L6208PD

Product Summary

The L6208PD 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. The applications of the L6208PD include bipolar stepper motor.

Parametrics

L6208PD absolute maximum ratings: (1)Supply Voltage, VSA= VSB= VS, VS: 60V; (2)Differential Voltage between VSA, OUT1A, OUT2A, SENSEA and VSB, OUT1B, OUT2B, SENSEB, VSA= VSB= VS= 60V; VSENSEA= VSENSEB= GND, VOD: 60V; (3)Bootstrap Peak Voltage, VSA= VSB= VS, VBOOT: VS + 10V; (4)Input and Enable Voltage Range, VIN,VEN: -0.3 to +7V; (5)Voltage range at pins VREFA and VREFB, VREFA, VREFB: -0.3 to +7V; (6)Voltage range at pins RCA and RCB, VRCA, VRCB: -0.3 to +7V; (7)Voltage range at pins SENSEA and SENSEB, VSENSEA, VSENSEB: -1 to +4V; (8)Pulsed supply current, (for each VS pin), internally limited by the overcurrent protection, VSA= VSB= VS; tPULSE < 1ms, IS(peak): 7.1A; (9)RMS supply current: (for each VS pin), VSA= VSB= VS, IS: 2.8A; (10)Storage and operating temperature range, Tstg, TOP: -40 to 150℃.

Features

L6208PD features: (1)Operating supply voltage from 8 to 52V; (2)5.6A output peak current (2.8A RMS); (3)RDS(ON) 0.3W TYP. value @ Tj = 25℃; (4)Operating frequency up to 100KHz; (5)Non dissipative overcurrent protection; (6)Dual independent constant toff pwm current controllers; (7)Fast/slow decay mode selection; (8)Fast decay quasi-synchronous rectification; (9)Decoding logic for stepper motor full and half step drive; (10)Cross conduction protection; (11)Thermal shutdown; (12)Under voltage lockout; (13)Integrated fast free wheeling diodes.

Diagrams