参数资料
型号: A4979GLPTR-T
厂商: Allegro Microsystems Inc
文件页数: 8/44页
文件大小: 0K
描述: IC MOTOR DRVR MICRO STEP 28TSSOP
特色产品: A4979 Series
标准包装: 1
应用: 直流电机驱动器,PWM 电机驱动器,步进电机驱动器
评估套件: 可供
输出数: 1
电流 - 输出: 1.5A
电压 - 负载: 7 V ~ 50 V
电源电压: 3 V ~ 5.5 V
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 28-SOIC(0.173",4.40mm 宽)裸露焊盘
供应商设备封装: 28-TSSOP 裸露焊盘
包装: 标准包装
其它名称: 620-1463-6
A4979
STEP
Microstepping Programmable Stepper Motor Driver
With Stall Detect and Short Circuit Protection
No rise when
D15=1 and D14=0
STRn
L
M
C
A
B
D
E
SCK
J
K
SDI
X
D 1 5
X
D 1 4
X
D 0
X
F
I
G
SDO
Z
D 1 5 '
D 1 4 '
D 0 '
Z
H
Figure 1. Serial Interface Timing Diagram
Key
A
B
C
D
E
F
G
Characteristic
Clock High Time
Clock Low Time
Strobe Lead Time
Strobe Lag Time
Strobe High Time
Data Out Enable Time
Data Out Disable Time
Key
H
I
J
K
L
M
X
Z
Characteristic
Data Out Valid Time from Clock Falling
Data Out Hold Time from Clock Falling
Data In Set-Up Time to Clock Rising
Data In Hold Time From Clock Rising
STEP Rising to STRn Rising Setup Time
STEP Rising from STRn Rising Hold Time
“Don’t care”
High-impedance (tristate)
t STPH
t STPL
STEP
DIR, MS0, MS1
RESETn
t EN
ENABLE*
* ENABLE(Pin) OR RUN[EN] bit
Figure 2. Control Input Interface Timing Diagram
t SU
t H
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
8
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