Dialog DA9318 User Manual

User Manual
DA9318 Direct Charging
Reference Board
UM-PM-022

Abstract

This document describes the hardware and software used to evaluate the DA9318 direct charging reference board.
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Contents

Abstract ................................................................................................................................................ 1
Contents ............................................................................................................................................... 2
1 Terms and Definitions ................................................................................................................... 3
2 References ..................................................................................................................................... 3
3 Introduction.................................................................................................................................... 4
4 Functional Description ................................................................................................................. 6
4.1 Master Charger ..................................................................................................................... 6
4.2 Power Monitor ....................................................................................................................... 7
4.3 Direct Charging ..................................................................................................................... 7
4.4 Over-Voltage Protection ........................................................................................................ 7
4.5 Direct Charging Sequence .................................................................................................... 8
5 DA9318 Direct Charging Reference Board Hardware ................................................................ 9
5.1 Default Link Positions and Connector Definitions ............................................................... 10
5.2 USB Interface ...................................................................................................................... 14
5.2.1 USB Power and GUI Reset ................................................................................. 14
5.3 Power Supplies ................................................................................................................... 14
6 DA9318 Direct Charging Reference Board Software ............................................................... 15
6.1 GUI Installation .................................................................................................................... 15
6.1.1 GUI Installation Step By Step Guide ................................................................... 16
6.2 Initial USB Connection ........................................................................................................ 19
7 GUI Software ................................................................................................................................ 20
7.1 Controls ............................................................................................................................... 20
7.2 Control Widgets ................................................................................................................... 21
7.2.1 Enable/Disable Polling ......................................................................................... 21
7.2.2 Charging Status Indicators .................................................................................. 21
7.2.3 Raw I/O ................................................................................................................ 22
7.2.4 Interface Control Information ............................................................................... 22
7.2.5 I2C Bus Scan ........................................................................................................ 22
7.2.6 Settings ................................................................................................................ 23
7.3 Quick Start Guide ................................................................................................................ 24
7.3.1 Operational Steps ................................................................................................ 25
Revision History ................................................................................................................................ 26
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1 Terms and Definitions

GND Ground GUI Graphical User Interface IC Integrated Circuit JTAG Joint Test Action Group LED Light Emitting Diode LS Level Shifter OTG On-The-Go PC Personal Computer PD Power Delivery RCP Reverse Current Protection SAM3U USB I2C Interface SCL Serial CLock SDA Serial DAta TA Travel Adaptor USB Universal Serial Bus

2 References

[1] DA9318 Datasheet, Dialog Semiconductor [2] 329-03-A_ SCH.pdf, Dialog Semiconductor
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DA9318 Direct Charging Reference Board
DA9318
Type-C Receptacle
VBUS
Master Charger
SYS
Atmel
SAM3U
D+ D-
VBUS
GND
SYS
BAT
Mini-B
Receptacle
SW
BAT
IN
IN OUT
D+ PORT D- PORT
SCL SDA
IN D+ SAM3U D- SAM3U
GPIO
LP3871
3V3
Travel
Adaptor
Battery
Emulator
Load
nCE
nCE
nPG STAT
nCPEN
nCPEN
SYS
ILIM
IUSB[2:0]
ILIM
GND
INA219
IN+ IN-
VS
SCL SDA
SYS
GND
GND
Hammer board
nPG nCHG
Power Supply
PGND
PMID
SCL SDA
BOOT
3V3
MPC4725
VDD SCL SDA
4V9
VSS
VOUT
D+ PORT
D- PORT
D+ DAC
MPC4725
VDD SCL SDA
4V9
VSS
VOUT
D- DAC
nCS SCLK MOSI MISO
I2C
SPI
D+ SAM3U
D- SAM3U
FAN25
58
1V8
1V8
+5V_USB
+5V_USB
OTG
nQON
GND
VBUS CON
VBUS
SYS
TPD1S514
J37
RS
10 mΩ
INA219
IN+ IN-
VS
SCL SDA
SYS
RS
10 mΩ
DLINK
DLINK
LP3878
4V9
HV LS
I2C_HV
SDA_HV
SCL_HV
SDA_HV
SCL_HV
SDA_HV
SCL_HV
4V91V8
CC1 CC2
FUSB302B
SCL SDA
CC1 CC2
VDD
4V9
J64

