L6229DTR Datasheet PDF - ST Microelectronics

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

●Realized in 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 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.

●Available in PowerDIP24 (20 + 2 + 2), PowerSO36 and SO24 (20 + 2 + 2) packages, the L6229 features a non-dissipative overcurrent protection on the high-side Power MOSFETs and thermal shutdown.

●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 synchr. rectification

● 60° and 120° hall effect decoding logic

● Brake function

● Tachometer output for speed loop

● Cross conduction protection

● Thermal shutdown

● Undervoltage lockout

● Integrated fast freewheeling diodes