STMicroelectronics FlexSPIN: SPI configurable stepper and DC multi motor driver evaluation board EVAL6460 EVAL6460 데이터 시트
제품 코드
EVAL6460
L6460’s main features
L6460
14/139
Doc ID 17713 Rev 1
2
L6460’s main features
L6460 includes the following circuits:
●
Four widely configurable full bridges:
–
Bridges 1 and 2:
–
Diagonal R
DSon
: 0.6
Ω typ.
–
Max operative current = 2.5 A.
–
Bridges 3 and 4:
–
Diagonal R
DSon
: 0.85
Ω typ.
–
Max operative current = 1.5 A.
●
Possible configurations for each bridge are the following:
–
Bridge 1:
–
DC motor driver.
–
Super DC (bridge 1 and 2 paralleled form superbridge1).
–
2 independent half bridges.
–
1 super half bridge (bridge 1 side A and bridge 1 side B paralleled form
superhalfbridge1).
–
2 independent switches (high or low side).
–
1 super switch (high or low side).
–
Bridge 2 has the same configurations of bridge 1.
–
Bridge 3 has the same configurations of bridge 1 (bridge 3 and 4 paralleled form
superbridge2) plus the following:
superbridge2) plus the following:
–
½ stepper motor driver.
–
2 buck regulators (V
AUX1_SW
, V
AUX2_SW
).
–
1 Super buck regulator (V
AUX1//2_SW
).
–
Bridge 4 has the same configurations of bridge 1 plus the following:
–
½ stepper motor driver.
–
1 super buck regulator (V
AUX3_SW
).
–
Battery charger.
●
One buck type switching regulator (V
SWmain
) with:
–
Output regulated voltage range: 1-5 Volts.
–
Output load current: 3.0 A.
–
Internal output power DMOS.
–
Internal soft start sequence.
–
Internal PWM generation.
–
Switching frequency: ~250
kHz.
–
Pulse skipping strategy control.
●
One switching regulator controller (V
SWDRV
) with:
–
Output regulated voltage range: 1-30 Volts.
–
Selectable current limitation.
–
Internal PWM generation.
–
Pulse skipping strategy control.
●
One linear regulator (V
LINmain
) that can be used to generate low current/low ripple