 
— 
Note1: For normal usage, the maximum current value should be determined by heat calculation.   
The maximum output current may be further limited depending on ambient temperature and board conditions   
(heat conditions). 
Note2: Device alone (Ta =25°C) 
Ta: Ambient temperature 
Topr: Ambient temperature while the IC is active 
Tj: Junction temperature while the IC is active. Tj (max) is limited by the thermal shutdown (TSD) threshold. 
Please set the usage conditions so that the peak Tj is kept under 120°C for indication. 
Caution) Absolute maximum ratings 
The absolute maximum ratings of a semiconductor device are a set of ratings that must not be exceeded, even for a 
moment. Do not exceed any of these ratings. Exceeding the rating (s) may cause device breakdown, damage or 
deterioration, and may result in injury by explosion or combustion. The value of even one parameter of the absolute 
maximum ratings should not be exceeded under any circumstances. All voltage ratings, including supply voltages, must 
always be followed. Other notes and considerations described in the datasheet should also be referred to. 
Operation ranges
 (Ta=-20 to 85
°C
) 
Characteristics  Symbol 
Min  Typ.  Max  Unit  Remarks 
Motor power supply 
VM 
10 
24 
47 
V 
— 
Motor output current 
IOUT 
— 
2.25 
4.5 
A 
(Note1) 
MO output pin voltage 
VMO 
— 
3.3 
VCC 
V 
Pull-up voltage 
LO output pin voltage 
VLO 
— 
3.3 
VCC 
V 
Pull-up voltage 
Clock input frequency 
fCLK 
— 
-— 
1000 
kHz 
(Note2) 
Chopping frequency 
Fchop (range) 
40 
70 
150 
kHz 
— 
VREF input voltage 
VREF 
GND 
2.0 
3.6 
V 
— 
Note1: The actual maximum current may be limited due to operating circumstances (operating conditions of step resolution, 
continuous operation time, etc. and thermal conditions of ambient temperature, PCB layout, etc.)   
Note2: The actual maximum frequency may be limited due to operating circumstances (operating conditions of step 
resolution, continuous operation time, etc. and thermal conditions of ambient temperature, PCB layout, etc.)   










