L9935 datasheet(24/29 Pages) STMICROELECTRONICS | Two-phase stepper motor driver

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L9935 数据表(PDF) 24 Page - STMicroelectronics

部件名	L9935

功能描述	Two-phase stepper motor driver

PDF	29 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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L9935 数据表(HTML) 24 Page - STMicroelectronics

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Functional description

L9935

24/29

Doc ID 5198 Rev 10

Table 11.

Half step mode control sequences and diagnosis response

SDI

SDO

Error cases and SDObit7, bit6

--

A

O

P

E

N

B

O

P

E

N

A1

S

H

O

R

T

VS

A2

S

H

O

R

T

VS

B1

S

H

O

R

T

VS

B2

S

H

O

R

T

VS

A1

(1)

S

H

O

R

T

GND

A2

(1)

S

H

O

R

T

GND

B1

(1)

S

H

O

R

T

GND

B2

(1)

S

H

O

R

T

GND

therm.

therm.

alarm

shut down

(reset

operating

codes)

bit

76543210 76543210

76

76

76

76

76

76

76

76

76

76

76

76543210

XX111111

XX011111

XX011111

XX011111

XX011011

XX111011

XX010011

XX010111

XX010010

XX110010

XX011010

XX011110

XX011011

XX111011

XX010011

XX010111

XX010010

XX110010

previous code

11111111

11011111

11011111

11011111

11011111

11011011

11111011

11010011

11010111

11110010

11011010

11011110

11011011

11111011

11010011

11010111

11010010

11

11

11

11

11

01

11

11

11

01

11

11

11

01

11

11

11

11

11

11

11

11

11

11

01

11

11

11

01

11

11

11

01

11

11

11

11

11

11

01

01

01

01

01

11

11

01

01

01

01

01

11

01

01

01

01

01

11

11

11

01

01

01

01

01

11

11

11

11

11

11

11

11

11

11

01

01

01

01

01

11

11

11

01

01

11

11

11

11

01

01

01

01

11

11

11

01

01

01

01

01

11

11

10

10

10

10

01

11

11

11

11

10

01

10

01

11

11

11

11

11

11

11

11

11

10

10

10

01

11

11

11

11

10

10

10

11

11

11

11

10

10

10

01

11

11

11

11

10

10

10

01

11

11

11

11

11

11

11

11

11

10

10

10

01

11

11

11

11

10

00

00

00

00

00

00

00

00

00

00

00

00

00

00

00

00

00

00111111

00111111

00111111

00111111

00111111

00111111

00111111

00111111

00111111

00111111

00111111

00111111

00111111

00111111

00111111

00111111

00111111

1.

Motor resistance approximately 10

 and V

S = 12V. So a short to ground only is detected on one branch of the bridge.

Lower resistivity of the motor may lead to detection of short to ground on both branches of the bridge leading to code 10 on

all steps.

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