High efficiency switching-type motor driver
BP5807
The BP5807 is an output-variable type 3-output DC motor driver module. This module can change the output
voltage for driving the DC motor by inputting PWM signal or DC voltage into the control terminal. The power
conversion rate is high, and power saving of the application can be realized, since the input voltage can be
changed into the specified output voltage by the switching system. Further, this module can be used as the
output-variable type DC / DC converter as well.
Applications
Refeigerator, The rotation-control type DC motor driver and the output-variable type DC / DC converter
Features
1) Electrical power loss is small even when there is a difference between the input voltage and motor driving
voltage, since electrical power conversion efficiency is high (90% Typ.) as the switching system is employed
for changing the voltage.
2) Motor driving voltage can be set to any optional value by the output voltage control signal.
3) The control signal corresponds with both PWM signal and DC voltage.
4) The control terminal is easy to be designed, as it is only one-terminal type.
5) The three outputs are independent.
6) This can be used as the output-variable type DC / DC converter as well.
7) Space-saving package of SIP.
Absolute maximum ratings (Ta=25°C)
Parameter
Power supply voltage
Motor drive power supply voltage
Output current
CTL input voltage
Operating temperature range
Storage temperature range
Symbol
V
CC
V
M
I
O
1, 2, 3
V
CTL
Topr
Tstg
Limits
7
16.0
0.6(1.3 at peak)
∗
1
7
−10 ∼ +70
−25 ∼ +80
Unit
V
V
A
V
°C
°C
∗1
Derating required according to the output voltage and ambient temperature.
Recommended operating conditions (Ta=25°C)
Parameter
Power supply voltage
Motor drive power supply voltage
Symbol
V
CC
V
M
Min.
4.75
13
Typ.
5.0
14
Max.
5.25
15
Unit
V
V
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BP5807
Block diagram
V
M
1
ch1
4
M
HIGH SPEED
DRIVE CIRCUIT
V
CC
9
CONTROL
CIRCUIT
Micro controller
6
VOLTAGE CONVERSION
CIRCUIT
V
M
13
ch2
11
M
HIGH SPEED
DRIVE CIRCUIT
CONTROL
CIRCUIT
Micro controller
7
VOLTAGE CONVERSION
CIRCUIT
V
M
14
ch3
17
M
HIGH SPEED
DRIVE CIRCUIT
CONTROL
CIRCUIT
Micro controller
8
VOLTAGE CONVERSION
CIRCUIT
3
12
16
Pin descriptions
Pin No.
1,13,14
3,12,16
4
6
7
8
9
11
17
Pin name
V
M
GND
Vo1
CTL1
CTL2
CTL3
Vcc
Vo2
Vo3
Function
Input power supply pin for motor drive ; connect a low impedance capacitor with a recommended
capacitance of 100µF/35V.
Ground pin
Output pin for motor drive (ch1) ; connect a low impedance capacitor with a recommended
capacitance of 470µF / 35V.
Output voltage control pin (ch1) ;
PWM signal or DC signal is inputted.
The output voltage can be
changed either by changing the duty of PWM signal or by changing the DC voltage value.
∗1
Output voltage control pin (ch2) ;
PWM signal or DC signal is inputted.
The output voltage can be
∗1
changed either by changing the duty of PWM signal or by changing the DC voltage value.
Output voltage control pin (ch3) ;
PWM signal or DC signal is inputted.
The output voltage can be
changed either by changing the duty of PWM signal or by changing the DC voltage value.
Power supply pin
Output pin for motor drive (ch2) ; connect a low impedance capacitor with a recommended
capacitance of 470µF / 35V.
Output pin for motor drive (ch3) ; connect a low impedance capacitor with a recommended
capacitance of 470µF / 35V.
∗1
Make sure to use the external CR.
