STMicroelectronics L6474
The L6474 device, realized in analog mixed signal technology, integrates a dual low RDS(on) DMOS full bridge with all power switches equipped with an accurate on-chip current sensing circuitry suitable for non-dissipative current control and overcurrent protections. A very rich set of protections (thermal, low bus voltage, overcurrent) makes the L6474 device “bullet proof” as required by the most demanding motor control applications.| Part No. | L6474 |
|---|---|
| Datasheet | L6474 Download |
| Manufacturer |  STMicroelectronics |
| Description | Fully integrated microstepping motor driver |
| Buy | Stock & Price |
APPLICATIONS
● Bipolar stepper motor POWERSO36 HTSSOP28FEATURES
● Operating voltage: 8 - 45 V● 7.0 A output peak current (3.0 A r.m.s.)
● Low RDS(on) power MOSFETs
● Programmable power MOS slew rate
● Up to 1/16 microstepping
● Current control with adaptive decay
● Non-dissipative current sensing
● SPI interface
● Low quiescent and standby currents
● Programmable non-dissipative overcurrent protection on all power MOS
● Two-level overtemperature protection
DESCRIPTION
Thanks to a new current control, a 1/16 microstepping is achieved through an adaptive decay mode which outperforms traditional implementations. All data registers, including those used to set analogue values (i.e.: current control value, current protection trip point, deadtime, etc.) are sent through a standard 5 Mbit/s SPI. Order code L6474H L6474HTR L6474PD L6474PDTR Table 1. Device summary Package HTSSOP28 HTSSOP28 POWERSO36 POWERSO36 Packing Tube Tape and reel Tube Tape and reel March 2015 This is information on a product in full production.
