PBL3717-2 Datasheet (Ericsson) - Stepper Motor Drive Circuit

PBL3717-2, Stepper Motor Drive Circuit

PBL 3717/2 is a bipolar monolithic circuit intended to control and drive the current in one winding of a stepper motor.

The circuit consists of a LS-TTL compatible logic input stage, a current sensor, a monostable multivibrator and a high power H-bridge output stage with built-in protection diodes.

PBL3717-2 Features

* Half-step and full-step modes.

* Switched mode bipolar constant current drive.

* Wide range of current control 5 - 1200 mA.

* Wide voltage range 10 - 50 V.

* Designed for unstabilized motor supply voltage.

* Current levels can be selected in steps or