TB67H301FTG
TOSHIBA Bi-CDMOS Integrated Circuit Silicon Monolithic
TB67H301FTG
Full-Bridge DC Motor Driver IC
The TB67H301FTG is a full-bridge DC motor driver with
DMOS output transistors.
The low ON-resistance DMOS process and PWM control
enables driving DC motors with high thermal efficiency.
Four operating modes are selectable via IN1 and IN2: clockwise
(CW), counterclockwise (CCW), Short Brake and Stop.
Features
•
•
•
•
•
•
•
•
•
Power supply voltage
Output current
Direct PWM control
PWM constasnt-current control
CW/CCW/Short Brake/Stop
Overcurrent shutdown circuit (ISD)
Thermal shutdown circuit (TSD)
Undervoltage lockout circuit (LVD)
Dead time for preventing shoot-through current
: 40 V (max)
: 3 A (max)
P-WQFN24-0404-0.50-004:
Weight: 0.036 g (typ.)
© 2014 TOSHIBA Corporation
1
2014-10-01
TB67H301FTG
Block Diagram
(application circuit example)
The application circuits shown in this document are provided for reference purposes only. Thorough evaluation is
required, especially at the mass production design stage.
Toshiba does not grant any license to any industrial property rights by providing these examples of application
circuits.
VCC
PSW
Regulator
LVD
LVD
VM
TSD
ISD detection
ISD detection
OUT1
IN1
Control
IN2
Predriver
Motor
OUT2
Dead Time
ISD detection
ISD
ISD detection
VCC
STBY
ALERT
Mask
Time
PSW
PWM Constant Current
VREF
Reference
OSC
OFF Time
ON Time
Level
ROSC
TOFF
TON
PSW
PISD NISD
IR
RS/GND
SGND
PGND
2
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TB67H301FTG
Pin Functions
TB67H301FTG
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Pin Name
IN1
IN2
STBY
NISD
PISD
ROSC
VCC
N.C.
VM
N.C.
TOFF
N.C.
OUT2
PGND
RS/GND
IR
N.C.
OUT1
N.C.
TON
ALERT
SGND
VREF
PSW
Control signal input pin 1
Control signal input pin 2
Standby input pin
Functional Description
Program pin for overcurrent detection control for Nch
Program pin for overcurrent detection control for Pch
Resistor control pin for reference frequency
Power supply voltage pin
No-connect
Power supply voltage pin for motor
No-connect
Program pin for OFF time of overcurrent detection
No-connect
Output pin 2
Connect pin for power ground
Detection resistor pin for PWM constant-current control/ Power ground pin
Detection pin for constant current
No-connect
Output pin 1
No-connect
Program pin for ON time of overcurrent detection
Error detection output pin
Small signal ground pin
Supply voltage pin for PWM constant-current control
Output pin for VCC
3
2014-10-01
TB67H301FTG
Pin Assignment
(top view)
Note: Design the pattern in consideration of the heat design because the back side has the role of heat radiation.
(The back side should be connected to GND because it is connected to the back of the chip electrically.)
・TB67H301FTG
RS/GND
PGND
14
OUT1
NC
NC
19
TON
20
ALERT
21
SGND
22
VREF
23
PSW
24
18
17
IR
16
15
OUT2
13
12
NC
11
TOFF
10
NC
9
8
7
VM
NC
VCC
1
2
3
4
5
6
ROSC
STBY
NISD
PISD
IN1
IN2
4
2014-10-01
TB67H301FTG
Absolute Maximum Ratings
(Ta = 25°C)
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 the device breakdown, damage or deterioration, and may result injury by
explosion or combustion.
Characteristics
Power supply voltage
Symbol
VM
VCC
VO1
VO2
IO1 peak
IO2 peak
Input voltage
Power dissipation
VIN
P
D1
Topr
Tstg
Rating
40
6
40
6
3
1
−0.3
to 6
3.37
Unit
V
V
V
V
A
mA
V
W
ALERT,PSW
IN1,IN2, STBY,VREF
TB67H301FTG
On the PCB (4 layer board
FR4 74mm×74mm×
1.6mm)
Appropriate pin
VM
VCC
OUT1,OUT2
ALERT,PSW
OUT1,OUT2
Output current
Use the IC not to exceed 3A
(Rating value) including
parasitic diode of output
transistor (DMOS).
Remarks
Output voltage
―
Operating temperature
Storage temperature
−40
to 85
−55
to 150
°C
°C
―
―
Operating Ranges
Characteristics
Symbol
VMopr
Power supply voltage
Vccopr1
Vccopr2
Input voltage of VREF
and IR
PWM frequency
VREFopr
fPWMopr
Min.
4.5
4.5
3.0
0
―
Typ.
24
5
5
―
100
Max.
38
5.5
5.5
0.5
―
Unit
V
V
V
V
kHz
Appropriate pin
VM
VCC
VCC
VREF,IR
IN1, IN2
Reference value
The switching characteristic of the output
transistor strains the frequency.
Reference value
The average output current shall be increased
or decreased depending on usage conditions
such as ambient temperature and IC mounting
method).
Use the average output current so that the
junction temperature of 150°C (Tj) and the
absolute maximum output current rating are
not exceeded.
In case of using constant current PWM control.
In case of not using constant current PWM
control.
Remarks
Output current
I
O
(Ave)
―
1
―
A
―
5
2014-10-01