USER GUIDE
Ɩ
EM8500 SERIES
Copyright
2016, EM Microelectronic-Marin SA
EMDVK8500-MN01, Version 2.0, 5-Jul-16
22
420005-A01, 3.0
8
DAUGHTER BOARD
8.1
OVERVIEW
The EMDVK8500 daughter board development kit is the board containing the EM8500 device.
The board is equipped with:
Ɩ
The power management controller EM8500 in MLF24 package
Ɩ
External components for EM8500
Ɩ
Specific measurements nodes on HRV, LTS, STS, VSUP and VAUX to be measured by the A/D
acquisition unit of the Base Board
Ɩ
Shunt resistors to monitor the current profiles of the HRV, LTS and STS.
Ɩ
Switches to independently connect the HRV, LTS and STS.
Ɩ
Switches to enable some discharge path on HRV, LTS and STS
Ɩ
Relays to select the SPI or I
2
C coming from the Base Board or the Application board.
Ɩ
Relays to connect the wake-up input from the Base Board or the Application board.
Ɩ
Connections to the EM8500 flags (HRV_LOW BAT_LOW) to the Base Board or the Application board.
Ɩ
Connection to HRV.
Ɩ
Super cap and rechargeable battery independently connectable to the LTS output
Ɩ
Connection to external LTS
Ɩ
Connection to external STS and spare footprint for additional STS capacitor
Ɩ
Jumper to connect or disconnect the LTS electronic
Ɩ
Jumper to connect or disconnect the STS electronic
EM8500
LX1
VDD_HRV
I
2
C - SPI
VDD_USB
+USB
A
PPLICATION
B
ASE
BOARD
WAKE_UP
A
PPLICATION
B
ASE
BOARD
VDD_LTS
SuperCAP
Battery
VDD_STS
VAUX2
VAUX1
VAUX0
VSUP
VAUX_GND2
VAUX_GND1
VAUX_GND0
0.2
Ω
shunt
0.2
Ω
shunt
2
Ω
shunt
2
Ω
shunt
2
Ω
shunt
I2C
SPI
WAKE
UP
LTS
STS
A/D
HRV
A/D
LTS
A/D
STS
User
LTS
A/D
VAUX0
A/D
VAUX1
A/D
VAUX2
A/D
VSUP
User
HRV
BAT_LOW
HRV_LOW
A
PPLICATION
A
PPLICATION
B
ASE
BOARD
B
ASE
BOARD
FLAGS
U101
Q101
CN102
CN103
CN104
R111
U103
Q102
CN105
Q103:
A
Q103:
B
J101
J103
RL101-103
C
N
1
0
1
C
N
1
0
6
J105
J106
J102
C
N
1
0
7
User
STS
C
1
1
2
Figure 8-1: Daughter board simplified schematic variant EM8500
