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onsemi STR-SMARTLIBGAUGE-GEVK User Manual

onsemi STR-SMARTLIBGAUGE-GEVK User Manual

Strata enabled smart lib gauge automatic support tool

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Summary of Contents for onsemi STR-SMARTLIBGAUGE-GEVK

  • Page 1 The information herein is provided “as-is” and onsemi makes no warranty, representation or guarantee regarding the accuracy of the information, product features, availability, functionality, or suitability of its products for any particular purpose, nor does onsemi assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
  • Page 2 Strata Enabled Smart LiB Gauge Automatic Support Tool User Guide © Semiconductor Component Industries, LLC, 2020 Publication Order Number: October, 2020 – Rev. A Contact your local Sales Representative...
  • Page 3: Table Of Contents

    Strata Enabled Smart LiB Gauge Automatic Support Tool Table of Contents INTRODUCTION ..................................3 Features..................................... 4 Applications ....................................4 USER GUIDE ....................................5 HARDWARE SETUP ..................................5 PLATFORM CONTROL ................................10 http://onsemi.com...
  • Page 4: Introduction

    Sets an adjustment parameter for an operating battery profile. Note: If the user’s actual application adopts the thermistor used for this board, following values obtained in this guide can be used for the gauge. B constant: TSENSE1 Thermistor B (0x06) APT: APT (0x0C) http://onsemi.com...
  • Page 5: Features

    All measured data and the configuration can be saved into a log file using the Strata Developer Studio for the Gauge Simulator. Applications  Wearables and IoT devices  Smartphones and PDA devices  Digital cameras  Portable Game Players  USB-related devices http://onsemi.com...
  • Page 6: User Guide

    BAT+ BAT- TEMP Figure 3: STR-SMARTLIBGAUGE-GEVK Table 2. STR-SMARTLIBGAUGE-GEVK PIN DESCRIPTION Symbol Description On-board gauge power supply. The gauge measures this input voltage as a cell voltage. Connect a battery positive terminal. On-board gauge ground. Connect a battery negative terminal.
  • Page 7 Figure 4 shows the diagram. Note the branch point shown in the figure. These points should be kept nearer to the battery while measuring them using the STR-SMARTLIBGAUGE-GEVK. Detailed information regarding the branch connection is given in Figure 5. This will help to obtain the better parameters for Smart LiB Gauge, because it can reduce the voltage variation (so-called IR drop).
  • Page 8 Charge the target battery to full charge using an external charger. Connect the battery and an external load device. The load device may be a power supply instrument or user’s application. The STR-SMARTLIBGAUGE-GEVK requires that the load device approximately discharge the battery with constant current or constant power.
  • Page 9 Pull wires for VDD and VSS out from wiring between the battery and the load device. Keep BAT+ and BAT-terminals open and connect a thermistor in the same manner as shown in Figure 7. The procedure for the branch points is the same as explained in discharge measurement with the on-board load. STR-SMARTLIBGAUGE-GEVK Battery Pack TEMP...
  • Page 10 Connect the battery and a thermistor and an external charger in the same manner, as shown in Figure 9. The charger should follow general CC-CV charging methods and satisfy the battery charging specifications (e.g., charging voltage, charging current, etc.). STR-SMARTLIBGAUGE-GEVK Battery Pack TEMP...
  • Page 11: Platform Control

    Connect the Strata board to the PC using a USB Mini B cable. The Strata Developer Studio will automatically detect the device, and will bring up the platform control for the board as shown below. Figure 11. PLATFORM CONTROL http://onsemi.com...
  • Page 12 It may also be expressed as design capacity or nominal capacity in the battery datasheet. Enter the Discharge Cut-off Voltage in mV. This is the minimum cell voltage that the battery datasheet permits. If the STR-SMARTLIBGAUGE-GEVK detects the battery discharge cut-off voltage, the board will soon stop the measurement.
  • Page 13 (nF). Otherwise leave it as 0.00nF. APT at the bottom of Capacitance box is calculated from Capacitance value automatically. The STR-SMARTLIBGAUGE-GEVK uses the APT value to delay temperature measurement timing. For more details, refer to the LC709204F datasheet. B constant and APT are set to STR-SMARTLIBGAUGE-GEVK before starting the measurement.
  • Page 14 External Load Current “Log Interval” on right. Constant charging current of external charger in CC charging mode. The input range is from 1 mA to 6 A. Charging Current This current is used to calculate “Estd. Test Time” and “Log Interval”. http://onsemi.com...
  • Page 15 Double Estd. Time Double estimated test time elapses. The STR-SMARTLIBGAUGE-GEVK detects these conditions and warns the on-board MCU of the exceeding conditions with the alarm functions. The platform control sets the threshold in the gauge registers automatically. For more details about the alarm functions, refer to LC709204F datasheet.
  • Page 16 [StopCondition] Cut-offVoltage = On OverVoltage = Off OverCurrent = Off Over/UnderTemp = Off DoubleEstimatedTime = Off [Data] Start_time= 2020/08/13 18:57:28 :25.6,4130 :25.6,4128 :25.6,4127 :25.6,4127 :25.6,4127 :25.6,4126 :25.6,4124 :25.6,4124 :25.3,4124 :25.3,4124 :25.3,4123 :25.3,4124 :25.3,4123 :28.8,2774 :28.8,2761 :28.8,2752 Stop_time= 2020/08/13 23:01:13 http://onsemi.com...
  • Page 17 ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.

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Lc709204f