3 Introduction

The purpose of the reference board is to demonstrate DA9318 in a direct charging application. The document covers a normal charging cycle, using an off-the-shelf charger IC and a charging cycle
with the direct charging enabled. Direct charging means connecting the travel adaptor (TA) directly to the battery in the constant current charging phase. A block diagram of the DA9318 direct charging reference board is shown in Figure 1.
The DA9318 direct charging reference board, see Figure 2, facilitates the measurement, evaluation, and configuration of a battery charging cycle when connected to a TA that includes the iW1780H primary side controller and iW676 secondary side controller chip set.
Dialog’s software package SmartCanvas™ uses a simple graphical user interface which enables DA9318 to be controlled via the USB port of a PC. The mini USB connection is visible on the left side of the board. When the cable is connected to the USB port of the PC the green LED (D1) is on.
The board contains jumper links, see Figure 6, to provide access to alternative configurations and measurement test points. Most standard operating modes are evaluated with minimal link changes.
Figure 1: DA9318 Direct Charging Block Diagram
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Figure 2: DA9318 Direct Charging Reference Board (329-03-A)
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DA9318
Master Charger
SYS
SW
BAT
IN
IN OUT
nCPEN
nCE
+
-
SYSVBUS
'0'
1'
DA9318
Master Charger
SYS
SW
BAT
IN
IN OUT
nCPEN
nCE
+
-
SYSVBUS
'1'
0'

4 Functional Description

During direct charging the master charger of the battery operated device is bypassed and the TA is directly connected to the battery.
The difference between normal charging and direct charging is illustrated in Figure 3. In order for the direct charging to work, the TA has to have a configurable output voltage and current
limit.
Figure 3: Normal Charging (Top) and Direct Charging (Bottom)

4.1 Master Charger

The master charger is capable of handling a complete charging cycle without host interaction. The input current limit is set via GPIOs and the charging current and dynamic power management
thresholds are set with external pull-down resistors. The charging statuses are communicated via LEDs. The master charger can be enabled with the
nCE signal driven from the microcontroller. During direct charging the master charger is disabled.
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4.2 Power Monitor

Two power monitor ICs (INA226), fitted on the DA9318 direct charging reference board, allow for measurement of the master charger input voltage and input current, and for monitoring the battery current and voltage.
That information is read out via the I2C interface and used in the control GUI software running on the PC.
When direct charging is enabled, the DA9318 internal ADC is monitoring the input/output current and input/output voltage.
Power monitoring is a safety feature associated with direct charging. The input power of the mobile device has to be compared to the output power of the TA. A mismatch indicates a fault condition and the charging has to be terminated.

4.3 Direct Charging

Reverse current protection (RCP) is enabled whenever DA9318 is not in the ACTIVE mode. DA9318 is capable of starting up when V
V
IN2OUT_MAX
When the above conditions are satisfied the DA9318 can be enabled by writing CP_EN to allow for direct charging. The TA voltage is set accordingly to allow an initial 6 A charge current into the battery.
During direct charging the master charger is disabled.
. If V
is not within the accepted range during start-up, the start-up is aborted.
IN
is within the accepted range defined by V
IN
IN2OUT_MIN
and

4.4 Over-Voltage Protection

Over-voltage protection (OVP) is needed for general protection of devices connected to VBUS.
TI TPD1S514, Fairchild FPF2280, and Kinetic KTS1682 can be used as they all are pinout
compatible parts with very similar feature sets.
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NOTE
The DA9318 direct charging reference board communication to the TA is achieved using a Dialog proprietary secondary-side to primary-side digital link communication protocol. The sequence diagram in Figure 4 is provided for information only. Please contact ic-support@diasemi.com for more information.
DA9318TA
Main
Charger
Read (VBAT)
loop
PC
Power
Monitor
TA
Control
nPG=0'
Read VBAT
Configure target VBUS
based on BATT
Write (TARG_VBUS)
TA Control implements first BCS
signaling and then attempts setting
VBUS via QC or AFC signalling
Set (VBUS)
Done
Read (VBUS)
If VBUS rises to the
target value, direct
charging is continued
nCE=1'
CP_EN=1'
loop
Read (IIN)
Direct charging begins
Read (VBUS)
Write (TARG_VBUS)
Write (TARG_ILIM)
As VBAT rises the output voltage of the
TA is increased. After the target VBAT is hit the current limit of the TA is step-
wise reduced
Set (VBUS)
loop
Direct charging ends
CP_EN=0'
nCE=0'
Set (ILIM)
The TA ramps up
the voltage
Write (TARG_ILIM)
Set (ILIM)
The main charger
starts charging
automatically
The main charger
handles the rest of the
charging cycle
Read (VBAT)
Battery connected
Mini USB connected
TA connected

