L6460 STMicroelectronics, L6460 Datasheet - Page 65

• Manufacturer Part Number: L6460
• Description: MOSFET & Power Driver ICs SPI Config Stepper DC Multi Motor DRV
• Manufacturer: STMicroelectronics
• Type: Full-Bridge Driverr

Specifications of L6460

• Product: Half-Bridge Drivers
• Rise Time: 0.4 us
• Fall Time: 0.4 us
• Supply Voltage (max): 38 V
• Supply Voltage (min): 13 V
• Supply Current: 11 mA
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Number Of Drivers: 4
• Output Current: 10 mA
• Output Voltage: 30 V
• Package / Case: TQFP-64
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

L6460
Figure 18. Bipolar stepper configuration
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
DC3
Ref1
Ref2
VRefA
SelStepRef
- Control Logic
- Toff generation
- DAC reference
selection
SENSE
V
STEPREF
DC3
PH-
_PH-
Bridge Driver
Bridge Driver
V
Doc ID 17713 Rev 1
supply
Supply
Sense
PH+
DC3
VRefA
VRefB
_PH+
Table
StepperDACPhA
StepperDACPhB
21.
PH-
Stepper
Motor
Supply
Sense
VRefB
PH+
DC4
DC4
DC4
Power bridges
PH-
PH+
SENSE
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