october 2011 doc id 022372 rev 1 1/5 5 STEVAL-IFN004V1 bldc six-step motor driver ba sed on the l6230 and stm8s105 features input range: 8 v up to 48 v (up to 35 w) stmicroelectronics? stm8s105 8-bit microcontroller dmos fully integrated three-phase motor driver l6230 in a qfn package four-layer board best miniaturization vs. thermal performance ratio sensorless and hall-effect sensor operation current sensing mode: single-shunt resistor debug connector spi interface rohs compliant description the STEVAL-IFN004V1 demonstration board is based on stmicroelectronics? stm8s105 microcontroller and the dmos fully integrated three-phase motor driver l6230 implementing 6-step scalar control of a bldc motor. the board is designed as an evaluation environment for motor control applications in the range of 8 v - 48 v of dc bus voltage and up to 35 w, exploiting the embedded features of the stm8s105. this microcontroller includes internal 2 kb sram and 128 kb flash, and swd debugging. the l6230 dmos driver features 2.8 a output peak current, non-dissipative overcurrent detection/protection, cross- conduction protection, internal comparator used for cycle-by-cycle current limitation/regulation, thermal shutdown and undervoltage lockout. the STEVAL-IFN004V1 is provided with a specific bemf detection network with dynamic method selection. offering dedicated hardware evaluation features, the STEVAL-IFN004V1 board is designed to help developers evaluate the device and develop their own applications. the STEVAL-IFN004V1 can be used together with the stm8sxxx three-phase bldc motor control software library and constitutes a cost-effective complete motor control evaluation and development platform. www.st.com
circuit schematic STEVAL-IFN004V1 2/5 doc id 022372 rev 1 1 circuit schematic figure 1. schematic (part 1) ! - v % 3 2 / h m % 3 , n ( ! p p l i c a t i o n r e f e r e n c e $ ) ! ' % . ) . ) . ) . % . % . % . / 5 4 / 5 4 / 5 4 / 5 4 " % - & |