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UM-PM-039

DA9070 / DA9231 Fuel Gauge Development Kit

NDA Confidential

User Manual

Revision 2.1

28-Oct-2018

2 of 18

Contents

Abstract ................................................................................................................................................ 1

Contents ............................................................................................................................................... 2

Figures .................................................................................................................................................. 3

Tables ................................................................................................................................................... 3

Terms and Definitions ......................................................................................................................... 3

References ........................................................................................................................................... 3

Introduction .......................................................................................................................................... 4

Default Settings ................................................................................................................................... 4

Board overview .................................................................................................................................... 5

Key Features ........................................................................................................................................ 5

System Diagram .................................................................................................................................. 6

Chip Evaluation Mode ......................................................................................................................... 7

Evaluation Mode Basic Set-up ........................................................................................................... 7

DA9070 Evaluation .............................................................................................................................. 9

Recommended Operating Conditions ............................................................................................. 10

Connectors for DA9070 Evaluation ................................................................................................. 10

GUI Features ...................................................................................................................................... 12

Charging and Discharging................................................................................................................ 12

Applying external loads to LDO and Boost outputs ...................................................................... 12

DA9231 Evaluation ............................................................................................................................ 14

Recommended Operating Conditions ............................................................................................. 14

Connectors for DA9231 Evaluation ................................................................................................. 15

Battery Profile Mode .......................................................................................................................... 16

Revision History ................................................................................................................................ 18

Summary of Contents for DA9070

Page 1: ...NDA Confidential User Manual DA9070 DA9231 Fuel Gauge Development Kit UM PM 039 Abstract This document describes the hardware in the DA9070 DA9231 Fuel Gauge Evaluation and Development Kit...

Page 2: ...ault Settings 4 Board overview 5 Key Features 5 System Diagram 6 Chip Evaluation Mode 7 Evaluation Mode Basic Set up 7 DA9070 Evaluation 9 Recommended Operating Conditions 10 Connectors for DA9070 Eva...

Page 3: ...able 1 Recommended Operation Conditions 10 Table 2 DA9070 Input and Output Connectors 10 Table 3 Default Load Resistor Values 13 Table 4 Recommended Operation Conditions 14 Table 5 DA9231 Input and Ou...

Page 4: ...loads battery profile data and runs the fuel gauge performance test This GUI is used to develop a software fuel gauge based on the user s battery Default Settings The DA9070 settings are loaded from...

Page 5: ...Profile Circuitry Battery Connector Ref Fuel Gauge IC U5 Figure 1 DA9070 Fuel Gauge EVK Board Top View Key Features Single USB connector supports both charging power and communication with PC Support...

Page 6: ...etween USB and UART SPI ports JTAG Communication port for STM32L151 MCU firmware update LTC2941 Reference Coulomb count based fuel gauge IC Battery V I Monitor Circuitry to monitor battery voltage cur...

Page 7: ...e evaluated for current consumption efficiency load line regulation load line transient etc without battery DA9070 can also be evaluated for sequence system load transient while the battery being plug...

Page 8: ...ery to J27 The positive terminal is labeled VBAT_P adjacent to the red test point TP26 Plug in a USB cable into J8 connector Connect the USB cable to either a traveler adapter or a PC The Yellow LED l...

Page 9: ...amage to the EVK board For test and measurement set up please refer to Table 2 for descriptions of connectors on the EVK board DA9070 VBAT_SNS GND TEMP_SNS ILIM_PWR ILIM_CHG ITER_CHG NTC VBAT AGND VDD...

Page 10: ...ectors Pin Names Descriptions J1 VDD_BUCK_M S S and are terminals for connecting an external load to the DA9070 VDD_SYS S and S are kelvin sense points for DA9070 Buck input For input voltage measurem...

Page 11: ...to pin 3 The load switch is controlled by the MCU during battery profiling For evaluation use jumper positions 1 and 2 J14 S and J14 S pins are kelvin sense points of DA9070 input VDD_PWR J16 VDD_SYS_...

Page 12: ...ommand through the GUI The DA9070 fuel gauge outputs IMON and VBAT_DIV are directly controlled by the MCU These registers should not be controlled by the user Charging and Discharging Battery charging...

Page 13: ...1 4W R11 Load resistor for LDO2 rail 154 1 8W R8 Load resistor for Boost rail 3 3k 1 8W If an external load needs to be applied to any rail first remove the jumper previously installed on LDO0 1 2_LD...

Page 14: ...the EVK board For test and measurement set up please refer to Table 5 for descriptions of connectors on the EVK board DA9231 SW VBUCK_SNS PGND VDD_SYS VDD VDD_LDO VLDO SDA SCL GPO GND IC_EN HOST Buck...

Page 15: ...V_USB or VDD_SYS_M of DA9070 S and S are kelvin sense points for DA9231 Buck input J22 VDD IC_EN AGND Set IC_EN to VDD to automatically start the DA9231 when VDD is applied Set IC_EN to AGND to comple...

Page 16: ...This profile is then used by the pre loaded Dialog algorithm for the SOC fuel gauge If the included 80mAh battery is used battery profiling is not necessary the MCU is pre loaded with both the fuel ga...

Page 17: ...le process includes battery profiling lookup table generation and fuel gauge performance test Board calibration can also be performed using the PPM software The main PPM windows are shown in Figure 10...

Page 18: ...es all liability in this respect Customer notes that nothing in this document may be construed as a license for customer to use the Dialog Semiconductor products software and applications referred to...

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