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L6460 데이터시트(PDF) 40 Page - STMicroelectronics

부품명 L6460
상세설명  SPI configurable stepper and DC multi motor driver
PDF  139 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6460 데이터시트(HTML) 40 Page - STMicroelectronics

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Start-up configurations
L6460
40/139
Doc ID 17713 Rev 1
8.2
Basic device mode
The basic device mode is selected by leaving the GPIO[0] pin floating. In this mode L6460
doesn’t use GPIO[3] and GPIO[4] as configuration pins, leaving them free for other uses.
When in this mode the regulators included in the start up sequence (except VSWmain) are
considered as system regulators and they start in the following sequence:
1.
Auxiliary switching regulator1 (VAUX1_SW).
2.
Auxiliary switching regulator2 (VAUX2_SW).
3.
Main linear regulator (VSWmain).
4.
Main switching regulator (VSWmain) (Not system regulator).
Table 9.
Start-up correspondence
Pin state(1)
1.
“X” means “don’t care”.
Major mode
Minor mode(2)
2.
The description of these modes is in the following Chapter 8.6
GPIO[0]
GPIO[3]
GPIO[4]
ZX
X
Basic
000
Single
Bridge
0
0
Z
Primary regulator
001
Regulators
0
Z
0
Simple regulator
0
Z
Z
Bridge + VEXT (3)
3.
VEXT is the regulator output voltage obtained using the switching regulator controller with external FET.
0
Z
1
Secondary regulators
010
Master
Bridge
0
1
Z
Primary regulator
011
Regulators
1
0
0
Simple regulator
1
0
Z
Bridge + VEXT (3)
1
0
1
Secondary regulators
1Z0
Slave
Bridge
1
Z
Z
Primary regulator
1
Z
1
Regulators
1
1
0
Simple regulator
1
1
Z
Bridge + VEXT (3)
1
1
1
Secondary regulators.



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