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M54543AL Datasheet(PDF) 1 Page - Mitsubishi Electric Semiconductor

No. de Pieza. M54543AL
Descripción  Bi-DIRECTIONAL MOTOR DRIVER WITH BRAKE FUNCTION AND THERMAL SHUT DOWN FUNCTION
Descarga  4 Pages
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Fabricante  MITSUBISHI [Mitsubishi Electric Semiconductor]
Página de inicio  http://www.mitsubishichips.com
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M54543AL Datasheet(HTML) 1 Page - Mitsubishi Electric Semiconductor

   
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Bi-DIRECTIONAL MOTOR DRIVER
WITH BRAKE FUNCTION AND THERMAL SHUT DOWN FUNCTION
M54543AL
MITSUBISHI ICs (AV COMMON)
DESCRIPTION
The M54543AL is a semiconductor IC capable of directly driving a
smallsize bi-directional motor for forward/reverse rotation.
FEATURES
Wide operating voltage range (Vcc = 4V to 16V)
Direct drive capability by TTL, PMOS and CMOS IC outputs
Low output saturation voltage (large voltage across motor)
Built-in clamp diode
Large output current drive (Io (max) =
±1.5A)
With brake function
Built-in thermal shut-down protector circuit
APPLICATION
Commercial-use equipment, audio such as tape recorder or radio
cassette recorder, and VCR.
FUNCTIONAL DESCRIPTION
The M54543AL is an IC for driving a smallsize bi-directional motor
for forward/reverse rotation. When both of inputs 1 and 2 are "L",
outputs 1 and 2 are "OFF". When input 1 is "H" and input 2 is "L",
output 1 is "H" and output 2 is "L" (forward rotation). When input 1
is "L" and input 2 is "H", output 1 is "L" and output 2 is "H" (reverse
rotation). When both of inputs 1 and 2 are "H", both of outputs 1
and 2 are "L" (braking).
The IC is provided with a control circuit power supply (Vcc) and an
output power supply (Vcc') independently. The motor rotation
speed can be changed by operating Vcc and Vcc' from a separate
supply and varying the voltage of Vcc or Vcc'.
The IC is also provided with a built-in thermal protector circuit to
protect it from thermal destruction in case of abnormal condition
such as motor blocking.
BLOCK DIAGRAM
PIN CONFIGURATION (TOP VIEW)
Outline 9P9
1
9
2
3
4
5
6
7
8
POWER SUPPLY 1
VCC1
POWER SUPPLY 2
VCC2
DRIVER POWER SUPPLY 1
VCC' 1
OUTPUT 2
O2
INPUT 1
IN1
GND
INPUT 2
IN2
OUTPUT 1
O1
DRIVER POWER SUPPLY 2
VCC' 2
LOGIC TRUTH TABLE
INPUT
OUTPUT
IN1
IN2
O1
O2
L
L
Open
H
L
H
L
ex.Forward
L
H
L
H
ex.Reverse
H
H
L
L
Braking
NOTE
"OFF"
state
"OFF"
state
3
5
DRIVER POWER
SUPPLY 2
VCC' 2
OUTPUT 1
O1
OUTPUT 2
O2
GND
4
DRIVER POWER
SUPPLY 1
VCC' 1
POWER SUPPLY 1
VCC1
IN1
INPUT 1
8
6
POWER SUPPLY 2
VCC2
IN2
INPUT 2
THERMAL
SHUT
DOWN
2
7
9
1
CONTROL
CIRCUIT


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