Introduction - Renesas DA9318 User Manual

UM-PM-022
DA9318 Direct Charging Reference Board
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
VBUS
Power
Supply
VBUS
Travel
Adaptor
CC1
CC2
GND
GND
+5V_USB
D+
D-
The DA9318 direct charging reference board, see
and configuration of a battery charging cycle when connected to a TA that includes the iW1781
primary side controller, iW676 secondary side controller and iW656 USB PD interface controller chip
set.
Dialog's software package
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 (D3) is on.
The board contains jumper links, see
measurement test points. Most standard operating modes are evaluated with minimal link changes.
User Manual
CFR0012
Figure 1.
DA9318 Direct Charging Reference Board
IN
Line Transient
J37
nCPEN
OVP_OUT
TPD1S514 RS
J64
10 mΩ
VBUS VBUS
CON SYS
GND
IN+ IN-
SCL
VIN VS INA219
SDA
VDD_IO (3V3)
FAN25
58
3V3
+5V_USB
LP3871
3V3
nCPEN
IUSB[2:0]
nPG
nCHG
nCE
Atmel
SAM3U
SCL
SDA
Figure 1: DA9318 Direct Charging Block Diagram
SmartCanvas™
uses a simple graphical user interface which enables
Figure 6, to provide access to alternative configurations and
Revision 3.2
4 of 39
OUT
DA9318
SCL
SDA
VIN
PMID BOOT SYS
IN SW
PGND
SYS
VBAT
RS
Main Charger 10 mΩ
nPG
BAT
STAT
OTG
nCE nQON
ILIM ILIM
VBAT
OVP_OUT VDD_IO
VDD_IO &
VBUS
VIN_3V3
CC1 SCL
CC2 SDA
TPS65982
SPI
Flash IC
GPIO
VDD_IO
Figure 2, facilitates the measurement, evaluation,
SYS
Load Transient Load
GND
BAT
Battery
Emulator
GND
IN+ IN-
SCL
VS INA219
SDA
I2C
16-Feb-2022
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