KA9259HD Fairchild Semiconductor, KA9259HD Datasheet - Page 9

• Manufacturer Part Number: KA9259HD
• Manufacturer: Fairchild Semiconductor

Specifications of KA9259HD

• Operating Temperature Classification: Commercial
• Package Type: SSOP
• Operating Supply Voltage (min): 6V
• Operating Supply Voltage (max): 13.2V
• Lead Free Status / RoHS Status: Compliant

• The V
• The external circuit is composed of the transistor(PNP), KSB772 and a capacitor(C1), 100µF, and the capacitor is used as a
• The output voltage, V
4. Loading Motor Driver
4.1 Truth table and Operation
• The input voltages of (5V and 0V) or (0V and 5V) pairs are applied to the input pin #9 and #14 respectively.
• When the input voltages are applied to the input pin #9 and #14, then the output of the comparator is decided depends on the
• As shown in the above diagram, the difference voltage, ∆V, is applied to the both terminals of the motor. The direction of
• The output characteristics is as follows,
4.2 Loading Motor Speed Control
• If the torque of the loading motor is too low when it is used with the pin #20 open, then it should used as the above diagram.
• The desired torque could be obtained by selecting the appropriate resistor R as shown in the left diagram.
• If it is necessary, the zener diode can be used as in the right diagram.
• The maximum torque is obtained when the applied voltage at pin #20 is about 6.8V (at V
ripple eliminator and should have a good temperature characteristics.
input voltage status.
the motor is decided by the voltage difference, +∆V and −∆V.
- If pin # 9=5V and #14=0V, then pin # 15=+∆V and #16= −∆V, hence the motor turn in forward direction.
- If pin # 9=0V and #14=5V, then pin # 15= −∆V and #16=+∆V, hence the motor turn in reverse direction.
- If pin # 9=5V and #14=5V, then ∆V=0V, hence the motor stop.
- If pin # 9=0V and #14=0V, then ∆V=0V, hence the motor stop.
PIN9(DI5.1)
REFBG
VCC
H
H
L
L
DI5.1
DI5.2
R
D
is the output voltage of the band-gap-referenced biasing circuit and is the reference voltage of the regulator.
INPUT
14
20
9
OUT
PIN14(DI5.2)
Loading Motor Driver
Control
is decided as follows.
Logic
Input
H
H
L
L
Control
Circuit
Speed
V
Where
OUT
PIN15(DO5.1)
=
,
1 (
R
Level
Shift
2
H
+
L
L
L
=
R
R
R
2
3
)
3
∆V
∆V
V
REFBG
PIN16 (DO5.2)
Buffer
Buffer
=
OUTPUT
2
×
H
L
L
L
2
5 .
=
[ 5
V
]
Q1
Q3
Forward
Reverse
Brake
Brake
State
CC
=8V).
Q2
Q4
21
15
16
13
KA9259D(KA9259HD)
M
9