3-Phase Brushless DC Motor Controller 42V 20-Pin PowerSO T/R

The L6234 is a triple half bridge to drive a brushless DC motor.It is realized in BCDmultipower technology which combines isolated DMOS power transistors with CMOS and Bipolar circuits on the same chip.By using mixed technology it has been possible to optimize the logic circuitry and the power stage to achieve the best possible performance.The output DMOS transistors can sustain a very high current due to the fact that the DMOS structure is not affected by the second breakdown effect, the RMS maximum current is practically limited by the dissipation capability of the package.All the logic inputs are TTL, CMOS and µP compatible. Each channel is controlled by two separate logic input.L6234 is available in 20 pin PowerDIP package (16+2+2) and in PowerSO20.

Supply voltage from 7 to 52 V

5 A peak current

R_DSon0.3 O typ. value at 25 °C

Cross conduction protection

TTL compatible driver

Operating frequency up to 150 kHz

Thermal shutdown

Intrinsic fast free wheeling diodes

Input and enable function for each half bridge

10 V external reference available