BP5801 Rohm Semiconductor, BP5801 Datasheet - Page 3

• Manufacturer Part Number: BP5801
• Description: IC DRIVER SWITCHING MOTOR SIP9
• Manufacturer: Rohm Semiconductor

Specifications of BP5801

• Applications: DC Motor Driver
• Number Of Outputs: 1
• Current - Output: 400mA
• Voltage - Load: 11 V ~ 13 V
• Voltage - Supply: 12 V ~ 15 V
• Operating Temperature: -10°C ~ 60°C
• Mounting Type: Through Hole
• Package / Case: 9-SIP (8 Leads)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(1) Description
(2) Control signals
Measurement circuit
Circuit operations
BP5801 is a DC motor driver that can establish any output voltage by inputting PWM signal and DC voltage
into the control pin (3pin).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 13V is driven by the electrical power supply of 13V.
1) PWM signal
2) DC voltage
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.
The output voltage will be controlled by PC voltage value. The higher the voltage, the higher the output
voltage will be.
I
O
A
1
Output voltage control signal (Pin 3)
5.00V
C2
0V
V
2
V
O
Note) Output voltage is different by the level of "H" and "L"
3
CTL
Fig.2
See
T
H
BP5801
T
5
Fig.1
T
L
6
Fig.2
7
V
IN
C1 : 100 F / 35V (Low impedance)
C2 : 470 F / 35V (Low impedance)
8
V
f
D
(Duty of control signal)
CTL
CTL
=
=
9
1
T
T
T
C1
H
100 (%)
A
I
IN
V
IN
BP5801
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