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KA3082
Bi-Directional DC Motor Driver
Features
• Built-in Brake Function for Stable Brake Characteristics.
• Built-in Element to Absorb a Surge Current Derived From
Changing Motor Direction and Braking Motor Drive.
• Motor Speed Control by an External Voltage.
• Stable Motor Direction Change.
• Interfaces With CMOS Devices.
• Built-in the Thermal Shut Down Circuit (165°C).
• Low Standby Current. (6.5mA)
Description
The KA3082 is a monolithic integrated circuit designed for
driving bi-directional DC motor with braking and speed
control, and it is suitable for the loading motor driver of
VCR, CDP, and TOY systems. The speed control can be
achieved by adjusting the external voltage of the speed
control pin. It has two pins of logic inputs for controlling the
forward/ reverse and braking.
10-SIP
Target Applications
• Video Cassette Recorder (VCR) Loading Motor
• Low Current DC Motor Such as Audio or Video
Equipment.
• General DC Motor
Ordering Information
Device
KA3082B
Package
10-SIP
Operating Temp.
-25°C ~ +75°C
Rev. 1.0.2
©2002 Fairchild Semiconductor Corporation
KA3082
Absolute Maximum Ratings (Ta=25°C)
°
Parameter
Supply Voltage
Maxium Output Current
Power Dissipation
Operating Temperature
Storage Temperature
Symbol
V
CCmax
I
Omax
P
d
T
OPR
T
STG
Value
18
1.6
note1
1.2
note2
-25 ~ +75
-55 ~ +125
Unit
V
A
W
°C
°C
Remark
-
-
-
-
-
Note:
1. Duty 1 / 100, pulse width 500µs
2. 1) When mounted on glass epoxy PCB (76.2
×
114
×
1.57mm)
2) Power dissipation reduces 9.6mV /
°C
for using above Ta=25°C.
3)
Do not exceed Pd and SOA(Safe Operating Area).
Power Dissipation Curve
Pd (mW)
1, 200
SOA
0
0
25
50
75
100
150
15
125
Ambient temperature, Ta [°C]
Recommened Operating Conditions (Ta=25°C)
°
Parameter
Operating Supply Voltage
Symbol
SV
CC,
PV
CC
Operating voltage range
7 ~ 18
Unit
V
Note:
Caution 1) PV
CC
≤
SV
CC
Caution 2) When PV
CC
is above 16V, the V
CTL
must be opened or 8.5
≤
V
CTL
≤
PV
CC
5