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UM-PM-039 

 

DA9070 / DA9231 Fuel Gauge Development Kit 

NDA Confidential 

User Manual 

Revision 2.1 

28-Oct-2018 

 

9 of 18 

© 2018 Dialog Semiconductor 

DA9070 Evaluation  

The typical application diagram of DA9070 is shown i

Figure 5. 

DA9070 includes a Buck regulator, a Boost Regulator, 3x LDO/LDSW, and a linear battery charger. 

On DA9070 Fuel gauge EVK, each regulator can be evaluated individually. It is recommended to 
follow the operation conditions as shown i

Table 1

 to avoid any damage 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

N

T

C

 

VBAT

AGND

VDD_PWR

1.0µF

USB

VDD_SYS

Vdd_sys

4.7µF

VTEMP

PGND_BST

SW_BST

FB_BST

VOUT_BST

VDD_BST

Vdd_sys

Vo_boost

4.5V 

– 18V

MODE

PWR_FLT

SYS_FLT

SDA

SCL

ROUT_N

WD

MCU

VDDIO

VBAT_DIV

GND_DIV

IMON

ADC 

(Fuel 

Gauge)

RIN_N

PUSHBUTTON RESET

PGND_BUCK

FB_BUCK

SW_BUCK

Vo_buck

0.6V 

– 2.1V

300mA

VDD_BUCK

Vdd_sys

VLDO1

0.8V 

– 3.3V

150mA

VLDO2

0.8V 

– 3.3V

150mA

VLDO0

VDD_LDO0

VLDO0

0.8V 

– 3.15V

150mA

Vdd_sys

VLDO1

VDD_LDO1

VLDO2

VDD_LDO2

Vo buck

BATTERY 

PACK

 

Figure 5: DA9070 Typical Application Diagram 

 

 

 

 

Содержание DA9070

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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_...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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