DESCRIPTION
The L6229 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.
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 Controller and the decoding logic for single ended hall sensors that generates the required sequence for the power stage.
FEATURES
■ OPERATING SUPPLY VOLTAGE FROM 8 TO 52V
■ 2.8A OUTPUT PEAK CURRENT (1.4A DC)
■ RDS(ON) 0.73Ω 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