L6474 Datasheet | STMicroelectronics

Features - 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 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. 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. 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. 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. Doc ID022529 Rev 4 1/53 .st. Contents Contents 1 Block diagram - - - - - - - - - . 7 2 Electrical data - - -...