4.5 Direct Charging Sequence

A sequence diagram for direct charging is depicted in Figure 4.
Figure 4: Sequence Diagram for Direct Charging
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Master Charger /

5 DA9318 Direct Charging Reference Board Hardware

The DA9318 direct charging reference board functionality can be broken down into sections, see
Figure 5:
USB Type-C
Master charger / ADCs.
DA9318 direct charging.
USB interface (I
Voltage monitoring connectors and IOs.
Battery and system connectors.
cable input, OVP switch, input connector.
2
C communication) and USB reset.
USB Type-C Cable Input, OVP
Switch, Input Connector
USB Interface (I2C
Communication) and USB
Reset
Figure 5: Functional Sections
DA9318 Direct Charging
Battery and
System
Connectors
ADCs
Voltage Monitoring Connectors and IOs
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Reference Designator
Position
Function
J1 1
IN sense point
2
GND sense point
J2
NA
IN connector
J3
NA
IN connector
J4
1-2
I2C pull-up to VDD_IO
J5
NA
OUT connector
J6
NA
OUT connector
J8
NA
Line transient connector
J9
NA
OUT load transient connector
J10
NA
GND connector (IN side of board)
J11
NA
GND connector (IN side of board)
J12
NA
GND connector (OUT side of board)
J13
NA
GND connector (OUT side of board)
J14
NA
NA
J15
NA
JTAG: reserved
J16
NA
Measurement header

