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參數資料
| 型號： | MC3479 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | Stepper Motor Driver(步進電機驅動器) |
| 中文描述： | 步進電機驅動器（步進電機驅動器） |
| 文件頁數： | 1/11頁 |
| 文件大小： | 182K |
| 代理商： | MC3479 |
Semiconductor Components Industries, LLC, 2006
March, 2006
Rev. 6
1
Publication Order Number:
MC3479/D
MC3479
Stepper Motor Driver
The MC3479 is designed to drive a two
phase stepper motor in the
bipolar mode. The circuit consists of four input sections, a logic
decoding/sequencing section, two driver
stages for the motor coils,
and an output to indicate the Phase A drive state.
Single Supply Operation: 7.2 to 16.5 V
350 mA/Coil Drive Capability
Clamp Diodes Provided for Back
EMF Suppression
Selectable CW/CCW and Full/Half Step Operation
Selectable High/Low Output Impedance (Half Step Mode)
TTL/CMOS Compatible Inputs
Input Hysteresis: 400 mV Minimum
Phase Logic Can Be Initialized to Phase A
Phase A Output Drive State Indication (Open
Collector)
These devices are available in Pb
free package(s). Specifications herein
apply to both standard and Pb
free devices. Please see our website at
www.onsemi.com for specific Pb
free orderable part numbers, or
contact your local ON Semiconductor sales office or representative.
CW/CCW
V
M
Gnd
Bias/Set
Phase A
Logic
Driver
OIC
Driver
F/H Step
Clk
Clock
Figure 1. Representative Block Diagram
L4
L3
V
D
L2
L1
OIC
Full/Half
Step
CW/CCW
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
Shipping
MC3479P
T
A
= 0
°
to +70
°
C
PDIP
25 Units / Rail
MC3479P
T
A
= 0
°
to +70
°
C
PDIP
2000 Units / Box
STEPPER MOTOR
DRIVER
PDIP
P SUFFIX
PLASTIC PACKAGE
CASE 648C
(Top View)
1
OIC
Gnd
Clk
Bias/Set
16
V
M
Gnd
PIN CONNECTIONS
9
8
4
7
6
5
3
2
L1
L2
Full/Half
Step
V
D
CW/CCW
Phase A
L4
L3
15
14
13
12
11
10
INPUT TRUTH TABLE
Input Low
Input High
CCW
Half Step
Low Z
CW
Full Step
Hi Z
Positive Edge Triggered
CW/CCW
Full/Half Step
OIC
Clk
http://onsemi.com
MARKING
DIAGRAM
MC3479P = Specific Device Code
A
= Assembly Location
WL
= Wafer Lot
YY
= Year
WW
= Work Week
MC3479P
AWLYYWW
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