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L6235Q - DMOS driver

Description

The L6235Q is a DMOS fully integrated 3-phase motor driver with overcurrent protection.

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

Features

  • Operating supply voltage from 8 to 52 V.
  • 5.6 A output peak current.
  • RDS(on) 0.3 Ω typ. value @ TJ = 25 °C.
  • Operating frequency up to 100 kHz.
  • Non-dissipative overcurrent protection.
  • Diagnostic output.
  • Constant tOFF PWM current controller.
  • Slow decay synchronous rectification.
  • 60° and 120° Hall effect decoding logic.
  • Brake function.
  • Tacho output for speed loop.
  • Cross conduction protection.
  • Thermal shutdown.
  • Undervoltage lockou.

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Full PDF Text Transcription

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L6235Q DMOS driver for 3-phase brushless dc motor Features ■ Operating supply voltage from 8 to 52 V ■ 5.6 A output peak current ■ RDS(on) 0.3 Ω typ. value @ TJ = 25 °C ■ Operating frequency up to 100 kHz ■ Non-dissipative overcurrent protection ■ Diagnostic output ■ Constant tOFF PWM current controller ■ Slow decay synchronous rectification ■ 60° and 120° Hall effect decoding logic ■ Brake function ■ Tacho output for speed loop ■ Cross conduction protection ■ Thermal shutdown ■ Undervoltage lockout ■ Integrated fast freewheeling diodes Figure 1. Block diagram QFN-48 (7 x 7 mm) Description The L6235Q is a DMOS fully integrated 3-phase motor driver with overcurrent protection.
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