5.1 Default Link Positions and Connector Definitions

Figure 6: Default Link Positions
Table 1: Default Link Positions and Connector Definitions
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Reference Designator
Position
Function
J17
1-2 (Open)
Important: This erases the USB IC firmware. DO NOT SHORT
J18 1-2 (Close)
I2C bypass: SAM3U SCL connected to LS input
2-3
I2C bypass: SAM3U SCL connected to LS output (bypass)
J19 1-2 (Close)
I2C bypass: SAM3U SDA connected to LS input
2-3
I2C bypass: SAM3U SDA connected to LS output (bypass)
J20
1-2 (Open)
PWREN shorted to SYS, DA9318 will immediately go from NO­POWER mode to SHUTDOWN mode when SYS power is supplied.
J21
1-2 (Close)
I2C level shifter IC enabled
J22 1-2 (Close)
SCL from SAM3U connected to DA9318
3-4 (Close)
SDA from SAM3U connected to DA9318
J23 1-2 (Close)
I2C LS power selection: connected to VDD_IO
2-3
I2C LS power selection: connected to AVDD
J24
NA
VBATN connector for cell sensing
J25 1-2 (Close)
nIRQ PU selection: VDD_IO
2-3
nIRQ PU selection: AVDD
J26
1-2 (Close)
Sets VDD_IO to 1.8 V (if J27 open)
J27
1-2 (Open)
Sets VDD_IO to 2.8 V (if J26 open)
J28
NA
VBATP connector for cell sensing
J29 1-2 (Close)
nFAULT PU selection: VDD_IO
2-3
nFAULT PU selection: AVDD
J30
NA
USB inlet
J31 1-2 (Close)
Both sides of level shifter set to VDD_IO
2-3
Level shift from AVDD to VDD_IO
J32
1-2 (Close)
nIRQ connected to level shifter and SAM3U
3-4 (Close)
nFAULT connected to level shifter and SAM3U
5-6 (Close)
CC1 connected to level shifter and SAM3U
7-8 (Close)
CC2 connected to level shifter and SAM3U
9-10 (Close)
PWREN connected to level shifter and SAM3U
11-12 (Close)
nCPEN connected to level shifter and SAM3U
J33 Close (Default)
Short GND to VBATN for a local pack sensing
Open
GND and VBATN disconnected to allow cell sensing
J34 1
SYS sense point
2
GND sense point
J35
NA
SMA connector for measuring SYS
J36 Close (Default)
Short VOUT_DA9318 to VBATP for a local pack sensing
Open
VOUT_DA9318 and VBATP disconnected to allow cell sensing
J37
1-2, 3-4, 5-6 (Close)
IN connector shunt to IN of DA9318
J38 1-2
CC2 (labeled as TP7) pulled up to rail selected by J41
2-3 (Close)
CC2 (labeled as TP7) pulled to ground
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Reference Designator
Position
Function
J39 1-2
CC1 (labeled as TP6) pulled up to rail selected by J40
2-3 (Close)
CC1 (labeled as TP6) pulled to ground
J40 1-2 (Close)
CC1 (labeled as TP6) PU selection: VDD_IO
2-3
CC1 (labeled as TP6) PU selection: AVDD
J41 1-2 (Close)
CC2 (labeled as TP7) PU selection: VDD_IO
2-3
CC2 (labeled as TP2) PU selection: AVDD
J42 1-2 (Close)
nIRQ pulled up to rail selected by J25
2-3
nIRQ pulled to ground
J43 1-2 (Close)
nFAULT pulled up to rail selected by J29
2-3
nFAULT pulled to ground
J44 1-2 (Open)
Important: DO NOT SHORT
2-3 (Open)
Connect PWREN to GND to enter NO-POWER mode. Make sure J20 is open before installing a jumper in this position.
Note: J44 pin 2 is connected to AVDD by default
J45 1-2 (Close)
nCPEN shorted to AVDD
2-3
nCPEN shorted to GND
J47
NA
NA
J48
NA
SYS connector
J50
NA
SMA connector for measuring C2N (labeled as C2M)
J51
NA
SMA connector for measuring C2P
J52
NA
SMA connector for measuring IN
J53
NA
SMA connector for measuring OUT
J54
NA
SMA connector for measuring C1N (labeled as C1M)
J55
NA
SMA connector for measuring C1P
J56
1-2 (Open)
Master Charger thermistor sensor short to ground
J57
1-2 (Close)
Master Charger Status read connection to Atmel
J58
1-2 (Close)
Master Charger Current Limit settings
J59
1-2 (Close)
OTG to Ground
J60
1-2 (Close)
INTB GPIO connection to SAM3U
J61
1-2 (Close)
Master charger enable through GPIO
J62
1-2 (Close)
Master charger enable
J63
1-2 (Open)
PGB GPIO connection to SAM3U
J64
1-2 (Close)
DA9318 input disconnect
J65
1-2 (Open)
DA9156 input disconnect
J66
1-2 (Open)
DA9156 IRQ pull-up
J67
1-2 (Open)
DA9156 ISET pull-up
J68
1-2 (Open)
DA9156 GPIO0 pull-up
J69
1-2 (Open)
DA9156 GPIO1 pull-up
J70
NA
NA
J71
NA
NA
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Reference Designator
Position
Function
J72
1-2 (Close)
I2C high voltage level shifter enable
J73 1-2 (Close)
Master charger thermistor connection 2-3
J74
1-2 (Open)
Master charger DSEL settings
J75 1-2
Master charger PSEL settings 2-3 (Close)
J76 1-2
DA9156 battery ID connected to variable impedance
2-3 (Default)
DA9156 battery ID connected to fixed impedance
J77 1-2 (Open)
Dplus connected to SAM3U PB11 port
2-3 (Open)
Dplus connected to SAM3U PC15 port
J78 1-2 (Open)
Dplus connected to SAM3U PB12 port
2-3 (Open)
Dplus connected to SAM3U PC16 port
J79 1-2 (Close)
Both sides of level shifter set to VDD_IO
2-3
Level shift from AVDD to VDD_IO
J80
NA
Load transient connector
J81
NA
USB-C inlet
S3
NA
Push button to reset the USB IC
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Switch Name
Reference Designator
Type
Function
USB RESET
S3
Push button
Shuts down the on-board regulator that generates the interface supply
NOTE
For correct operation, connect the reference board to a USB port capable of supplying 500 mA.

5.2 USB Interface

The DA9318 direct charging board uses an ATMEL® SAM3U® microcontroller as the USB transceiver, programmed to deliver the following functionalities:
2
I
C control interfaces.
Discrete digital IO control (General Purpose Input Output (GPIO) and dedicated functions).

