M54670P [RENESAS]
2-Phase Stepper Motor Driver; 两相步进电机驱动器
| 型号： | M54670P |
| 厂家： | 
RENESAS TECHNOLOGY CORP |
| 描述： | 2-Phase Stepper Motor Driver |
| 文件： | 总11页 (文件大小：195K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
M54670P
2-Phase Stepper Motor Driver
REJ03F0045-0100Z
Rev.1.0
Sep.19.2003
Description
The M54670P is a semiconductor IC to drive a bipolar stepper motor directly by controlling the coil current with the
constant current method.
Features
•
•
•
•
•
•
Wide operating voltage range – 35V)
Wide output current contro– 800mA)
Bipolar and constant cu
Built in flywheel
Current level can uously.
Built in a thermal s
Application
Office automation equipment such AX
Function
The M54670P can drive a stepper motor by talso control the coil current. Furthermore,
it controls the direction of the coil current with
The coil current value can be selected among four lee combination of three internal
comparators by logic input (pins 14, 15, 18 and 19). It lled with VR pins (pins 2 and 31).
By selecting an I input pin among pins 14, 15, 18 or 19, thcitation, 1-2-phase excitation
or microstep, can be selected.
Because two control circuits are built in this IC, a stepper motor cy the 2-phase bipolar
method.
Rev.1.0, Sep.19.2003, page 1 of 10
M54670P
Pin Configuration
Triangular wave
Circuit power supply
CT
(A)
V
V
CC
1
2
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
Comparator
reference input(A)
Output current
direction switching(A)
Output power
Comparator
V
R
R(B)
reference input(B)
Output current
direction switching(B)
Output power
supply(B)
Ph(A)
MM1(A)
O1(A)
Ph(B)
3
V
V
MM1(B)
4
supply(A)
Output(A)
Output(B)
O1(B)
5
6
7
GND
GND
8
9
10
11
12
13
14
15
Currnt sensor(A)
E(A)
E(B)
Current sensor(B)
tput(A)
Output(B)
O2(A)
MM2(A)
I0(A)
O2(B)
wer
Output power
supply(B)
V
V
MM2(B)
)
Output current
value setting(B)
Output current
value setting(B)
Comparator
input(B)
I0(B)
I1(B)
C(B)
)
32P4B
Rev.1.0, Sep.19.2003, page 2 of 10
M54670P
Block Diagram
2
3
4
5
32
12
13
29
28
21
20
30
31
Output current value
setting(A)
Output current value
setting(B)
I0(B)
I0(A)
14
15
19
18
Output current value
setting(A)
Output current value
setting(B)
I1(B)
TSD
I1(A)
11 01 10 00
6
23
27
GND
GND
Power
Power supply sensor
10
16
C(A)
Comparator input(A)
17
C(B)
(B)
Comparator input(B)
Absolute Maximum Ratings
25°C, unless otherwise noted.)
Parameter
Symbol
VCC
VMM
VL
Rating
−0.3 to 7
−0.3 to 40
−0.3 to 6
Vcc
ditions
Supply voltage
Output supply voltage
Logic input voltage
Comparator input voltage
Reference input voltage
Output current
VC
VR
7
V
IO
±1.0
A
Allowable power dissipation
Operating temperature
Storage temperature
Pd
1.92
W
°C
°C
Mounted on a board
Topr
Tstg
−20 to 75
−55 to 125
Rev.1.0, Sep.19.2003, page 3 of 10
M54670P
Recommended Operating Condition
(Ta = 25°C, VCC = 5.0V, unless otherwise noted.)
Limits
Min.
4.75
10
Parameter
Symbol
VCC
VMM
IR
Typ.
Max.
5.25
35
Unit
V
Supply voltage
5.00
Output supply voltage
Reference input voltage
Output current
V
0
800
800
2.0
V
IO
20
mA
µS
µS
°C
Logic input rise time
Logic input fall time
Thermal shutdown temperature*
tPLH
tPHL
TON
2.0
175
Note * : Refer to "PRECAUTIONS FOR USE."
Electrical characteristics
(Ta = 25°C, VCC = 5.0V, VMM = 10V, unless otherwise noted.)
mits
Parameter
Typ.
Max.
