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KA3082B 参数 Datasheet PDF下载

KA3082B图片预览
型号: KA3082B
PDF下载: 下载PDF文件 查看货源
内容描述: 双向DC电机驱动器 [Bi-Directional DC Motor Driver]
分类和应用: 驱动器运动控制电子器件信号电路电动机控制电机
文件页数/大小: 12 页 / 111 K
品牌: FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
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KA3082
Application Information
1. Thermal Shut Down Circuit
I
Q1
V1
R1
Q2
V2
R2
Q3
When Ta = 25°C, Q2 & Q3 are Turn-off and output stage operate normally.
V
1
= I
×
(R1 + R2)
V
2
= R2 / (R1 + R2)
×
V1 = 0.37V
When Ta = 165°C, Q2 & Q3 become Turn-on and it turn-off the output stage.
0.70V - 0.37V = 330mV (When Q
2
& Q
3
are Turn-on, Vbe
Q2
= Vbe
Q3
= 0.70V)
And temperature coefficient of Q
2
= Q
3
=
−2mV/°C
T.S.D: 330mV / 2mV = 165°C
2. Logic Input & Output Table
Input
Pin #5
Low
High
Low
High
Input High is above 2.0V.
Input Low is below 0.7V.
Pin #6
Low
Low
High
High
Pin #2
Low
High
Low
Low
Output
Pin #10
Low
Low
High
Low
Motor
Brake
Forward
Reverse
Brake
7