參數(shù)資料
型號(hào)： L6460TR
廠商： STMICROELECTRONICS
元件分類： 運(yùn)動(dòng)控制電子
英文描述： STEPPER MOTOR CONTROLLER, PQFP64
封裝： 10 X 10 MM, 1 MM HEIGHT, ROHS COMPLIANT, TQFP-64
文件頁數(shù)： 75/139頁
文件大小： 3837K
代理商： L6460TR
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
Z
Primary regulator
001
Regulators
0
Z
0
Simple regulator
0
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
Simple regulator
1
0
Z
Bridge + VEXT (3)
1
0
1
Secondary regulators
1Z0
Slave
Bridge
1
Z
Primary regulator
1
Z
1
Regulators
1
0
Simple regulator
1
Z
Bridge + VEXT (3)
1
Secondary regulators.
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