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BP5807
Electrical characteristics
(Unless otherwise noted, Ta=25°C, V
CC
=5V, V
M
=14V, I
O1
=I
O2
=I
O3
=0.4A, f
CTL
=50Hz, D
CTL
=100%)
Parameter
Symbol
Min.
11.82
Output voltage
V
O
1, 2, 3
½
η
f
CTL
11.82
5.41
Ripple noise voltage
Efficiency
CTL frequency
∗1
Spike noise is not included.
∗2
Efficiency=
V
O
1×I
O
1+V
O
2×I
O
2+V
O
3×I
O
3
V
M
×I
M
Typ.
12.82
12.82
6.41
50
90
−
Max.
13.52
13.0
7.41
150
−
−
Unit
V
V
V
mV
P-P
%
Hz
V
M
=13V
Conditions
D
CTL
1, 2, 3=50%
∗1
∗2
−
80
50
Measurement circuit
BP5807
1
VM
3
4
+
6
C7
+
7
C8
+
8
C9
9
11
12
13
14
16
17
+
+
R1
R2
R3
V
CC
+
+
+
+
C1
C2
CTL1 CTL2 CTL3
C3
C4
C5
C6
C1, 4, 5 : 100µF / 35V (Low impedance)
C2, 3, 6 : 470µF / 35V (Low impedance)
C7, 8, 9 : 4.7µF / 16V
R1, 2, 3 : 750kΩ±1%
Vo1
Vo2
Vo3
Fig.1
Circuit operations
(1) Description
BP5807 is a DC motor driver that can establish any output voltage by inputting PWM signal and DC voltage
into the control pin(6, 7, 8pin).Electrical power loss is small even when there is a difference between
the input voltage and output voltage, since changing from the input voltage into the specified output
voltage can be made by the switching system. This module is most suitable in case that the number of
rotation of the motor is controlled by changing the driving voltage, or in case that the motor of a lower
specified voltage than 14V is driven by the electrical power source of 14V.
(2) Control signals
1) PWM signal : the output voltage will be controlled by that duty. The larger the duty is, the higher the output
voltage will be. It is necessary to be attentive, because the output voltage value changes depending on the
H-level and L-level values of PWM signal as well, at this time.
2) DC voltage : the output voltage will be controlled by that voltage value. The higher the voltage, the
higher the output voltage will be.
(3) The two outputs are independent. It is possible to control each output independently with a different kind of
the control signal (PWM signal or DC voltage).
5.00V
1
[Hz]
T
T
H
×100
[%]
T
f
CTL
=
D
CTL
=
0V
(Duty of cintol signal)
T
H
T
T
L
Fig.2
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BP5807
Application example
BP5807
1
14V
Power Supply
for Motor
+
3
4
6
7
8
9
11
12
13
+
14
+
16
17
+
+
+
100µF
Be sure to use
fuse for safety
+
+
100
µF
100µF
5V
+
470µF
Control Signal
470µF
470µF
Fig.3
Operation notes
(1) The output current should be reduced according to an increase in the output voltage or ambient
temperature. Use the module within the derating curve range.
(2) The protection circuit for output current is not incorporated. Be sure to take safety measures such as
fusing if short-circuit loads or overcurrent is probable.
(3) External capacitor
Since the switching system is employed for the purpose of changing the voltage, ripple current flows to the
capacitor to be added to pins 1, 4, 11, 13, 14, 17. Select the product of which allowable ripple current is
more than this value.
Electrical characteristic curves
14
14
for PWM
OUTPUT CURRENT : I
O
(A)
for DC voltage
12
OUTPUT VOLTAGE : V
O
(V)
10
8
6
4
2
0
80
100
0
1
2
3
4
5
DC VOLTAGE : V
CTL
(V)
Operating : 2sec.
Standby : 2min.
