KA8301-L [FAIRCHILD]
Bi-Directional DC Motor Driver; 双向DC电机驱动器
| 型号： | KA8301-L |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | Bi-Directional DC Motor Driver |
| 文件： | 总13页 (文件大小：395K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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KA8301
Bi-Directional DC Motor Driver
Features
Description
• Built-in brake function.
The KA8301 is a monolithic integrated circuit designed for
driving bi-directional DC motor with braking and speed con-
trol, and it is suitable for the loading motor driver of VCR
systems. The speed control can be achieved by adjusting the
external voltage of the speed control pin.
• Built-in element to absorb a surge current derived from
changing motor direction and braking motor drive.
• External motor speed control pin
• Motor direction change circuit.
• Interfaces with CMOS devices.
10-SIPH-B
Typical Application
Ordering Information
• Video cassette recorder (VCR) loading motor
• Low current DC motor such audio or video equipment
• General DC motor
Device
Package
Operating Temp.
KA8301-L 10-SIPH-B
−25°C ~ +75°C
Rev. 1.0.1
February. 2000.
©2000 Fairchild Semiconductor International
1
KA8301
Pin Assignments
KA8301
GND
V
V
V
F
R
V
V
V
V
OUT1
2
Z1
R
IN
IN
CC1
7
CC2
8
Z2
OUT2
10
1
3
4
5
6
9
Pin Definitions
Pin Number
Pin Name
I/O
Pin Function Description
1
2
GND
-
O
-
Ground
V
OUT1
Output 1
3
V
Phase compensation
Motor speed control
Input 1
Z1
4
V
R
I
5
F
IN
I
6
R
IN
I
Input 2
7
V
-
Supply voltage (Signal)
Supply voltage (Power)
Phase compensation
Output 2
CC1
CC2
8
V
I
9
V
I
Z2
10
V
OUT2
O
2
KA8301
Internal Block Diagram
DRIVER
LOGIC
PRE-DRIVER
1
2
3
4
5
6
7
8
9
10
GND
V
V
V
F
IN
R
V
V
V
V
OUT2
OUT1
Z1
R
IN
CC1
CC2
Z2
3
KA8301
Equivalent Circuits
Description
Pin No.
Internal circuit
Output
2, 10
Vcc
Vcc
2
10
Phase
3, 9
compensation
3
9
Speed control
4
Vcc
Vcc
VCC
4
4
KA8301
Equivalent Circuit (Continued)
Description
Pin No.
Internal circuit
Input
5, 6
Vcc
Vcc
VCC
5
6
VCC1
VCC2
7
8
GND
1
5
KA8301
Absolute Maximum Ratings (Ta=25°C)
Parameter
Symbol
Value
18
Unit
V
Supply voltage
V
CCmax
Maximum output current
Power dissipation
Input voltage
I
1.6note1
15note2
A
Omax
P
d
W
V
V
−0.3 ~ V
CC
IN
Operating temperature
Storage temperature
T
−25 ~ +75
°C
°C
OPR
T
−55 ~ +150
STG
Notes:
1. Duty 1/100, pulse width 500µs
2. 1) When mounted on glass epoxy PCB (76.2 × 114 × 1.57mm)
2) Power dissipation reduces 120mW / °C for using above Ta=25°C
3) Do not exceed Pd and SOA(Safe Operating Area).
Power Dissipation Curve
20
Pd (W)
15
SOA
0
0
25
50
75
100
125
150
175
Ambient temperature, Ta [°C]
Recommened Operating Conditions (Ta=25°C)
Parameter
Symbol
Value
Unit
Operating supply voltage
V
8 ~ 18
V
CC
6
KA8301
Electrical Characteristics (Ta=25°C, Vcc=12V)
Parameter
Quiescent current
Symbol
Conditions
Pin5 & 6: GND, R =∞
Min.
Typ.
5.5
10
Max.
