参数资料
型号: A4980KLPTR-T
厂商: Allegro Microsystems Inc
文件页数: 19/44页
文件大小: 0K
描述: IC STEPPER DVR PROGR 28-TSSOP
标准包装: 1
应用: 步进电机驱动器
输出数: 1
电流 - 输出: ±1.4A
电压 - 负载: 0 V ~ 50 V
电源电压: 3 V ~ 5.5 V
工作温度: -40°C ~ 150°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: 620-1461-6
A4980
Automotive, Programmable Stepper Driver
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
CONFIG 0
0
0
SYR
MS1
MS0
MXI1
MXI0
PFD2
PFD1
PFD0
TBK1
TBK0
TOF2
FRQ2
TOF1
FRQ1
TOF0
FRQ0
PWM
1
0
0
1
1
1
0
0
0
1
1
1
0
0
Configuration Register 0
SYR
SYR
0
Synchronous rectification
Synchronous Rectification
Diode recirculation
Default
TOF[2..0] Off time (only valid when PWM bit = 0)
Replaces FRQ bits
Assumes 4-MHz clock
1
Synchronous
D
TOF2
TOF1
TOF0
Off Time
Default
MS[1..0] Microstep mode for external STEP input control
0
0
0
0
0
1
20 μ s
24 μ s
MXI1
0
0
1
1
MXI0
0
1
0
1
Microstep Mode
Full Step
Half Step
Quarter Step
Sixteenth Step
Default
D
0
0
1
1
1
1
1
0
0
1
0
1
0
1
0
28 μ s
32 μ s
36 μ s
40 μ s
44 μ s
D
MXI[1..0] Max p hase  current as a percentage of I SMAX
1
1
1
48 μ s
MXI1
MXI0
Maximum Current
Default
FRQ[2..0] Frequency (only valid when PWM bit = 1)
0
0
1
1
0
1
0
1
25%
50%
75%
100%
D
FRQ2
0
Replace TOF bits
Assumes 4-MHz clock
FRQ1 FRQ0 Period / Frequency
0 0 24 μ s / 41.7 kHz
Default
PFD[2..0] Fast decay time for mixed decay
Assumes 4-MHz clock
PFD2 PFD1 PFD0 Fast Decay Time
0 0 0 2 μ s
0 0 1 3 μ s
0 1 0 4 μ s
0 1 1 6 μ s
Default
0
0
0
1
1
1
1
0
1
1
0
0
1
1
1
0
1
0
1
0
1
32 μ s / 31.3 kHz
40 μ s / 25.0 kHz
46 μ s / 21.7 kHz
52 μ s / 19.2 kHz
56 μ s / 17.9 kHz
60 μ s / 16.7 kHz
64 μ s / 15.6 kHz
D
1
0
0
8 μ s
D
PWM
PWM configuration
1
1
1
0
1
1
1
0
1
10 μ s
14 μ s
20 μ s
PWM
0
1
MODE
Fixed off-time
Fixed frequency
Default
D
TBK[1..0] Blank Time
Assumes 4-MHz clock
TBK1
0
0
1
1
TBK0
0
1
0
1
Blank Time
1 μ s
1.5 μ s
2.5 μ s
3.5 μ s
Default
D
Allegro MicroSystems, LLC
115 Northeast Cutoff
19
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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