Description
The L6228Q is a DMOS fully integrated stepper motor driver with non-dissipative overcurrent protection, realized in BCD multipower technology, which combines isolated DMOS power transistors with CMOS and bipolar circuits on the same chip.
Features
- Operating supply voltage from 8 to 52 V.
- 2.8 A output peak current (1.4 Ar. m. s. ).
- RDS(on) 0.73 Ω typ. value @ TJ = 25 °C.
- Operating frequency up to 100 kHz.
- Non dissipative overcurrent protection.
- Dual independent constant tOFF PWM current
controllers.
- Fast/slow decay mode selection.
- Fast decay quasi-synchronous rectification.
- Decoding logic for stepper motor full and half-
step drive.
- Cross conduction protection.
- Thermal shutdown.
- Und.
L6228Q_STMicroelectronics.pdf
