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PDF M54544L Data sheet ( Hoja de datos )
| Número de pieza | M54544L | |
| Descripción | Bi-DIRECTIONAL MOTOR DRIVER WITH BRAKE FUNCTION | |
| Fabricantes | Mitsubishi | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de M54544L (archivo pdf) en la parte inferior de esta página. Total 4 Páginas | ||
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MITSUBISHI <CONTROL / DRIVER IC>
M54544L
Bi-DIRECTIONAL MOTOR DRIVER WITH BRAKE FUNCTION
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.
PIN CONFIGURATION (TOP VIEW)
Power supply 1 VCC1
Output power supply 1 VCC’1
Output 2
O2
Input 1
IN1
GND
Input 2
IN2
Output 1
O1
Output power supply 2 VCC’2
Power supply 2 VCC2
1
2
3
4
5
6
7
8
9
Outline 9P9
LOGIC TRUTH TABLE
Input
IN1 IN2
LL
HL
LH
HH
Output
O1 O2
Remarks
“OFF” state “OFF” state No operation of IC
H L ex Forward rotation
L H Reverse rotation
LL
Brake
BLOCK DIAGRAM
Power supply 1
VCC1
1
Output power supply 1
VCC’1
2
Output 2 Output 1
O2 O1
37
Output power supply 2
VCC’2
8
Power supply 2
VCC2
9
4
IN1
Input 1
5
GND
6
IN2
Input 2
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet M54544L.PDF ] | |
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