L9935 데이터 시트보기 (PDF) - STMicroelectronics
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L9935 Datasheet PDF : 29 Pages
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Functional description
L9935
Table 11. Half step mode control sequences and diagnosis response
SDI
SDO
Error cases and SDObit7, bit6
A B A1 A2 B1 B2 A1 A2 B1 B2 therm. therm.
(1) (1) (1) (1)
OOS S S S S S S S
PPHHHHHHHH
shut down
-
-
E
N
E
N
O
R
O
R
O
R
O
R
O
R
O
R
O
R
O
R
alarm
(reset
operating
TTTTTTTT
codes)
VS VS VS VS GND GND GND GND
bit 76543210 76543210 76 76 76 76 76 76 76 76 76 76 76 76543210
XX111111 previous code
11 11 11 11 11 11 11 11 11 11
XX011111 11111111
11 11 11 01 11 11 10 11 11 11
XX011111 11011111
11 11 11 01 11 11 10 11 11 11
XX011111 11011111
11 11 11 01 11 11 10 11 11 11
XX011011 11011111
11 11 11 01 11 01 10 11 10 11
XX111011 11011111
01 11 01 01 11 01 01 11 10 11
XX010011 11011011
11 11 01 11 11 01 11 10 10 11
XX010111 11111011
11 01 01 11 01 01 11 10 01 11
XX010010 11010011
11 11 01 11 01 11 11 10 11 10
XX110010 11010111
01 11 01 01 01 11 11 01 11 10
XX011010 11110010
11 11 11 01 01 11 10 11 11 10
XX011110 11011010
11 01 11 01 01 01 01 11 11 01
XX011011 11011110
11 11 01 01 11 01 10 11 10 11
XX111011 11011011
01 11 01 01 11 01 01 11 10 11
XX010011 11111011
11 11 01 11 11 01 11 10 10 11
XX010111 11010011
11 01 01 11 01 01 11 10 01 11
XX010010 11010111
11 11 01 11 01 11 11 10 11 10
XX110010 11010010
00 00111111
00 00111111
00 00111111
00 00111111
00 00111111
00 00111111
00 00111111
00 00111111
00 00111111
00 00111111
00 00111111
00 00111111
00 00111111
00 00111111
00 00111111
00 00111111
00 00111111
1. Motor resistance approximately 10 and VS = 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.
24/29
Doc ID 5198 Rev 10
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