M54641 Mitsubishi Electronics America, Inc., M54641 Datasheet
M54641
Manufacturer Part Number
M54641
Description
Bi-directional Motor Driver With Brake Function
Manufacturer
Mitsubishi Electronics America, Inc.
Datasheet
1.M54641.pdf
(4 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
M54641FP
Manufacturer:
MIT
Quantity:
20 000
Part Number:
M54641L
Manufacturer:
INFINEON/英飞凌
Quantity:
20 000
DESCRIPTION
The M54641 is a semiconductor integrated circuit that is capable of
directly driving a smallsize bi-directional motor rotating in both
forward and reverse directions.
FEATURES
APPLICATION
Sound equipment such as tape deck and radio cassette, and VTR
FUNCTION
The M54641 is an IC for driving a smallsize bi-directional motor
that rotates in both forward and reverse directions. Giving signal to
inputs IN
pins O
low-level signal to input IN
O
O
current sink to rotate the motor. In addition, giving the reverse
signal to inputs IN
level, respectively, resulting in rotating the motor reversely.
However, when both IN
set to low-level, resulting in sudden stop of motor rotation. (Brake
mode)
If the Zener diode of certain voltage, for example, is added to the
V
and the motor rotates at constant speed.
If the V
rotating speed of the motor can be varied by varying the V
voltage.
The motor rush current and the current with the motor put in
stationary status are as follows: I
150mA.
Z
2
2
BLOCK DIAGRAM
Wide range of operating voltage (V
Low output saturation voltage in stationary motor circuit (large
voltage across motors)
Built-in clamp diode
Provided with output voltage control pin (V
Built-in thermal shutdown circuit (T
pin, the output “H” voltage does not rise over the Zener voltage
to low-level. Connection of a motor between output pins O
uses O
1
Z
and O
1
pin is connected to the output power supply V
and IN
1
as an output current source and O
2
. That is, giving high-level signal to input IN
2
1
outputs the signal of the same phase to output
and IN
Input 1 IN
Input 2 IN
1
and IN
2
2
sets output O
sets O
2
1
2
are set to “H”, both O
1
op(max)
and O
j(shut)
CC
= 4 – 10V,V
1
= 120˚C standard)
= 800mA and I
circuit
circuit
to high-level and output
2
Input
Input
Z
to low-level and high-
Constant voltage
)
Power supply
source
V
2
CC
CC
as an output
’
1
(max)
GND
CC’
and O
Bi-DIRECTIONAL MOTOR DRIVER WITH BRAKE FUNCTION
Control
O(max)
pin, the
circuit
= 20V)
1
1
2
and
and
are
CC’
=
LOGIC TRUTH TABLE
PIN CONFIGURATION (TOP VIEW)
Output voltage
Output power
Output
Output
circuit
circuit
IN
Output voltage
H
H
L
L
Output power
Power supply
Output 1
1
Output power supply
control
Input 2
supply
Input
Output 2
Output 1
Input 1
Input 2
control
MITSUBISHI <CONTROL / DRIVER IC>
supply
V
V
IN
H
H
CC
NC
L
IN
L
CC
V
O
2
GND
Z
’
2
V
1
’
V
IN
IN
CC
CC
O
V
O
Z
2
1
2
1
’
1
2
3
4
5
Outline 10P2-C
“OFF”
1
2
3
4
5
6
7
8
state
O
H
L
L
1
Outline 8P5
Output
V
O
O
Z
2
1
M54641L/FP
Output voltage control
Output 2
Output 1
“OFF”
state
O
H
L
L
2
10
8
7
9
6
No operation of IC
ex
NC: no connection
GND
IN
O
V
NC
Reverse rotation
Forward rotation
CC
2
1
Remarks
Power supply
Input 1
Output 2
Brake
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M54641 Summary of contents
Page 1
... DESCRIPTION The M54641 is a semiconductor integrated circuit that is capable of directly driving a smallsize bi-directional motor rotating in both forward and reverse directions. FEATURES Wide range of operating voltage (V CC Low output saturation voltage in stationary motor circuit (large voltage across motors) Built-in clamp diode Provided with output voltage control pin (V ...
Page 2
... MITSUBISHI <CONTROL / DRIVER IC> Bi-DIRECTIONAL MOTOR DRIVER WITH BRAKE FUNCTION 2 Output circuit V CC GND =25˚C, unless otherwise noted) a Conditions V < =10ms: cycle time 0. 60˚C(M54641L 25˚C, unless otherwise noted) a Conditions M54641L/ ’ CC Output GND Ratings – -0.5 +12 – -0.5 +20 – ...
Page 3
... O(leak) V “H” output saturation voltage OH V “L” output saturation voltage OL Voltage between outputs (1) V O1-O2 and (2) (Voltage across Motor) I Input voltage I I Supply current CC TYPICAL CHARACTERISTICS Thermal Derating (M54641L) (Absolute Maximum Rating) 1 sec 1.4 1 10sec t = 1.0 0.8 0.6 0.4 0 Ambient Temperature T “ ...
Page 4
... When the IC is used at a high speed for PWM, etc., note that switching of output results in delay of approx Bi-DIRECTIONAL MOTOR DRIVER WITH BRAKE FUNCTION – 100 MITSUBISHI <CONTROL / DRIVER IC> M54641L/ M54641FP – 100 ...