Vcc
0.8
Unit
Test conditions
Logic input voltage
“L”
V
VCC=5V
Comparator threshold
VC
ICO
IOFF
Vsat
480
05
mV
VR=5V, I0=I1=0
VR=5V, I0=1,I1=0
VR=5V, I0=0, I1=1
I0=I1=1(Ta=25°C)
Comparator input current
Output cutoff current
Saturation voltage
µA
A
Voltage at sensing resistor is not
included. IO=500mA
PWM oscillator frequency
Turnoff delay
fc
16.5
MM=10V, Cf = 3900pF
5°C, dVK/dt ≥ 50mV/µs
td
1.
8.0
180
20
Supply current
ICC
IIH
IIL
Logic input current
“H”
“L”
50
Application Description
(1) PHASE INPUT
Phase input decides the output mode.
Phase
O1
L
O2
H
H
L
H
L
Rev.1.0, Sep.19.2003, page 4 of 10
M54670P
(2) I0, I1
I0 and I1 fixed based on the comparative voltage VR decide the output current level.
I0
H
L
I1
H
H
L
Current level
0
Low
Typ
High
H
L
L
(3) VR (Comparative voltage)
The current level can be continuously changed by changing the voltage at VR continuously.
(4) Current sensor
When the voltage fall at the current sensing resistor and the selected current level become of the same level, the
output state is cut off for a certain time by inverting the comparator.
During this cutoff time, the current volume decreases slightly due to the L component of the motor and falls short of
the comparative level. Durinme fixed based on the PWM frequency, the output stage goes in ON state and
then in OFF state and this eration is repeated.
(5) PWM oscillator
A capacitor Cf is expin in order to fix the PWM oscillator frequency. The frequency fc is
calculated as foll
1
fc =
7.77 x 103 x C
f
(6) Analog control
The output current level can be cog the voltage at VR or the feedback voltage to the
comparator.
(7) Thermal shutdown function
This IC has a function to protect itself againsed when the chip temperature rises
abnormally.
Regarding this function, refer to “PRECAUTION
Rev.1.0, Sep.19.2003, page 5 of 10
M54670P
Timing Chart
2-phase excitation
Phase 1
Phase 2
I0, 1(A) = 0
I0, 1(B) = 0
1-2-phase excitation
Phase 1
Phase 2
I0, 1(A)
I0, 1(B)
Rev.1.0, Sep.19.2003, page 6 of 10
M54670P
Typical Characteristics (Absolute maximum ratings)
Safety operating range
1.0
A : Recommended
0.8
0.6
0.4
B : Schottky diodes should be externally
connected between output pin and power supply pin.
B
A
C : Schottky diodes should be externally connected between output pin
and power supply pin and between output pin and GND pin.
C
0.2
0
0
10
20
30 35 40
50
Ou
4.0
3.0
e air
50°C/W)
2 aluminum heat
W)
B
A
num heat
2.0
1.0
0
0
10 20 30 40 50 60 70 80
Ambient (°C)
Rev.1.0, Sep.19.2003, page 7 of 10
M54670P
Application Example (Stepping motor driver)
VR
1
2
CT
VCC 32
VR(B) 31
Ph(B) 30
VMM1(B) 29
O1(B) 28
27
VCC
Cf
VR(A)
Ph(A)
VMM1(A)
O1(A)
3
Phase A
Phase B
4
VMM
40µF/50V
0.01
µF
5
6
7
26
GND
GND
25
24
23
E(B) 22
O2(B) 21
VMM2(B) 20
) 19
RS
1
15 I1
16 C(A)
RC
RC
IN(A)
IN(B)
CC
CC
Stepper motor
(3.7mH / 6Ω / phase)
Rev.1.0, Sep.19.2003, page 8 of 10
M54670P
Precautions for use
(1) When the whole output current changes by a large margin (for example, when thermal shutdown operation causes
intermittent flow of output current), the supply voltage may undergo a change. Therefore, selection and wiring of
power supply should be conducted cautiously to avoid such a situation that the supply voltage exceeds the absolute
maximum ratings.
(2) When the supply voltage changes by a large margin, the operation of this IC may become unstable. In this case, the
change of supply voltage can be controlled by connecting a capacitor between Vcc pin and GND pin.
(3) Thermal shutdown function
The state of thermal shutdown operation may differ according to the way of wiring within a board. Therefore,
sufficient board evaluation should be conducted before use. When the board is changed, operation on the replacing
board should be evaluated.
