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L6229 Datasheet Dmos Driver

Manufacturer: STMicroelectronics

Overview: L6229 Datasheet DMOS driver for 3-phase brushless DC motor Power S036 SO24 (20 + 2 + 2) Product status link L6229 Product summary Order code Package Packing L6229D SO-24 Tube L6229DTR SO-24 Tape and reel L6229PD.

General Description

The L6229 is a DMOS fully integrated 3-phase motor driver with overcurrent protection.

Realized in BCD technology, the device bines isolated DMOS power transistors with CMOS and bipolar circuits on the same chip.

The device includes all the circuitry needed to drive a 3-phase BLDC motor including: a 3-phase DMOS bridge, a constant off time PWM current controller and the decoding logic for single ended Hall sensors that generates the required sequence for the power stage.

Key Features

  • Operating supply voltage from 8 to 52 V.
  • 2.8 A output peak current (1.4 A DC).
  • RDS(ON) 0.73 Ω typ. value at Tj = 25 °C.
  • Operating frequency up to 100 kHz.
  • Non-dissipative overcurrent detection and protection.
  • Diagnostic output.
  • Constant tOFF PWM current controller.
  • Slow decay synchronous rectification.
  • 60° and 120° Hall effect decoding logic.
  • Brake function.
  • Tachometer output for speed loop.

L6229 Distributor