STMicroelectronics FlexSPIN: SPI configurable stepper and DC multi motor driver evaluation board EVAL6460 EVAL6460 Scheda Tecnica
Codici prodotto
EVAL6460
Start-up configurations
L6460
42/139
Doc ID 17713 Rev 1
8.6.2
Primary regulator mode (KP)
In this configuration bridge 4 can be configured by firmware while bridge 3 is configured as
two separate synchronous switching regulators. The last regulator in the sequence
(V
two separate synchronous switching regulators. The last regulator in the sequence
(V
AUX2_SW
) is not considered a system regulator.
When in this mode the power-up sequence is:
1.
Auxiliary switching regulator1 (V
AUX1_SW
).
2. Main
switching regulator (V
SWmain
) together with main linear regulator (V
LINmain
).
3.
Auxiliary switching regulator2 (V
AUX2_SW
) (Not system regulator).
8.6.3 Regulators
mode
In this configuration bridge 4 can be configured by firmware while bridge 3 is configured as
two separate synchronous switching regulators, but the start up sequence is different
previous one.
two separate synchronous switching regulators, but the start up sequence is different
previous one.
When in this mode the power-up sequence is:
1.
Main switching regulator (V
SWmain
).
2.
Auxiliary switching regulator1 (V
AUX1_SW
)
3.
Auxiliary switching regulator2 (V
AUX2_SW
)
8.6.4 Simple
regulator mode (KT)
Also in this configuration bridge 4 can be configured by firmware while bridge 3 is configured
as two separate synchronous switching regulators. The last regulator in the sequence
(V
as two separate synchronous switching regulators. The last regulator in the sequence
(V
SWmain
) is not considered a system regulator.
When in this mode the power-up sequence is:
1.
Auxiliary switching regulator1 (V
AUX1_SW
).
2.
Auxiliary switching regulator2 (V
AUX2_SW
)
3.
Main linear regulator (V
LINmain
)
4. Main
switching regulator (V
SWmain
) (not system regulator).
8.6.5 Bridge
+
V
EXT
mode
In this configuration bridges 3 and 4 are not used as regulators and the regulator obtained
using the switching regulator controller (V
using the switching regulator controller (V
SWDRV
) is included in start-up.
When in this mode the power-up sequence is:
1.
Main switching regulator (V
SWmain
).
2. Switching
regulator
controller regulator (V
SWDRV
).
3.
Main linear regulator (V
LINmain
).