L6227

与PWM电流控制器双DMOS全桥驱动器 DMOS DUAL FULL BRIDGE DRIVER WITH PWM CURRENT CONTROLLER

DESCRIPTION

The is a DMOS Dual Full Bridge designed for motor control applications, realized in MultiPower BCD technology, which combines isolated DMOS Power Transistors with CMOS and bipolar circuits on the same chip. The device also includes two inde pendent constant off time PWM Current Controllers that performs the chopping regulation. Available in Power DIP24 20+2+2, PowerSO36 and SO24 20+2+2 packages, the L6227 features a non-dissipative overcurrent protection on the high side Power MOSFETs and thermal shutdown.

■OPERATING SUPPLY VOLTAGE FROM 8 TO 52V

■2.8A OUTPUT PEAK CURRENT 1.4A DC

■RDSON0.73ΩTYP. VALUE @ Tj= 25 °C

■OPERATING FREQUENCY UP TO 100KHz

■NON DISSIPATIVE OVERCURRENT PROTECTION

■DUAL INDEPENDENT CONSTANT tOFF PWM CURRENT CONTROLLERS

■SLOW DECAY SYNCHRONOUS RECTIFICATION

■CROSS CONDUCTION PROTECTION

■THERMAL SHUTDOWN

■UNDER VOLTAGE LOCKOUT

■INTEGRATED FAST FREE WHEELING DIODES

TYPICAL APPLICATIONS

■BIPOLAR STEPPER MOTOR

■DUAL DC MOTOR