L6460 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'L6460' PDF : 139 Pages View PDF
L6460
Figure 18. Bipolar stepper configuration
Power bridges
DC3SENSE
VRefA
DC3_PH- Vsupply DC3_PH+
Supply
Stepper
Motor
Supply
DC4 PH-
PH-
PH+
Sense
- Control Logic
- Toff generation
- DAC reference
selection
Bridge Driver
Bridge Driver
PH-
PH+
Sense
DC4 PH+
Ref1
Ref2
V STEPREF
SelStepRef
VRefA
VRefB
StepperDACPhA
StepperDACPhB
VRefB
DC4SENSE
Using the StepCtrlMode[2:0] bits in StepCfg1 register, L6460 can be programmed to
internally generate the stepping levels. In these cases and depending on the StepFromGpio
bit in the StpCfg1 register the Stepper driver will move to next step each time the StepCmd
bit is set at logic level “1” or at each pulse transition longer than ~1µs externally applied on
GPIO12 (StepReq signal), according to Table 21.
Doc ID 17713 Rev 1
65/139
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