L6460 STMicroelectronics, L6460 Datasheet - Page 64

• 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

Power bridges
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side power MOS for the whole off time. In fast decay mode the current is recirculated
through the high and low side power MOS opposite respect to those forcing current to
increase. Mixed decay mode is a selectable mix of the previous two modes (fast decay
followed by slow decay) and allows the user to find the best trade off between load current
ripple and fast current levels transition. Additionally, by setting the
SeqMixedOnlyInDecreasingPh bit in the StpCfg1 register, the user can choose to apply the
fast decay percentage in mixed mode always or only when the current is decreasing (i.e
from 90° to 180° and from 270° to 360° of the sinusoidal wave).
By using SPI interface the user can choose:
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Control type (external firmware control, half step, normal drive, wave drive, micro-step).
Up to 16 current levels (quasi-sinusoidal increments) for each bridge.
Current direction.
Decay mode.
Blanking time.
Off time (32 values from 2µs to 64µs).
Percentage of fast decay respect to toff (when in mixed decay mode).
Doc ID 17713 Rev 1
L6460