M54543L Datasheet, PDF (1/4 Pages) Mitsubishi Electric Semiconductor – Bi-DIRECTIONAL MOTOR DRIVER WITH BRAKE FUNCTION

MITSUBISHI ICs (AV COMMON)
M54543L
Bi-DIRECTIONAL MOTOR DRIVER WITH BRAKE FUNCTION
DESCRIPTION
The M54543L 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) = ±1.2A)
With brake function
APPLICATION
Commercial-use equipment, audio such as tape recorder or radio
cassette recorder, and VCR.
FUNCTIONAL DESCRIPTION
The M54543L 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'.
PIN CONFIGURATION (TOP VIEW)
POWER SUPPLY 1 VCC1
1
DRIVER POWER SUPPLY 1 VCC' 1
2
OUTPUT 2
O2
3
INPUT 1 IN1
4
GND 5
INPUT 2 IN2
6
OUTPUT 1
O1
7
DRIVER POWER SUPPLY 2 VCC' 2
8
POWER SUPPLY 2 VCC2
9
Outline 9P9
LOGIC TRUTH TABLE
INPUT
IN1
IN2
L
L
H
L
L
H
H
H
OUTPUT
O1
"OFF"
state
H
O2
"OFF"
state
L
L
H
L
L
NOTE
Open
ex.Forward
ex.Reverse
Braking
BLOCK DIAGRAM
POWER SUPPLY 1
VCC1
1
DRIVER POWER
SUPPLY 1
VCC' 1
2
OUTPUT 2
O2
3
DRIVER POWER
OUTPUT 1 SUPPLY 2
O1
VCC' 2
7
8
POWER SUPPLY 2
VCC2
9
4
IN1
INPUT 1
5
GND
6
IN2
INPUT 2