STMicroelectronics Stepper motor driver mounting the L6474 EVAL6474H EVAL6474H Data Sheet
Product codes
EVAL6474H
Board description
EVAL6474H
2/10
Doc ID 022766 Rev 1
1 Board
description
Figure 1.
Jumper and connector location
Table 1.
EVAL6474H specifications
Parameter
Value
Supply voltage (VS)
8 to 45 V
Maximum output current (each phase)
3 A
rms
Logic supply voltage (VREG)
Externally supplied: 3.3 V internally supplied: 3 V
typical
typical
Logic interface voltage (VDD)
Externally supplied: 3.3 V or 5 V internally
supplied: VREG
supplied: VREG
Low level logic input voltage
0 V
High level logic input voltage
VDD
(1)
1.
All logic inputs are 5 V tolerant.
Operating temperature
-25 to +125 °C
L6474H thermal resistance junction-to-ambient
21 °C/W typical
Phase A connector
Power supply connector
(8 V - 45 V)
Master SPI
connector
SYNC output
FLAG LED
(Red)
ADCIN input
regulation
JP1: VDD supply from
master SPI connector
master SPI connector
JP2:
JP4: STCK to slave SPI connector
JP5: DIR to slave SPI connector
JP5: DIR to slave SPI connector
VDD to VREG
connection
OSCIN/OSCOUT
connector
connector
JP3: Daisy chain
termination
termination
Phase B connector
Slave SPI
connector
connector
Application reference
area
AM10269V1