Mitsubishi M54543AL Datasheet
WITH BRAKE FUNCTION AND THERMAL SHUT DOWN FUNCTION
PIN CONFIGURATION (TOP VIEW)
192345678
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
"OFF"
state
"OFF"
state
DRIVER POWER
SUPPLY 2
VCC' 2
OUTPUT 1
O1
OUTPUT 2
O2
GND
DRIVER POWER
SUPPLY 1
VCC' 1
POWER SUPPLY 1
VCC1
IN1
INPUT 1
POWER SUPPLY 2
VCC2
IN2
INPUT 2
THERMAL
SHUT
DOWN
1
CONTROL
CIRCUIT
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.
MITSUBISHI ICs (AV COMMON)
M54543AL
Bi-DIRECTIONAL MOTOR DRIVER
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
2 7 9
3
Outline 9P9
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
8
NOTE
4
5
6
MITSUBISHI ICs (AV COMMON)
M54543AL
Bi-DIRECTIONAL MOTOR DRIVER
WITH BRAKE FUNCTION AND THERMAL SHUT DOWN FUNCTION
ABSOLUTE MAXIMUM RATINGS (Ta=25°C, unless otherwise noted)
Symbol Parameter Conditions Ratings Unit
VCC (1) Supply voltage (1) -0.5 to +16 V
VCC (2) Supply voltage (2) With an external heat sink (3000mm2×1.5mm) -0.5 to +20 V
VCC' Driver supply voltage -0.5 to +16 V
VI Input voltage 0 to VCC V
VO Output voltage -0.5 to VCC'+2.5 V
IO (max) Peak output current top=10ms : Repetitive cycle 0.2Hz max ±1.5 A
IO (1) Continuous output current (1) ±330 mA
IO (2) Continuous output current (2) With an external heat sink (3000mm2×1.5mm) ±600 mA
Pd Power dissipation Ta=75°C 1.15 W
Topr Operating temperature -10 to +75 °C
Tstg Storage temperature -55 to +125 °C
RECOMMENDED OPERATING CONDITIONS (Ta=25°C, unless otherwise noted)
Symbol Parameter Test conditions Unit
VCC Supply voltage 4 12 15 V
IO Continuous output current ±300 mA
VIH "H" Input voltage 2 VCC V
VIL "L" Input voltage 0 0.4 V
tB Motor braking interval 10 100 ms
Tj (shut) Thermal shutdown temperature VCC≥7V 150 °C
Limits
Min. Typ. Max.
ELECTRICAL CHARACTERISTICS (Ta=25°C, unless otherwise noted)
Symbol Parameter
IO (leak) Output leak current
VOH (1) "H" Output saturation voltage (1) VCC=VCC'=12V
VOH (2) "H" Output saturation voltage (2) VCC=VCC'=12V
VOL (1) "L" Output saturation voltage (1) VCC=VCC'=12V
VOL (2) "L" Output saturation voltage (2) VCC=VCC'=12V
IIH (1) "H" Input current (1)
IIH (2) "H" Input current (2)
ICC Supply current
VCC=VCC'=20V
VI1=VI2=0V
VCC=VCC'=12V, VI1=2V, VI2=0V
VCC=VCC'=12V, VI1=0V, VI2=2V
VCC=VCC' =16V
Output open
Test conditions
VI1=2V
VI2=0V
VI1=0V
VI2=2V
VI1=0V
VI2=2V
VI1=VI2=2V
VI1=2V
VI2=0V
VI1=VI2=2V
VO=20V
VO=0V
IOH (1)=-200mA
IOH (1)=-500mA
IOH (2)=-200mA
IOH (2)=-500mA
IOL (1)=200mA
IOL (1)=500mA
IOL (2)=200mA
IOL (2)=500mA
VI1=2V, VI2=0V
VI1=0V, VI2=2V
VI1=VI2=2V
VI1=VI2=0V
Limits
Min. Typ. Max.
100
-100
10.8 11.2
10.7 11.1
10.8 11.2
10.7 11.1
0.2 0.5
0.95 1.35
0.95 1.35
0.2 0.5
0.95 1.35
0.95 1.35
50 120
50 120
20
20
Unit
µA
V
V
V
V
µA
µA
mA
4
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