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April 2012 Doc ID 023062 Rev 1 1/9

EVAL6235Q

3-phase BLDC motor driver mounting the L6235Q

Data brief

Features

■ Voltage range from 8 V to 52 V

■ Phase current up to 2.5 Ar.m.s.

■ Adjustable PWM current control OFF-time

■ Logic inputs 5 V / 3.3 V compliant

■ Hall sensor inputs

■ External speed loop

■ Small application footprint with high thermal

performance

■ Suitable for use in combination with

PractiSPIN™ 2 software

Description

The EVAL6235Q is a 3-phase BLDC motor driver

board that allows the user to test the L6235Q

functions.

The board can be driven using the STEVAL-

PCC009V2 communication board and the

PractiSPIN 2 evaluation software.

AM12699v1

www.st.com

Summary of content (9 pages)

PAGE 1
EVAL6235Q 3-phase BLDC motor driver mounting the L6235Q Data brief Features ■ Voltage range from 8 V to 52 V ■ Phase current up to 2.5 Ar.m.s. ■ Adjustable PWM current control OFF-time ■ Logic inputs 5 V / 3.
PAGE 2
Board description 1 EVAL6235Q Board description Table 1. EVAL6208Q electrical specifications Parameter Value Supply voltage (VS) 8 to 52 V Maximum output current (each phase) 2.5 Ar.m.s. Low level logic input voltage 0V High level logic input voltage 5 V / 3.3 V (1) Maximum VREF input voltage (J2 connector) 3.3 V Switching frequency Up to 100 kHz Operating temperature - 25 to +125 °C L6235Q thermal resistance junction-to-ambient TBD 1. Logic inputs are 3.3 V and 5 V compliant.
PAGE 3
EVAL6235Q Board description Table 2.
PAGE 4
/9 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 2 3 Doc ID 023062 Rev 1 DIAG H2 ID0 ID1 H2 H3 H1 5V R9 10k EN AM12701v1 1 2 3 4 5 STRIP254P-M-5 J7 R16 10k H1 H2 H3 R17 10k R12 4k3 2 1 R15 10k R8 1k R6 4k3 R20 56k R19 56k 3 VDD R4 0 ID0 R11 J8 1 TACHO 2 VREF 3 SLOUT 4 5 R18 10k VDD STRIP254P-M-5 TACHO VREF SLOUT VDD GND 100K VREF SLOUT RCOFF C2 100n/4V R3 23k2/1% ID1 1 H1 H2 H3 VDD GND 3V3 BRAKE FW_REV VDD R2 10k/1% 3V3
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EVAL6235Q Board description Table 5. EVAL6235Q - bill of material Index Quantity Reference Value Package 1 1 C1 220 nF / 16 V CAPC-0603 2 2 C2, C6 100 nF / 4 V CAPC-0603 3 2 C3, C5 100 nF / 100 V CAPC-0805 4 1 C4 100 µF / 63 V CAPES-R10H10 5 1 C4A 100 µF / 63 V (option) CAPE-R8H12-P35 6 1 C7 10 nF / 100 V CAPC-0805 7 1 C8 5.
PAGE 6
Board description Figure 3. EVAL6235Q EVAL6235Q - layout (silk screen) AM12702v1 Figure 4. EVAL6235Q - layout (top layer) AM12703v1 Figure 5.
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EVAL6235Q Board description Figure 6. EVAL6235Q - layout (inner layer 3) AM12705v1 Figure 7.
PAGE 8
Revision history 2 EVAL6235Q Revision history Table 6. 8/9 Document revision history Date Revision 11-Apr-2012 1 Changes Initial release.
PAGE 9
EVAL6235Q 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.