參數(shù)資料
型號(hào): SAA1042
廠商: Motorola, Inc.
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: STEPPER MOTOR DRIVER
中文描述: 步進(jìn)電機(jī)驅(qū)動(dòng)器
文件頁(yè)數(shù): 4/6頁(yè)
文件大小: 100K
代理商: SAA1042
SAA1042
4
MOTOROLA ANALOG IC DEVICE DATA
Figure 2. Bias Resistor RB
versus Motor Current
Figure 3. Drive Stage Power Dissipation
5.0
4.0
3.0
MOTOR CURRENT/COIL (mA)
MOTOR CURRENT/COIL (mA)
0
0
500
1.0
2.0
0.7
0.5
0.3
0.2
0.1
400
300
200
100
70
50
30
20
20
30
40 50 60
80 100
200
300 400 500
10
20
30
50
70
100
200
300
500
D
RB
VM = 24 V
VM = 12 V
VM = 6.0 V
VM = 24 V
VM = 12 V
VM = 6.0 V
Figure 4. Clamp Diode Forward Current
versus Forward Voltage
Figure 5. Power Dissipation versus
Logic Supply Voltage
VF , FORWARD VOLTAGE (V)
0
0
VCC , SUPPLY VOLTAGE (V)
500
0
5.0
4.0
3.0
1.0
10
20
2.0
400
300
200
100
25
20
15
10
5.0
500
300
200
100
70
50
30
P
F
D
Figure 6. Timing Diagram
Don’t Care
Full Step Motor Drive Mode. Full/Half Step Input = 0
High Output Impedance
Clock
Set
CW/CCW
L1
L2
L3
L4
Clock
Set
CW/CCW
L1
L2
L3
L4
Half Step Motor Drive Mode. Full/Half Step Input = 1
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