L6472H Description
The advanced fully integrated L6472 device, achieved in analog mixed-signal technology, is appropriate for driving two-phase bipolar stepper motors with microstepping. With all of the power switches fitted with precise on-chip current sensing circuitry suited for non-dissipative current regulation and overcurrent protection, it combines a dual low RDS(on) DMOS complete bridge. A novel current control allows for an adaptive decay mode that outperforms conventional implementations to reach a 1/16 micro stepping. The user-defined motion profiles with acceleration, deceleration, speed, or goal location can be generated by the digital control core and readily programmed using a special register set.
L6472H Features
Operating voltage: 8 - 45 V
7.0 A output peak current (3.0 A r.m.s.)
Low RDS(on) power MOSFETs
Programmable speed profile
Programmable power MOSFET slew rate
Up to 1/16 microstepping
Predictive current control with adaptive decay
Non dissipative current sensing
SPI interface
Low quiescent and standby currents
Programmable non dissipative overcurrent protection on all power MOSFETs
Two levels of overtemperature protection
L6472H Applications
Power Management
Consumer Electronics
Portable Devices
Industrial
