參數(shù)資料
型號(hào): M54646AP
廠商: Mitsubishi Electric Corporation
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: 2-PHASE STEPPER MOTOR DRIVER
中文描述: 二相步進(jìn)電機(jī)驅(qū)動(dòng)器
文件頁數(shù): 1/6頁
文件大?。?/td> 121K
代理商: M54646AP
2-PHASE STEPPER MOTOR DRIVER
M54646AP
MITSUBISHI <CONTROL / DRIVER IC>
PIN CONFIGURATION (TOP VIEW)
BLOCK DIAGRAM
Outline 28P4B
DESCRIPTION
The M54646AP is a semiconductor IC to drive bipolar stepper
motors by controlling winding current with reference to a
designated current level.
FEATURES
G
Wide driver voltage range (10 – 40V)
G
Wide output current control range (20 – 800mA)
G
Bipolar and constant current control
G
Built-in flywheel diode
G
Built-in thermal protection circuit
APPLICATION
Office automation equipment such as printers, FDDs, HDDs and
facsimiles
FUNCTION
M54646AP Integrated Circuit drives two-phase bipolar stepper
motors while controlling winding current: It controls winding current
direction by inputting phases (pins 14 and 15) and, at the same
time, controls winding current amperage with terminals V
R
(pins
and
).
Provided with control circuits that output two phases, this IC is
sufficient to drive a two-phase bipolar stepper motor.
2
27
20 21 22 23
GND
28
C
C
r
v
1
1
1
M
A2
25
M
B2
19
V
MM
2
18
O
t
O
s
1
1
16
T
2
24
E
6 7 8 9
GND
1
1
1
1
M
A1
4
M
B1
10
O
t
1
1
13
T
5
12
17
TSD
Comparator
input (2)
One-shot multi
time constant
t
OFF
= 0.69 R
T
C
T
Current sensor
Current
sensor
C
Comparator
input (1)
Mono-
stable
t
OFF
= 0.69 R
T
C
T
Current sensor
One-shot multi
time constant (1)
E
Current
sensor (1)
Mono-
stable
Power
supply (2)
V
CC2
Power
supply (1)
V
CC1
O
d
V
R2
27
P
h2
15
C
r
v
D
o
V
R1
2
P
h1
14
V
MM
1
3
O
s
1
4
5
3
2
6
7
8
9
10
12
13
14
11
M
C
1
V
R1
V
MM
1
M
A1
E
1
M
B1
V
MM
1
V
CC1
T
1
Ph1
GND
28
25
24
26
27
23
22
21
20
19
17
16
15
18
M
B2
V
MM
2
V
CC2
T
2
Ph2
GND
C
2
V
R2
V
MM
2
M
A2
E
2
Comparator input (1)
Comparator reference
voltage input (1)
Output stage
supply voltage (1)
Output terminal (1)
Current sensor (1)
Output terminal (1)
time constant
direction switch
One-shot multi
Power supply (1)
Output stage
supply voltage (1)
Output terminal (2)
direction switch
One-shot multi
Output current
Power supply (2)
Output stage
supply voltage (2)
Comparator input (2)
Comparator reference
voltage input (2)
Output stage
supply voltage (2)
Output terminal (2)
Current sensor (2)
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