OUTPUT VOLTAGE : V
O
(V)
1.3×
V
O
12.8
12
10
8
6
4
2
5.00V
0V
f
CTL
=1kHz
0
20
40
60
V
O
0.6×
12.8
Successive
operating
0.25×
V
O
12.8
0
0
40
70
100
AMBIENT TEMPERATURE : Ta(°C)
0
DUTY : D
CTL
(%)
Fig.4
Derating
EX. Output voltage : 8V
8
0.6
×
= 0.375A
12.8
curve
Fig.5
Output
voltage vs. Duty
Fig.6
Output
voltage vs. DC voltage
External dimensions (Units : mm)
47.50Max.
24.0Max.
1pin SIDE MARK
12.0Max.
Marked side
Marked
side
3.5±0.5
1
3 4
6 7 8 9
11 12 13 14
0.5±0.1
1.3±0.2
16 17
0.25±0.05
P=2.54±0.2
3.3Max.
2.54×17=40.64
8.20Max.
3.80Max.
SIP17
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Precautions on Use of ROHM Power Module
Safety Precautions
1) The products are designed and produced for application in ordinary electronic equipment (AV equipment,
OA equipment, telecommunication equipment, home appliances, amusement equipment etc.).
If the products are to be used in devices requiring extremely high reliability (medical equipment, transport
equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car
accessories, safety devices, etc.) and whose malfunction or operational error may endanger human life
and sufficient fail-safe measures, please consult with the Company's sales staff in advance. If product
malfunctions may result in serious damage, including that to human life, sufficient fail-safe measures
must be taken, including the following:
[a] Installation of protection circuits or other protective devices to improve system safety
[b] Installation of redundant circuits in the case of single-circuit failure
2) The products are designed for use in a standard environment and not in any special environments.
Application of the products in a special environment can deteriorate product performance. Accordingly,
verification and confirmation of product performance, prior to use, is recommended if used under the
following conditions:
[a] Use in various types of liquid, including water, oils, chemicals, and organic solvents
[b] Use outdoors where the products are exposed to direct sunlight, or in dusty places
[c] Use in places where the products are exposed to sea winds or corrosive gases, including
Cl2, H2S, NH3, SO2, and NO2
[d] Use in places where the products are exposed to static electricity or electromagnetic waves
[e] Use in proximity to heat-producing components, plastic cords, or othe flammable items
[f] Use involving sealing or coating the products with resin or other coating materials
[g] Use involving unclean solder or use of water or water-soluble cleaning agents for cleaning after
soldering
[h] Use of the products in places subject to dew condensation
3) The products are not radiation resistant.
4) The Company is not responsible for any problems resulting from use of the products under conditions not
recommended herein.
5) The Company should be notified of any product safety issues. Moreover, product safety issues should be
periodically monitored by the customer.
Precautions Regarding Application Example and External Circuits
1) If change is made to the constant of an external circuit, allow a sufficient margin due to variations of the
characteristics of the products and external components, including transient characteristics, as well as
static characteristics. Please be informed that the Company has not conducted investigations on whether
or not particular changes in the application examples or external circuits would result in the infringement
of patent rights of a third party.
2) The application examples, their constants, and other types of information contained herein are applicable
only when the products are used in accordance with standard methods.
Therefore, if mass production is intended, sufficient consideration to external conditions must be made.
Prohibitions Regarding Industrial Property
1) These Specifications contain information related to the Company’s industrial property. Any use of them
other than pertaining to the usage of appropriate products is not permitted. Duplication of these
Specifications and its disclosure to a third party without the Company’s permission is prohibited.
2) Information and data on products, including application examples, contained in these specifications are
simply for reference; the Company does not guarantee any industrial property rights, intellectual property
rights, or any other rights of a third party regarding this information or data. Accordingly, the Company
does not bear any responsibility for:
[a] infringement of the intellectual property rights of a third party
[b] any problems incurred by the use of the products listed herein.
3) The Company prohibits the purchaser of its products to exercise or use the intellectual property rights,
industrial property rights, or any other rights that either belong to or are controlled by the Company, other
than the right to use, sell, or dispose of the products.
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