Reversible Motor Drivers for Brush Motors
1.0A or More Reversible
Motor Drivers (2 Motors)
BA6247FP-Y, BA6238A
No.11008EBT04
●Description
The reversible motor driver for output 1.0A or more for two motors drives a brush motor and incorporates one and a half
circuits of reversible motor driver. In addition, since the output section can control voltage applied to motors by output high
voltage setting pin, the torque at the time of driving motors can be varied.
●Features
1) Built-in one and a half circuits of a reversible motor driver
2) Minimal external components
3) Output voltage can be optionally set by reference voltage setting pin
4) Built-in thermal shutdown circuit
●Applications
Audio-visual equipment; PC peripherals; Car audios; Car navigation systems; OA equipments
●Absolute
maximum ratings (Ta=25℃, All voltages are with respect to ground)
Ratings
Parameter
Symbol
BA6247FP-Y
BA6238A
Supply voltage
Output current
Control input pins
Operating temperature
Storage temperature
Power dissipation
Junction temperature
*1
*2
*3
*4
Unit
V
A
V
℃
℃
W
℃
VCC1, VCC2
I
OMAX
V
IN
T
OPR
T
STG
Pd
T
jmax
20
1*
1
-0.2 ~ 6.0
-25 ~ 75
-55 ~ 150
1.45*
4
150
20
1.6*
1
-0.3 ~ 5.0
-25 ~ 75
-55 ~ 125
2.0*
2
/ 0.95*
3
125
Do not, exceed Pd or ASO (Pulse at 1/50 duty: 50ms).
HSIP10 package. Derated at 20mW/℃ above 25℃.
SIP10 package. Derated at 9.5mW/℃ above 25℃.
HSOP25 package. Mounted on a 70mm x 70mm x 1.6mm FR4 glass-epoxy board with less than 3% copper foil.
Derated at 11.6mW/℃ above 25℃.
●Operating
conditions (Ta=25℃)
Parameter
Supply voltage
Supply voltage
VREF voltage
Symbol
VCC1,
VCC2
VR
Ratings
BA6247FP-Y
8 ~ 18
8 ~ 18
0 ~ 18
BA6238A
8 ~ 18
8 ~ 18
0 ~ 18
Unit
V
V
V
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
1/11
2011.05 - Rev.B
BA6247FP-Y,BA6238A
Technical Note
●Electrical
characteristics (BA6247FP-Y, unless otherwise specified, Ta=25℃ and VCC1=VCC2=12V)
Limits
Parameter
Symbol
Unit
Conditions
Min.
Typ.
Max.
Supply current
Input threshold voltage H
Input threshold voltage L
Output voltage H
Output voltage L
Output leak current
Output offset voltage
VR bias current
I
CC
V
IH
V
IL
V
OH
V
OL
I
OL
V
OFS
I
8
-
3.5
-
10
-
-
-0.5
0.5
10
-
-
10.5
0.9
-
0
0.8
20
-
1.0
-
1.5
1
0.5
1.6
mA
V
V
V
V
mA
V
mA
I
O
=0.5A, VR=OPEN
I
O
=0.5A
IN1, IN2, IN3=L, VCC2 current
VR=6V, I
O
=0.5A, V
OH
-VR
VR=6V, I
O
=0.5A
IN1, IN2, IN3=L
●Electrical
characteristics (BA6238A, unless otherwise specified, Ta=25℃ and VCC1=VCC2=12V)
Limits
Parameter
Symbol
Unit
Conditions
Min.
Typ.
Max.