The circuit board on which this IC is mounted is designed to realize low impedance between power supply and
output pin.
Therefore, it is desirable to taksafe measure such as fixing a fuse to avoid such a situation that the board is
damaged by a fire when ous internally short-circuited by excessively applied surge voltage by accident.
Rev.1.0, Sep.19.2003, page 9 of 10
M54670P
Package Dimensions
1 e
c
2 A
1 A
L
A
Rev.1.0, Sep.19.2003, page 10 of 10
Sales Strategic Planning Div. Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan
Keep safety first in your circuit designs!
1. Renesas Technology Corp. puts the minto making semiconductor products better and more reliable, but there is always the possibility that trouble
may occur with them. Trouble with sey lead to personal injury, fire or property damage.
Remember to give due consideraking your circuit designs, with appropriate measures such as (i) placement of substitutive, auxiliary
circuits, (ii) use of nonflammable against any malfunction or mishap.
Notes regarding these material
1. These materials are inteners in the selection of the Renesas Technology Corp. product best suited to the customer's
application; they do not operty rights, or any other rights, belonging to Renesas Technology Corp. or a third party.
2. Renesas Technology Ce, or infringement of any third-party's rights, originating in the use of any product data,
diagrams, charts, programcontained in these materials.
3. All information contained in ms, charts, programs and algorithms represents information on products at the time of
publication of these materials, ology Corp. without notice due to product improvements or other reasons. It is
therefore recommended that cusan authorized Renesas Technology Corp. product distributor for the latest product
information before purchasing a pr
The information described here macal errors.
Renesas Technology Corp. assumes ther loss rising from these inaccuracies or errors.
Please also pay attention to information various means, including the Renesas Technology Corp. Semiconductor
home page (http://www.renesas.com).
4. When using any or all of the information contta, diagrams, charts, programs, and algorithms, please be sure to
evaluate all information as a total system beforf the information and products. Renesas Technology Corp. assumes
no responsibility for any damage, liability or other herein.
5. Renesas Technology Corp. semiconductors are noe or system that is used under circumstances in which human life
is potentially at stake. Please contact Renesas Techology Corp. product distributor when considering the use of a
product contained herein for any specific purposes, sucvehicular, medical, aerospace, nuclear, or undersea repeater
use.
6. The prior written approval of Renesas Technology Corp. is in part these materials.
7. If these products or technologies are subject to the Japanese rted under a license from the Japanese government and
cannot be imported into a country other than the approved des
Any diversion or reexport contrary to the export control laws and stination is prohibited.
8. Please contact Renesas Technology Corp. for further details on thin.
RENESAS SALES OFFICES
p://www.renesas.com
Renesas Technology America, Inc.
450 Holger Way, San Jose, CA 95134-1368, U.S.A
Tel: <1> (408) 382-7500 Fax: <1> (408) 382-7501
Renesas Technology Europe Limited.
Dukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, United Kingdom
Tel: <44> (1628) 585 100, Fax: <44> (1628) 585 900
Renesas Technology Europe GmbH
Dornacher Str. 3, D-85622 Feldkirchen, Germany
Tel: <49> (89) 380 70 0, Fax: <49> (89) 929 30 11
Renesas Technology Hong Kong Ltd.
7/F., North Tower, World Finance Centre, Harbour City, Canton Road, Hong Kong
Tel: <852> 2265-6688, Fax: <852> 2375-6836
Renesas Technology Taiwan Co., Ltd.
FL 10, #99, Fu-Hsing N. Rd., Taipei, Taiwan
Tel: <886> (2) 2715-2888, Fax: <886> (2) 2713-2999
Renesas Technology (Shanghai) Co., Ltd.
26/F., Ruijin Building, No.205 Maoming Road (S), Shanghai 200020, China
Tel: <86> (21) 6472-1001, Fax: <86> (21) 6415-2952
Renesas Technology Singapore Pte. Ltd.
1, Harbour Front Avenue, #06-10, Keppel Bay Tower, Singapore 098632
Tel: <65> 6213-0200, Fax: <65> 6278-8001
© 2003. Renesas Technology Corp., All rights reserved. Printed in Japan.
Colophon 1.0
相关型号：
©2020 ICPDF网 联系我们和版权申明