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March 2012 Doc ID 022980 Rev 1 1/11

EVAL6472H

Fully integrated stepper motor driver based on the L6472

Data brief

Features

■ Voltage range from 8 V to 45 V

■ Phase current up to 3 A

r.m.s.

■

SPI with daisy chain feature

■ SW input

■ FLAG and BUSY LED indicators

■ Adjustable supply voltage compensation

■ Suitable for use in combination with STEVAL-

PCC009V2

Description

The EVAL6472H demonstration board is a fully

integrated microstepping motor driver. In

combination with the STEVAL-PCC009V2

communication board and the dSPIN evaluation

software, the board allows the user to investigate

all the features of the L6472 device. In particular,

the board can be used to regulate the L6472

parameters in order to fit application

requirements.

The EVAL6472H supports the daisy chain

configuration making it suitable for the evaluation

of the L6472 in the multi-motor applications.

EVAL6472H

www.st.com

Summary of content (11 pages)

PAGE 1
EVAL6472H Fully integrated stepper motor driver based on the L6472 Data brief Features ■ Voltage range from 8 V to 45 V ■ Phase current up to 3 Ar.m.s. ■ SPI with daisy chain feature ■ SW input ■ FLAG and BUSY LED indicators ■ Adjustable supply voltage compensation ■ Suitable for use in combination with STEVALPCC009V2 Description EVAL6472H The EVAL6472H demonstration board is a fully integrated microstepping motor driver.
PAGE 2
Board description 1 EVAL6472H Board description Table 1. EVAL6472H specifications Parameter Value Supply voltage (VS) 8 to 45 V Maximum output current (each phase) 3 Ar.m.s. Logic supply voltage (VREG) Externally supplied: 3.3 V Internally supplied: 3 V typical Logic interface voltage (VDD) Externally supplied: 3.
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EVAL6472H Board description Table 2.
PAGE 4
Board description Table 4.
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1 2 VS VDD 2 VS Doc ID 022980 Rev 1 1 470 2 YELLOW DL2 1 BUSY BUSY J4 NM J7 SW NM 1 2 23 19 20 18 nCS CK SDI SDO C13 3.
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Board description Table 5. 6/11 EVAL6472H Bill of material Index Quantity Reference Value Package 1 1 C1 220 nF/16 V CAPC-0603 2 2 C2,C4 100 nF/6V3 CAPC-0603 3 1 C3 10 µF/6V3 CAPC-3216 4 1 C5 47 µF/6V3 CAPC-3216 5 1 C6 10 nF/50 V CAPC-0603 6 4 C7, C8, C15, C16 100 nF/50 V CAPC-0603 7 1 C9A 100 µF/6V3 (option) CAPE-R10HXX-P5 8 1 C9 100 µF/6V3 CAPES-R10HXX 9 3 C10, C11, C12 100 pF/6V3 CAPC-0603 10 1 C13 3.
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EVAL6472H Board description Figure 3. EVAL6472H - silkscreen AM10290V2 Figure 4.
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Board description Figure 5. EVAL6472H EVAL6472H - layout (inner layer2) AM10291V1 Figure 6.
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EVAL6472H Board description Figure 7. EVAL6472H - layout (bottom layer3) AM10293V1 Thermal data Figure 8. Thermal impedance graph 25 20 Zth (°C/W) 1.
PAGE 10
Revision history 2 EVAL6472H Revision history Table 6. 10/11 Document revision history Date Revision 21-Mar-2012 1 Changes Initial release.
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EVAL6472H Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale.