Triple half-bridge gate driver

Quantity $ per Unit Savings
1 - 9$2.770%
10 - 24$2.5010%
25 - 99$2.3615%
100 - 249$2.0127%
250 - 499$1.8932%
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Parameter NameParameter Value
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius125.0
Packing TypeTape And Reel
RoHs compliantEcopack2
Package NameQFN-24L

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 a 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.

The control logic integrated into the STDRIVE101 allows two input strategies (high-side and low-side or enable and PWM driving signals). The driving method is selected according to DT/MODE pin. In both cases, prevention from cross conduction is ensured by interlocking or internally generated deadtime.

The STDRIVE101 also features a VDS monitoring protection for each external MOSFET, thermal shutdown and can be put in the standby mode to reduce the power consumption.

The device is available in a VFQFPN 4x4 24 leads package option.

Key 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