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M54544L Datasheet(PDF) 1 Page - Mitsubishi Electric Semiconductor

No. de Pieza. M54544L
Descripción  Bi-DIRECTIONAL MOTOR DRIVER WITH BRAKE FUNCTION
Descarga  4 Pages
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Fabricante  MITSUBISHI [Mitsubishi Electric Semiconductor]
Página de inicio  http://www.mitsubishichips.com
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M54544L Datasheet(HTML) 1 Page - Mitsubishi Electric Semiconductor

   
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Bi-DIRECTIONAL MOTOR DRIVER WITH BRAKE FUNCTION
M54544L
MITSUBISHI <CONTROL / DRIVER IC>
PIN CONFIGURATION (TOP VIEW)
DESCRIPTION
The M54544L is a semiconductor integrated circuit that is capable
of directly driving a smallsize bi-directional motor rotating in both
forward and reverse directions.
FEATURES
qWide range of operating voltage (VCC=4 – 16V)
qPossible direct driving with TTL, PMOS and CMOS IC outputs
qLow output saturation voltage (large voltage across motors)
qBuilt-in clamp diode
qLarge output current drive (IO(max) =
±1.2A)
qProvided with brake function
APPLICATION
Sound equipment such as tape deck and radio cassette, VTR, and
other general consumer appliances
FUNCTION
The M54544L is an IC for driving a smallsize bi-directional motor
that rotates in both forward and reverse directions.
When both inputs 1 and 2 are set to low-level, outputs 1 and 2 are
set to “OFF”. When input 1 is set to high-level and input 2 is set to
low-level, output 1 is set to high-level and output 2 is set to low-
level (forward rotation status). When input 1 is set to low-level and
input 2 is set to high-level, output 1 is set to low-level and output 2
is set to high-level (reverse rotation). When both inputs 1 and 2
are set to high-level, both outputs 1 and 2 are set to low-level
(brake status).
The power supply (VCC) to the control circuit and the power supply
(VCC’) for output are independently provided. The rotating speed of
the motor can be therefore changed by using VCC and VCC’ as
different power supplies and by making VCC or VCC’ variable.
If the resistance of the motor is high (light load and small drive
current: tens of mA), and VCC is larger than VCC’, current does not
flow backward from the VCC pin to the VCC’ pin.
Outline 9P9
1
4
3
2
5
6
7
8
IN1
VCC1
VCC1
GND
IN2
VCC2
9
VCC2
O1
Input 1
Power supply 1
Output power supply 1
Input 2
Output power supply 2
Power supply 2
Output 2
Output 1
O2
Input
Output
Remarks
IN1
IN2
LL
HL
LH
HH
“OFF” state “OFF” state
HL
LH
LL
O1
O2
No operation of IC
ex Forward rotation
Reverse rotation
Brake
LOGIC TRUTH TABLE
BLOCK DIAGRAM
1
2
3
7
8
9
4
5
6
IN1
VCC1
VCC1
O2
Output power supply 1
Output 1
Power supply 1
O1
Output 2
VCC2
Output power supply 2
VCC2
Input 1
IN2
Input 2
GND
Power supply 2


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