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參數(shù)資料
| 型號(hào)： | BP5801 |
| 廠商： | Rohm CO.,LTD. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | High efficiency switching-type motor driver |
| 中文描述： | 高效率的開關(guān)式電機(jī)驅(qū)動(dòng)器 |
| 文件頁(yè)數(shù)： | 3/7頁(yè) |
| 文件大小： | 65K |
| 代理商： | BP5801 |
BP5801
Measurement circuit
Circuit operations
(1) Description
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.
(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 PC voltage value. The higher the voltage, the higher the output
voltage will be.
I
O
C2
See
Fig.2
Fig.1
CTL
I
IN
V
IN
V
IN
+
C1
C1 : 100
μ
F / 35V (Low impedance)
C2 : 470
μ
F / 35V (Low impedance)
BP5801
1
2
3
5
6
7
8
9
+
A
V
A
V
O
V
T
H
0V
5.00V
T
T
L
f
CTL
=
D
CTL
=
×
100 (%)
T
(Duty of control signal)
1
T
T
H
Fig.2
Output voltage control signal (Pin 3)
Note) Output voltage is different by the level of "H" and "L"
3/6
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