33991 Datasheet (Motorola Inc) - Gauge Driver Integrated Circuit

33991, Gauge Driver Integrated Circuit

Freescale Semiconductor Technical Data Gauge Driver Integrated Circuit This 33991 is a single packaged, Serial Peripheral Interface (SPI) controlled, dual stepper motor gauge driver Integrated Circuit (IC).

This monolithic IC consists of four dual output H-Bridge coil drivers and the associated control logic.

Each pair of H-Bridge drivers is used to automatically control the speed, direction and magnitude of current through the two coils of a two-phase instrumentation stepper motor, similar to a

33991 Features

* including: Features

* MMT-Licensed Two-Phase Stepper Motor Compatible

* Minimal Processor Overhead Required

* Fully Integrated Pointer Movement and Position State Machine with Air Core Movement Emulation

* 4096 Possible Steady State Pointer Positions

* 340° Ma