STMicroelectronics STDRIVE101

The STDRIVE101 is a low voltage gate driver suitable for driving three-phase brushless motors. It is a single-chip with three half-bridge gate drivers for N-channel power MOSFETs. Each driver has a current capability of 600 mA (sink/source). It integrates a low drop linear regulator generating the supply voltage for both low-side and high-side gate drivers through bootstrap circuitry.

The device provides Under Voltage Lock Out (UVLO) on both the low-side and high-side sections, preventing the power switches from operating in low efficiency or dangerous conditions.

Key features

• VS operating voltage: 5 V to 75 V (VBOOT 89 V)
• Sink/source driving current capability: 600 mA
• 12 V LDO linear regulator (50 mA max.)
• VDS monitoring protection for each external MOSFET

Additional features

• Operating voltage from 5.5 to 75 V
• 600 mA sink/source current capability
• 3.3 V and 5 V control logic
• Two input strategies:
  • ENx/INx with adjustable deadtime generation
  • INHx/INLx with interlocking
• Matched propagation delay for all channels
• Very short propagation delay: 40 ns
• Integrated bootstrap diodes
• 12 V LDO linear regulator (50 mA max.)
• Embedded VDS monitor for each external MOSFET
• Overcurrent comparator
• UVLO and thermal shutdown protection
• Standby mode for low current consumption operation

Applications

• Home automation and appliances
• E-bikes
• Power tools
• Fans and pumps
• Industrial automation
• Textile machines
• Gaming and consoles

Available tools

• EVALSTDRIVE101 - STDRIVE101 demonstration board for three-phase brushless motors:
  • https://www.st.com/en/evaluation-tools/evalstdrive101.html