5.2.1 USB Power and GUI Reset

The USB is powered by an on-board regulator (VR2), see Figure 7. Pressing the USB RESET switch S3 shuts down the on-board regulator VR2, powering down the supply for the SAM3U (USB I2C interface). This resets the GUI communication with the reference board.
Figure 7: USB Interface Connector and Reset Switch
Table 2: Power Configuration Switch

5.3 Power Supplies

The DA9318 direct charging board is powered up when a power source is connected to IN (J48). IN operating voltage range is +5.5 V to +10.5 V.
The VDD_IO voltage is generated by an on-board regulator (VR1) supplied from the +5 V USB. By default, the on-board generated VDD_IO is +1.8 V (J26 jumper is POP, J27 jumper is UNPOP):
To change the on-board VDD_IO to +2.8 V, J27 must be fitted while J26 is UNPOP.
To change the on-board VDD_IO to +3.3 V, J26 and J27 must be UNPOP.
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6 DA9318 Direct Charging Reference Board Software

The board is controlled using a graphical user interface (GUI), which requires a PC operating Windows® 2000/XP/Vista/Windows 7 with a USB1.1 or USB2 interface. The GUI allows the user to:
Perform raw write and read operations to all control registers on Dialog and non-Dialog ICs.
Monitor the charging status.
Plot the DA9318 efficiency over time with saving and zoom feature.
Plot the master charger efficiency over time with saving and zoom feature.
Plot the DA9318 temperature over time with saving and zoom feature.
Poll the DA9318 registers.
Read ADC data from DA9318 (V
Read ADC data from external ADC ICs (V
enabled.
Control the TA voltage and current limit; and master charger voltage termination, charge current
and current limit.
Send default settings.
Read all registers displayed.
Clear faults.
, V
BAT
, IIN, I
IN
and T
OUT
, V
BAT
, I
IN
IN
) when the DA9318 is enabled.
JUNC
and I
) when the master charger is
OUT

6.1 GUI Installation

The files required to install the software are available on the supplied USB drive. To install the DA9318 reference board software:
1. Run setup_DA9318_Reference_GUI.x.x.x.xx.exe.
2. On completion, insert the USB cable and apply V a. For first time users Windows should detect the attached USB device. If this is not the case, it
may be necessary to install the driver by navigating to the required driver file in the USB driver directory, see section 6.2. After installing the driver, reboot the PC to ensure correct operation.
3. Start the software by running DA9318 Reference GUI.exe.
and VIN.
SYS
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6.1.1 GUI Installation Step By Step Guide

Figure 8: GUI Setup License Agreement
1. Select I accept the agreement then click Next.
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2. Click Next.
Figure 9: GUI Setup Destination Location
Figure 10: GUI Setup Start Menu Location
3. Click Next.
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Figure 11: GUI Setup Additional Tasks
4. Select the Create a desktop shortcut check box (if required) and click Next.
Figure 12: GUI Setup Start Installation
5. Click Install.
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Figure 13: GUI Setup Finish and Launch
6. Click Finish.
Once the installation is completed, you may need to restart your computer. When the software is installed, insert the USB cable before applying V
SmartCanvas software can be started after power up.
and VIN. The DA9318
SYS

6.2 Initial USB Connection

On connecting the USB to the PC for the first time, the SAM3U USB driver will request driver updating/installation from the Windows operating system. On Windows 7 (32-bit) operating systems (OS) the driver usually installs automatically. On Windows 7 (64-bit) machines it is common for the complete driver installation to fail. If this happens, install the driver manually by following these steps:
1. Control Panel Devices and Printers (double-click device with yellow exclamation sign).
2. Update Driver.
3. Browse my computer for driver software.
4. Select the Driver folder location: C:\Dialog Semiconductor\Power Management\DA9318 Reference GUI\Driver.
5. If Windows warns about the driver, select Install anyway.
6. Remove the USB cable and then re-insert it into the reference board.
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NOTE
A display size other than the recommended setting will affect the way in which the panels appear.

7 GUI Software

Run the DA9318 Reference Board GUI software by clicking the shortcut on the appropriate item in the Start menu (All Programs Dialog Semiconductor Power Management DA9318 Reference GUI). The screen shown in Figure 14 is displayed.
The minimum recommended setting for the PC display size is 1024x768 pixels. Font size on the PC display should be Normal (95 dpi).

