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L6228Q

Part Number	L6228Q
Manufacturer	STMicroelectronics
Description	DMOS driver
Published	Jan 12, 2009
Detailed Description	L6228Q DMOS driver for bipolar stepper motor Features ■ Operating supply voltage from 8 to 52 V ■ 2.8 A output peak cu...
Datasheet	L6228Q PDF File

Overview

L6228Q DMOS driver for bipolar stepper motor 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 ■ Undervoltage lockout ■ Integrated fast free wheeling diodes Applications ■ Bipolar stepper motor Figure 1.
Block diagram Datasheet − production data VFQFPN32 5 mm x 5 mm 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.
The device includes all the circuitry needed to drive a two-phase bipolar...

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