The L6208 is a DMOS Fully Integrated Stepper Motor Driver with non-dissipative Overcurrent Protection. It is 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 L6208 operates from 8 to 52V, with an output peak current of 5.6A (2.8A RMS) and an RDS(ON) of 0.3Ω at Tj = 25°C. It also features an operating frequency of up to 100kHz, 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, and integrated fast free wheeling diodes. The L6208 is commonly used for bipolar stepper motors.
The L6208 is a DMOS fully integrated stepper motor driver designed for driving two-phase bipolar stepper motors. It combines isolated DMOS power transistors with CMOS and bipolar circuits on a single chip, utilizing MultiPower-BCD technology. The device includes a dual DMOS full bridge, a constant off time PWM current controller, and a phase sequence generator to handle stepping sequences.
Key features include non-dissipative overcurrent protection on high-side power MOSFETs, thermal shutdown, and under-voltage lockout. The driver supports both fast and slow decay modes, with fast decay enabling quasi-synchronous rectification. It is available in PowerDIP24, PowerSO36, and SO24 packages.
| Operating Supply Voltage | 8 to 52V |
|---|---|
| Output Peak Current | 5.6A |
| RDS(ON) Typ | 0.3Ω |
| Operating Frequency | Up to 100KHz |
| Supply Voltage Range | 8 to 52V |
| Operating Temperature Range | -40 to 150 °C |
| Turn-on Threshold | 7V |
| Turn-off Threshold | 6V |
| Thermal Shutdown Temperature | 165 °C |
| Output DMOS Transistors RDS(ON) High-Side | 0.34Ω @ 25°C |
The maximum operating frequency is up to 100KHz.
Yes, it includes decoding logic for stepper motor full and half step drive.
The typical output peak current is 5.6A.
The device activates thermal shutdown protection.