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DESCRIPTION

The L6235 is a DMOS Fully Integrated Three-Phase Motor Driver with Overcurrent Protection. Realized in MultiPower-BCD technology, the device combines isolated DMOS Power Transistors with CMOS and bipolar circuits on the same chip polar circuits on the same chip The device includes all the circuitry needed to drive a three-phase BLDC motor including: a three-phase DMOS Bridge, a constant off time PWM Current Con troller and the decoding logic for single ended hall sensors that generates the required sequence for the power stage.

■ OPERATING SUPPLY VOLTAGE FROM 8 TO 52V

■ 5.6A OUTPUT PEAK CURRENT (2.8A DC)

■ RDS(ON) 0.3? TYP. VALUE @ Tj = 25 °C

■ OPERATING FREQUENCY UP TO 100KHz

■ NON DISSIPATIVE OVERCURRENT DETECTION AND PROTECTION

■ DIAGNOSTIC OUTPUT

■ CONSTANT tOFF PWM CURRENT CONTROLLER

■ SLOW DECAY SYNCHR. RECTIFICATION

■ 60° & 120° HALL EFFECT DECODING LOGIC

■ BRAKE FUNCTION

■ TACHO OUTPUT FOR SPEED LOOP

■ CROSS CONDUCTION PROTECTION

■ THERMAL SHUTDOWN

■ UNDERVOLTAGE LOCKOUT

■ INTEGRATED FAST FREEWEELING DIODES