20
50
50
2.0
2.0
1
Units
mA
µA
µA
V
I
3
Q
L
Min. input-on current 1
Min. input-on current 2
Input threshold voltage 1
Input threshold voltage 2
Output leakage current 1
Output leakage current 2
Zener current 1
I
I
R =∞, pin5=I , pin6=L
L IN1
-
-
IN1
IN2
R =∞, pin5=L, pin6=I
L IN2
10
V
V
R =∞, pin5=V
L INTH1
, pin6=L
0.7
0.7
-
1.3
1.3
-
INTH1
INTH2
R =∞, pin5=L, pin6=V
L INTH2
V
I
R =∞, pin5 & 6=GND
L
mA
mA
mA
mA
V
OL1
OL2
I
R =∞, pin5 & 6=GND
L
-
-
1
I
I
R =∞, pin5=H, pin6=L
L
-
0.85
0.85
7.2
7.1
0.83
1.5
1.5
-
Z1
Z2
Zener current 2
R =∞, pin5=L, pin6=H
L
-
Output voltage 1
V
V
R =60Ω, pin5=H, pin6=L
L
6.6
6.6
-
O1
O2
Output voltage 2
R =60Ω, pin5=L, pin6=H
L
-
V
Saturation voltage (Pin10-1)
V
R =R =∞, pin5=H, pin6=L,
1.5
V
CE10-1
L
C
I
=100mA
SINK
Saturation voltage (Pin2-1)
Saturation voltage (Pin8-2)
Saturation voltage (Pin8-10)
V
R =R =∞, pin5=L, pin6=H,
-
-
-
0.83
0.83
0.83
1.5
1.5
1.5
V
V
V
CE2-1
CE8-2
CE8-10
L
C
I
=100mA
SINK
V
R =R =∞, pin5=H, pin6=L,
L C
I
=100mA
SOURCE
V
R =R =∞, pin5=L, pin6=H,
L
C
I
=100mA
SOURCE
7
KA8301
Application Information
1. FORWARD AND REVERSE CONTROL LOGIC
Pin #5
Pin #6
Pin #2
Pin #10
Function
Brake
L (0.7V ↓)
L (0.7V ↓)
H (2.0V ↑)
H (2.0V ↑)
L (0.7V ↓)
H (2.0V ↑)
L (0.7V ↓)
H (2.0V ↑)
L
L
L
H
L
Reverse
Forward
Brake
H
H
H
• If pin #5=H, pin #6=L, load current flows from pin #2 to pin #10 through a motor.
• If pin #5=L, pin #6=H, load current flows from pin #10 to pin #2 through a motor.
• If pin #5=pin #6=L or pin #5=pin #6=H, the KA8301 stops supplying the power to motor while absorbing counter EMF
from the motor as a brake.
2. RUSH CURRENT RESTRICTING CIRCUIT
If a high voltage generated during reversing operation is applied across pin #2 and pin #10, an internal comparator activates
the rush current restricting circuit.
3. DRIVE CIRCUIT
In the forward mode, the drive circuit supplies a load current to the motor from pin #2 to pin #10.
In the reverse mode, it supplies the current from pin #10 to pin #2.
The output voltage (V ) applied to the motor is given by the followings;
OUT
V
OUT
= V − V (sat), where V : a zener voltage applied to pin #4
ZD CE ZD
If pin #4 is left open, the output voltage is given by the followings;
V
OUT
= V
− V (sat, pnp) − 2V − V (sat)
CE CE
CC1
F
8
KA8301
Typical Performance Characteristics
9
KA8301
Typical Performance Characteristics (Continued)
10
KA8301
Typical Performance Characteristics (Continued)
11
KA8301
Test Circuits
KA8301
GND
1
V
V
V
F
R
V
V
V
V
OUT1
2
Z1
R
IN
IN
CC1
CC2
8
Z2
OUT2
10
3
4
5
6
7
9
C
D
0.1µF
A
S4
S3
S7
S1
S2
RC
10Ω
A
S5
A
A
S6
V
CC
Z
D
7.4V
V
IN
Typical Application Circuits
KA8301
GND
1
V
V
V
4
F
R
V
V
V
V
OUT1
2
Z1
R
IN
IN
CC1
7
CC2
8
Z2
OUT2
3
5
6
9
10
10
V
CC
0.1µ
M
12
KA8301
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER
DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
INTERNATIONAL. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, and (c) whose failure to
perform when properly used in accordance with
instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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2000 Fairchild Semiconductor International
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