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M54641FP 参数 Datasheet PDF下载

M54641FP图片预览
型号: M54641FP
PDF下载: 下载PDF文件 查看货源
内容描述: 带制动功能的双向电机驱动器 [Bi-Directional Motor Driver with Brake Function]
分类和应用: 驱动器运动控制电子器件信号电路光电二极管电动机控制电机
文件页数/大小: 9 页 / 187 K
品牌: RENESAS [ RENESAS TECHNOLOGY CORP ]
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M54641L/FP
Bi-Directional Motor Driver with Brake Function
REJ03F0043-0100Z
Rev.1.0
Sep.19.2003
Description
The M54641 is a semiconductor integrated circuit that is capable of directly driving a smallsize bi-directional motor
rotating in both forward and reverse directions.
Features
Wide range of operating voltage (V
CC
= 4 – 10V,V
CC
’(max) = 20V)
Low output saturation voltage in stationary motor circuit (largevoltage across motors)
Built-in clamp diode
Provided with output voltage control pin (V
Z
)
Built-in thermal shutdown circuit (Tj(shut) = 120°C standard)
Application
Sound equipment such as tape deck and radio cassette, and VTR
Function
The M54641 is an IC for driving a smallsize bi-directional motor that rotates in both forward and reverse directions.
Giving signal to inputs IN1 and IN2 outputs the signal of the same phase to output pins O1 and O2. That is, giving
high-level signal to input IN1 and low-level signal to input IN2 sets output O1 to high-level and output O2 to low-level.
Connection of a motor between output pins O1 and O2 uses O1 as an output current source and O2 as an output current
sink to rotate the motor. In addition, giving the reverse signal to inputs IN1 and IN2 sets O1 and O2 to low-level and
high-level, respectively, resulting in rotating the motor reversely.
However, when both IN1 and IN2 are set to “H”, both O1 and O2 are set to low-level, resulting in sudden stop of motor
rotation. (Brake mode)
If the Zener diode of certain voltage, for example, is added to the V
Z
pin, the output “H” voltage does not rise over the
Zener voltage and the motor rotates at constant speed.
If the V
Z
pin is connected to the output power supply V
CC
’ pin, the rotating speed of the motor can be varied by varying
the V
CC
’ voltage.
The motor rush current and the current with the motor put in stationary status are as follows: Iop(max) = 800mA and
I
O
(max) = 150mA.
Rev.1.0, Sep.19.2003, page 1 of 8