Supply current
Input threshold voltage H
Input threshold voltage L
Output voltage H
Output voltage L
Output leak current
Output offset voltage
VR bias current
I
CC
V
IH
V
IL
V
OH
V
OL
I
OL
V
OFS
I
8
-
4.0
-
10.0
-
-
-0.5
0.2
12
-
-
10.5
0.8
-
0
0.6
24
-
1.0
-
1.5
1
0.5
1.5
mA
V
V
V
V
mA
V
mA
I
O
=0.5A, VR=OPEN
I
O
=0.5A, VR=OPEN
IN1, IN2, IN3=L, R
L
=∞, VCC2 current
VR=6V, I
O
=0.5A, V
OH
-VR
VR=6V, I
O
=0.5A
IN1, IN2, IN3=L, R
L
=∞
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2/11
2011.05 - Rev.B
BA6247FP-Y,BA6238A
●Electrical
characteristic curves (Reference data)
16
14
Supply Current: Icc [mA]
12
10
8
6
4
8
10
12
14
16
Supply Voltage: Vcc [V]
18
-25
℃
25
℃
75
℃
Supply Current: Icc [mA]
18
16
14
12
10
8
6
8
10
12
14
16
Supply Voltage: Vcc [V]
18
75
℃
25
℃
-25
℃
Technical Note
Fig.1 Supply current
(BA6247FP-Y)
8.5
75
℃
25
℃
-20
℃
8.0
12
Fig.2
Supply current
(BA6238A)
75
℃
25
℃
-25
℃
Output High Voltage: VOH [V]
Output High Voltage: VOH [V]
11
10
7.5
9
7.0
0
0.2
0.4
0.6
0.8
Output Current: Iout [A]
1
8
0
0.4
0.8
1.2
Output Current: Iout [A]
1.6
Fig.3 Output high voltage
(BA6247FP-Y)
1.5
Fig.4
Output high voltage
(BA6238A)
1.6
Output Low Voltage: VOL [V]
Output Low Voltage: VOL [V]
1.2
1.2
0.9
0.8
0.6
-25
℃
25
℃
75
℃
0.3
0.4
-25
℃
25
℃
75
℃
0
0.4
0.8
1.2
Output Current: Iout [A]
1.6
0.0
0
0.2
0.4
0.6
0.8
Output Current: Iout [A]
1
0.0
Fig.5 Output low voltage
(BA6247FP-Y)
3
ii) Mounted on ROHM standard PCB
(70mm x 70mm x 1.6mm FR4 glass -epoxy board)
Fig.6
Output low voltage
(BA6238A)
3
i) Without heat sink
i) 2.0W
2
Pd [W]
1
i)0.85W
0
0
25
50
75
100
125
AMBIENT TEMPERATURE [°C]
150
0
25
50
75
100
125
AMBIENT TEMPERATURE [°C]
150
ii)1.45W
i) Package only
2
Pd [W]
1
0
Fig.7 Thermal derating curve
(BA6247FP-Y, HSOP25)
Fig.8
Thermal derating curve
(BA6238A, HSIP10)
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
3/11
2011.05 - Rev.B
BA6247FP-Y,BA6238A
●Block
diagram and pin configuration
BA6247FP-Y
VCC2
16
TSD
VCC1
9
C1
IN1
5
R2
IN2
6
CTRL
VR
14
R3
IN3
8
R1
Technical Note
FIN
GND
7
19 20
GND
OUT2
22
OUT1
M
C2
18
OUT3
M
C3
1
C4
C5
Fig.9
BA6247FP-Y
Table 1 BA6247FP-Y
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
FIN
Name
OUT3
NC
NC
NC
IN1
IN2
GND
IN3
VCC1
NC
NC
NC
NC
VR
NC
VCC2
NC
OUT1
GND
GND
NC
OUT2
NC
NC
NC
GND
Function
Driver output
NC
NC
NC
Control input
Control input
GND
Control input
Power supply (small signal)
NC
NC
NC
NC
Reference voltage setting pin
NC
Power supply (driver stage)
NC
Driver output
GND
GND
NC
Driver output
NC
NC
NC
GND
Fig.10 BA6247FP-Y (HSOP25)
OUT3
NC
NC
NC
IN1
IN2
GND
GND
IN3
VCC1
NC
NC
NC
NC
NC
NC
NC
OUT2
NC
GND
GND
GND
OUT1
NC
VCC2
NC
VR
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
4/11
2011.05 - Rev.B
BA6247FP-Y,BA6238A
●Block
diagram and pin configuration
BA6238A
VCC2
9
TSD
VCC1
7
C1
IN1
4
R2
IN2
5
CTRL
VR
8
R3
IN3
6
GND
1
2
OUT2
M
C2
OUT1
M
C3
10
OUT3
3
R1
Technical Note
C4
C5
Fig.11 BA6238A
Table 2 BA6238A
Pin
1
2
3
4
5
6
7
8
9
10
Name
GND
OUT2
OUT3
IN1
IN2
IN3
VCC1
VR
VCC2
OUT1
GND
Driver output
Driver output
Control input
Control input
Control input
Power supply (small signal)
GND
IN1
IN2
OUT2
OUT3
IN3
VR
Function
Reference voltage setting pin
Power supply (driver stage)
Driver output
Fig.12 BA6238A (HSIP10)
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
5/11
2011.05 - Rev.B
OUT1
VCC1
VCC2
京公网安备 11010802033920号
EEWORLD