7.1 Controls

Figure 14 shows the main GUI interface.
Figure 14: Main GUI Interface
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7.2 Control Widgets

7.2.1 Enable/Disable Polling

The polling switch enables or disables polling of the device registers and the refreshing of the registers controls on the GUI interface.
Figure 15: Polling

7.2.2 Charging Status Indicators

The Status Indicators window, see Figure 16, displays the following information:
Pre-Charge: When the battery voltage is below 3 V (V
lower charge current of 128 mA.
), the battery is pre-charged at a
BATLOW
Constant-Current: When the battery voltage is above 3 V and below the constant voltage
threshold; this indicator will light green. This indictor will also light green in conjunction with the Slave Charging indicator during direct charger.
Constant-Voltage: When the battery voltage reaches the master charger constant voltage
termination voltage threshold, this indicator will light green indicating charger is in constant voltage.
Slave Charging: This indicator will light green when slave charging (DA9318) is enabled
indicating direct charging.
DONE: This indicator will light green when charge cycle is complete.
The update actions are as follows:
Read All Registers – even if the hardware device is not being actively polled then all the
registers can be polled once by pressing this button.
Figure 17: Read All Regs Button
Figure 16: Board Status
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7.2.3 Raw I/O

The Raw I/O control sends the entered device address, register address and data on the I2C communications interface. If the information sent is not valid then the I2C message will return NACK an error message will be displayed in the Status window.
Figure 18: Raw I/O

7.2.4 Interface Control Information

In the View menu, click on Status, the Status window is displayed. In the Status window, select the Log tab and Log Level: Info. This will display interface control
information including: name, parent register and the bits to which this control corresponds, current value, whether it is read-only or R/W access, and finally a description of each possible setting.
Figure 19: Interface Control Information

7.2.5 I2C Bus Scan

In the Tools menu, click on Scan I2C, the I2C Bus Scan window is displayed. In the I2C Bus Scan window, selected Scan. Once the scan has completed, all I2C slave addresses
will be displayed.
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Figure 20: I2C Bus Scan

7.2.6 Settings

In the Options menu, click on Settings, the Settings window is displayed. The U2 and U8 INE226 ADC ICs can be configured in the Settings window.
Figure 21: Settings
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Master Charger
DA9318
Overvoltage
Protection IC
Travel
Adaptor (TA)
DLINK
VBUS
SYS
BATT
BATT
4 5 2
1
3
6
7

7.3 Quick Start Guide

The recommended steps to operate the DA9318 direct charging reference board are shown below.
Figure 22: Test Setup
Figure 23: GUI Configuration
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NOTE
The battery voltage should be less than 3.6 V to allow for a 6 A initial charge current.
NOTE
Unless the watchdog timer is serviced, it is recommended to disable it by disabling the Chgr Watchdog switch while the master charger is enabled.
This is to ensure that the master charger does not initiate a power-on-reset when the watchdog timer has expired. Indeed, when the watchdog timer has expired, the device returns to default mode and all registers are reset to default values.

7.3.1 Operational Steps

The following operational steps assume that a battery is inserted initially and then the TA is inserted to J81. In addition, J30 must be connected to the USB port of a computer for I2C communication using the DA9318 Reference Board SmartCanvas GUI software.
The button or status indicator locations for each operational step are highlighted in Figure 23:
1. Click the Read All button, to read all registers to their current states.
2. Click the Send DFLT button, to send the default settings/
3. Click the No Faults button, to clear any faults.
4. Enable the Polling switch. The Constant-Current status indicator flags green, signaling that the master charger is enabled.
5. Enable the Master/Slave switch. Direct charging is enabled via DA9318 and the Constant- Current and Slave Charging status indicators flag green.
6. When the Constant-Voltage status indicator flags green, step down the TA CC Setting by 100 mA steps (or greater initially) until the minimum value is reached (400 mA). Note that for each step the Constant-Voltage status indicator will alternately flag red and green as the battery charges up.
7. When the TA CC Setting has reached the minimum value, disable the Master/Slave switch to return to master charger until the DONE status indicator flags green, signaling the end of the charge cycle.
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Revision
Date
Description
1.0
01-Mar-2017
Initial version.

Revision History

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