EVAL-L99ASC03
L99ASC03 Evaluation Board
Data brief
Description
The EVAL-L99ASC03 is an evaluation board
designed for sensorless 3Phase BLDC motor
control. It's composed by a mother-board and a
daughter-board on which is pre-assembled the
L99ASC03. The system features an enhanced
power management power supply functionalities
including various standby modes.
Features
Two separated and signal shielded stages:
driver & power
ISO pulse protection (not soldered)
Reverse polarity protection available on each
battery voltage input: Vs, VSREG, power stage
Current reference comparator
PCB temperature sensor
Hall sensors connector and conditioning circuit
INH_wake-up button
Microcontroller configured to be supplied by
L99ASC03 5V LDO
The motherboard, based on STM8
microcontroller, provides the logic section for
monitoring and driving the L99ASC03 assembled
in the daughterboard.
With the aim to make the board usage and
settings simpler, ST provides a dedicated userfriendly software with a Graphic User Interface
(GUI). This enables the user to set L99ASC03
parameters and at the same time it shows real
time device information as the current evolution,
motor speed (RPM), the fault flags, the board
temperature and much more.
Table 1. Device summary
Order code
Flash mode configurable
Compatible with external power boards
December 2017
EVAL-L99ASC03
DocID031386 Rev 1
For further information contact your local STMicroelectronics sales office.
Reference
L99ASC03
evaluation board
1/7
www.st.com
Contents
EVAL-L99ASC03
Contents
1
Demonstration software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1
System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Appendix A Application schematics and layouts . . . . . . . . . . . . . . . . . . . . . . . . . 4
A.1
L99ASC03 daughterboard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
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DocID031386 Rev 1
EVAL-L99ASC03
1
Demonstration software
Demonstration software
A software GUI (Graphical User Interface) for easy demonstration of the L99ASC03 is
available on www.st.com.
1.1
System requirements
Windows OS (XP, 7, 8)
USB type B
DocID031386 Rev 1
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5
Application schematics and layouts
Appendix A
A.1
EVAL-L99ASC03
Application schematics and layouts
L99ASC03 daughterboard
Figure 1. EVAL-L99ASC03 top layer
Figure 2. EVAL- L99ASC03 bottom layer
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Figure 3. EVAL-L99ASC03 schematic
Revision history
EVAL-L99ASC03
Revision history
Table 2. Document revision history
6/7
Date
Revision
14-Dec-2017
1
Changes
Initial release.
DocID031386 Rev 1
EVAL-L99ASC03
IMPORTANT NOTICE – PLEASE READ CAREFULLY
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