For further information contact your local STMicroelectronics sales office.
March 2015 DocID022606 Rev 3 1/11
EVAL6470PD
Fully integrated stepper motor driver mounting the L6470 in a high
power PowerSo package
Data brief
Features
Voltage range from 8 V to 45 V
Phase current up to 3 A
r.m.s.
Dual SPI connector (daisy chain configuration
suitable)
SW input
FLAG and BUSY LED indicators
Adjustable supply voltage compensation
High thermal performance (R
thj-a
12 °C/W
typical)
Suitable for use in combination with
the
STEVAL-PCC009V2
Description
The EVAL6470PD demonstration board is a fully
integrated microstepping motor driver. In
combination with the STEVAL-PCC009V2
communication board and SPIN evaluation
software, the board allows the engineer to
investigate all the features of the L6470 device. In
particular, the board can be used to check the
voltage mode driving and to regulate the L6470
parameters in order to fit the application
requirements. The 4-layer layout and the
PowerSO package allow the top thermal
performance to be obtained. The EVAL6470PD
supports the daisy chain configuration making it
suitable for the evaluation of the L6470 in multi
motor applications.
AM11329v1
www.st.com
Board description EVAL6470PD
2/11 DocID022606 Rev 3
Board description
Figure 1. Jumper and connector location
Table 1. EVAL6470PD specifications
Parameter Value
Supply voltage (VS) 8 to 45 V
Maximum output current (each phase) 3 A
r.m.s.
Logic supply voltage (VREG)
Externally supplied: 3.3 V internally supplied:
3 V typical
Logic interface voltage (VDD)
Externally supplied: 3.3 V or 5 V internally
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
L6470PD thermal resistance junction to ambient 12 °C/W typical
AM11330v1