PBL3771-1 Datasheet (Ericsson) - Precision Stepper Motor Driver

PBL3771-1, Precision Stepper Motor Driver

The PBL 3771/1 is a switch-mode, constant-current driver IC (chopper) with two channels, one for each winding of a two-phase stepper motor.

The circuit is especially developed for use in microstepping applications in conjunction with the matching dual DAC (Digital-to-Analog Converter) PBM 3960.

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PBL3771-1 Features

* Dual chopper driver in a single package.

* 650 mA output current per channel.

* Close matching between channels for high microstepping accuracy.

* Selectable slow/fast current decay for improved high-speed microstepping.

* Improved low-level linearity.