L6228N屬于集成電路（IC）的電機驅動器控制器。由意法半導體集團制造生產的L6228N電機驅動器，控制器產品屬于電機驅動器和控制器電源管理集成電路 (PMIC) 系列，可用于控制或操作從某電源施加到電機或相關機電執(zhí)行器的電源。所實現的具體功能和特性集根據預期負載和預期應用的特性有很大差異，范圍從用于有刷電機的簡單開環(huán)速度控制到基于步進電機的高級閉環(huán)運動控制。

DESCRIPTION

The L6228 is a DMOS Fully Integrated Stepper Motor Driver with non-dissipative Overcurrent Protection, realized in MultiPower-BCD 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 stepper motor including: a dual DMOS Full Bridge, the constant off time PWM Current Controller that performs the chopping regulation and the Phase Sequence Generator, that generates the stepping sequence.

■ OPERATING SUPPLY VOLTAGE FROM 8 TO 52V

■ 2.8A OUTPUT PEAK CURRENT (1.4A RMS)

■ RDS(ON) 0.73? TYP. VALUE @ Tj = 25°C

■ OPERATING FREQUENCY UP TO 100KHz

■ 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

■ UNDER VOLTAGE LOCKOUT

■ INTEGRATED FAST FREE WHEELING DIODES

TYPICAL APPLICATIONS

■ BIPOLAR STEPPER MOTOR