L6470 datasheet(52/70 Pages) STMICROELECTRONICS

No de pièce	L6470

Description	dSPIN fully integrated microstepping motor driver with motion engine and SPI

PDF	70 Pages

Scroll/Zoom	100%

Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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52 / 70 page

Programming manual

L6470

52/70

Doc ID16737 Rev 4

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

must be correctly programmed).

Table 29.

PWM frequency: multiplication factor

F_PWM_DEC [2..0]

Multiplication factor

0.625

0.75

0.875

1.25

1.5

1.75

Table 30.

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 31.

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

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