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POWERSTEP01 データシート(PDF) 69 Page - STMicroelectronics

部品番号 POWERSTEP01
部品情報  System-in-package integrating microstepping controller and 10 A power MOSFETs
PDF  92 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

POWERSTEP01 データシート(HTML) 69 Page - STMicroelectronics

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DocID025022 Rev 5
69/92
powerSTEP01
Programming manual
92
When the device operates in voltage mode, the F_PWM_DEC bits set the multiplication
factor of PWM frequency generation:
In the following tables all available PWM frequencies are listed according to oscillator
frequency, F_PWM_INT and F_PWM_DEC values (CONFIG register OSC_SEL parameter
has to be correctly programmed).
Table 48. PWM frequency: multiplication factor
F_PWM_DEC [2 … 0]
Multiplication factor
00
0
0.625
00
1
0.75
01
0
0.875
01
1
1
10
0
1.25
10
1
1.5
11
0
1.75
11
1
2
Table 49. Available PWM frequencies [kHz]: 8 MHz oscillator frequency
F_PWM_DEC
F_PWM_INT
000
001
010
011
100
101
110
111
000
9.8
11.7
13.7
15.6
19.5
23.4
27.3
31.3
001
4.9
5.9
6.8
7.8
9.8
11.7
13.7
15.6
010
3.3
3.9
4.6
5.2
6.5
7.8
9.1
10.4
011
2.4
2.9
3.4
3.9
4.9
5.9
6.8
7.8
100
2.0
2.3
2.7
3.1
3.9
4.7
5.5
6.3
101
1.6
2.0
2.3
2.6
3.3
3.9
4.6
5.2
110
1.4
1.7
2.0
2.2
2.8
3.3
3.9
4.5
Table 50. Available PWM frequencies [kHz]: 16 MHz oscillator frequency
F_PWM_DEC
F_PWM_INT
000
001
010
011
100
101
110
111
000
19.5
23.4
27.3
31.3
39.1
46.9
54.7
62.5
001
9.8
11.7
13.7
15.6
19.5
23.4
27.3
31.3
010
6.5
7.8
9.1
10.4
13.0
15.6
18.2
20.8
011
4.9
5.9
6.8
7.8
9.8
11.7
13.7
15.6
100
3.9
4.7
5.5
6.3
7.8
9.4
10.9
12.5



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