参数资料
型号: A4979GLPTR-T
厂商: Allegro Microsystems Inc
文件页数: 21/44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
Microstepping Programmable Stepper Motor Driver
With Stall Detect and Short Circuit Protection
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
TBLLD
1
1
PTP
PT5
PT4
PT3
PT2
PT1
PT0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
Fault 0
Fault 1
FF
FF
TW1
TW1
TW0
TW0
UV
UV
ST
ST
OLB
OLB
OLA
OLA
BML
0
BMH
0
BPL
SA5
BPH
SA4
AML
SA3
AMH
SA2
APL
SA1
APH
SA0
Table Load Register
Fault Register 0
PTP Parity bit (odd parity)
PT(0:15)[5:0] Phase Table Value
FF
TW1
Fault register flag
Temperature diagnostic
Table Load Register Mapping
Step Angle Number
Phase A Phase B
0% 0 32 16
PT(0) 1 31 33 63 15 17 47
PT(1) 2 30 34 62 14 18 46
48
49
50
TW0
UV
ST
OLB
OLA
BML
Temperature diagnostic
Undervoltage on VREG or VBB detected
Stall detected
Open load detected on phase B
Open load detected on phase A
Overcurrent detected on BM output low side
PT(2)
PT(3)
PT(4)
PT(5)
PT(6)
PT(7)
PT(8)
PT(9)
PT(10)
PT(11)
PT(12)
3
4
5
6
7
8
9
10
11
12
13
29
28
27
26
25
24
23
22
21
20
19
35
36
37
38
39
40
41
42
43
44
45
61
60
59
58
57
56
55
54
53
52
51
13
12
11
10
9
8
7
6
5
4
3
19
20
21
22
23
24
25
26
27
28
29
45
44
43
42
41
40
39
38
37
36
35
51
52
53
54
55
56
57
58
59
60
61
BMH
BPL
BPH
AML
AMH
APL
APH
Overcurrent detected on BM output high side
Overcurrent detected on BP output low side
Overcurrent detected on BP output high side
Overcurrent detected on AM output low side
Overcurrent detected on AM output high side
Overcurrent detected on AP output low side
Overcurrent detected on AP output high side
PT(13)
PT(14)
PT(15)
14
15
18
17
16
46
47
50
49
48
2
1
0
30
31
34
33
32
62
63
Fault Register 1
FF Fault register flag
TW1
TW0
UV
ST
OLB
OLA
Temperature diagnostic
Temperature diagnostic
Undervoltage on VREG or VBB detected
Stall detected
Open load detected on phase B
Open load detected on phase A
SA[0:5] Step Angle Number read back
OLA
Open load detected on phase A
TW[0:1] Temperature diagnostic
TW1
0
0
1
1
TW0
0
1
0
1
Thermal Indicator
No Fault
Cold Warning
Hot Warning
Overtemperature Shutdown
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
21
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