STEVAL-ESC002V1

STEVAL-ESC002V1 Data brief Electronic Speed Controller reference design based on STSPIN32F0A Features • • • • Very compact and light design Designed for sensorless six-step driving 2S to 6S LiPo battery pack Output current up to 20 ARMS • • • • • • • • • Pre-configured firmware package (STSW-ESC002V1) BEMF sensing through OpAmps embedded in STSPIN32F0A Embedded bootloader through UART interface Overcurrent protection Battery voltage sensing RGB LED RoHS compliant WEEE compliant Compliant with Directive 2006/66/EC Description Product summary Electronic Speed Controller reference design based on STSPIN32F0A STEVAL-ESC002V1 Six-step reference design firmware for STEVALESC002V1 STSW-ESC002V1 The STEVAL-ESC002V1 board is a very compact and ready to use Electronic Speed Controller (ESC) reference design. The board can easily fit any small and light drone for racing or surveying purposes, and is also highly suitable for any three-phase BLDC application requiring a small form factor, minimal BoM, and high speed rotation performance. Together with the companion firmware package (STSW-ESC002V1), it represents a solution for sensorless voltage mode six-step driving. The heart of the board is the STSPIN32F0A advanced 3-phase brushless motor controller that embeds an STM32 Cortex®-M0® microcontroller, voltage regulators, signal conditioning circuitry and gate drivers in a small 7x7 mm² QFN package. The power stage is based on the 2.8 mΩ low resistance, high speed STL140N6F7 MOSFETs, designed with STripFET™ F7 technology and able to deliver up to 20 A of continuous current. N-channel 60 V, 0.0024 Ohm typ., 140 A STripFET F7 Power STL140N6F7 MOSFET in a PowerFLAT 5x6 package Advanced BLDC controller with embedded STM32 MCU STSPIN32F0A DB3798 - Rev 1 - December 2018 For further information contact your local STMicroelectronics sales office. www.st.com STEVAL-ESC002V1 1 Schematic diagrams Figure 1. STEVAL-ESC002V1 board schematic (1 of 3) VDD C1 OP3O OP3N OP3P BOOT0 PB7 PB6 RX TX/SWCLK PA15 PA14 SWDIO PA13 100nF DB3798 - Rev 1 36 35 34 33 32 31 30 29 28 27 26 25 C4 680nF C6 680nF C7 680nF LSU OUTU HSU LSV OUTV HSV LSW OUTW HSW OP1O OP1N OP1P OCCOMP 49 EPAD LSU VBOOTU OUTU HSU LSV VBOOTV OUTV HSV LSW VBOOTW OUTW HSW 20 21 22 23 24 C10 100nF 18 C9 47µF PA0 PA1 STSPIN32F0A PA2 PA3 PA4 PA5 PA6 PA7 PB1 D1 STPS0560Z VDD OP2P OP2N OP2O PF0 PF1 VREG12 NRST VM SW VDDA PA0 PA1 ZCW 19 L1 22µH SRN3015-220M 1 2 3 ZCV 4 ZCU 5 6 7 8 9 10 RED 11 GREEN 12 16 C8 330nF OP2P OP2N OP2O PF0 PF1 PWM_IN 17 VM C3 100nF BLUE 13 VBUS 14 CURR 15 C5 1n C2 10µF 25V VDD OP3O OP3N OP3P GND RESERVED BOOT0 PB7 PB6 PA15 PA14 PA13 VREG PA2 PA3 PA4 PA5 PA6 PA7 PB1 TESTMODE OP1O OP1N OP1P OCCOMP U1 R1 39K 48 47 46 45 44 43 42 41 40 39 38 37 VDD page 2/5 STEVAL-ESC002V1 Figure 2. STEVAL-ESC002V1 board schematic (2 of 3) R5 6 7 8 5 Q4 25R 4 LSU 1 6 7 8 4 R4 CON2 OUTV R6 25R LSV 1 2 3 5 Q5 6 7 8 4 1 6 7 8 5 Q3 25R 4 HSW TP1 PAD R7 6 7 8 5 Q6 25R OP3P + 4 LSW R9 10k R10 10k R11 R13 0.001 C11 10nF Panasonic ERJMP3PF1M0U OP2P - VDD OP2O OP2N - R16 10k OP1P R15 470k + TP3 VDD 1 OP1O OP1N R171k - PB1 OCCOMP 1k R14 10k TP2 PF0 PAD 1 2 3 OP3O OP3N 1 + PF1 R8 10k CON3 1 2 3 OUTW 1 2 3 R12 10k STL140N6F7 5 Q2 1 2 3 PAD STL140N6F7 OUTU HSV CON1 1 2 3 25R STL140N6F7 4 HSU R3 STL140N6F7 6 7 8 5 Q1 25R STL140N6F7 R2 VBUS VBUS STL140N6F7 VBUS R20 1k R21 1k U2 in+ LMV321L VCC+ 2 VCC- R18 3 R19 out 4 in- 1k R22 1k C12100nF 5 PA4 10k R23 C13 10nF 24k Figure 3. STEVAL-ESC002V1 board schematic (3 of 3) SWD prog. connector J1 1 2 3 SWD CLK PA14 SWD IO PA13 Power supply VBUS Feedback VBUS SW CON SM03B-SRSS-TB Connector: Pre-crimped wire 150 mm Housing 3 poles 1 mm SH3-SS5-28150 SHR-03V-S-B R24 470k 1% VBUS Debug GPIOs J2 1 2 PB6 PB7 TP6 PA5 TP7 PA7 R25 33k 1% CON2 Bootloader J3 1 2 3 PA14 PA15 BOOT0 C15 C16 C17 C18 C19 4.7µF 4.7µF 4.7µF 4.7µF 4.7µF C20 4.7nF VM CON4 + N1 1 POWER CONTACT C21 220µF/63V CON5 - 1 VBUS Alternative order code Panasonic ECA1JM221 WE 2465850 + R26 330 CON3 C14 4.7µF PA3 + C22 220µF/63V N2 POWER CONTACT PWM input TP4 PA6 WARNING! The board is provided with bulk capacitors C21 and C22 not mounted. Mount the bulk capacitors on the board before using it. TP5 RGB LED control LD1 VDD 1 R28220 PA0 4 A KB KR KG 2 3 R2739 PA2 R2939 PA1 ASMB-MTB0-0A3A2 DB3798 - Rev 1 page 3/5 STEVAL-ESC002V1 Revision history Table 1. Document revision history DB3798 - Rev 1 Date Version 04-Dec-2018 1 Changes Initial release. page 4/5 STEVAL-ESC002V1 IMPORTANT NOTICE – PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2018 STMicroelectronics – All rights reserved DB3798 - Rev 1 page 5/5