dm00127306

UM1806
User manual
EFL700A39 evaluation board kits and design-in board user guide
Introduction
This note describes the operation and the instruction for using the three kits developed for
training and supporting the design of the solid state thin film battery EnFilm™
EFL700A39.

The EFL700EVALKIT evaluation kit (order code: EFL700EVALKIT) allows to discover
the operation of the EFL700A39 and to monitor the voltage and the charge/discharge
current in real use-case condition. It includes one EnFilm™ load board and one
EFL700PMB power management board (Figure 1).

The EFL700PMB design-in kit (order code: EFL700PMB) includes one EFL700PMB
board embedding all the necessary power management circuit around one EnFilm™
EFL700A39 (Figure 2).

The new EFL1-NFC-PMB design-in kit (order code: EFL1-NFC-PMB) includes one
EFL700PMB board embedding a NFC contactless smart charger and an advanced ST
ultra-low current consumption EnFilm™ power management solution on a tiny
EFL700A39 footprint size board (Figure 3).
Both EFL700PMB and EFL1-NFC-PMB kits can be directly connected in the application for
a fast evaluation and are also compatible with the EnFilm™ monitoring load board.
April 2016
DocID026737 Rev 3
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www.st.com
Contents
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Contents
1
2
3
4
5
General description and features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1
EFL700 power management board (EFL700PMB) . . . . . . . . . . . . . . . . . . 4
1.2
The EFL1-NFC-PMB power management board . . . . . . . . . . . . . . . . . . . . 4
1.3
The EnFilm™ load board from EFL700EVALKIT . . . . . . . . . . . . . . . . . . . . 5
The EFL700PMB power management board . . . . . . . . . . . . . . . . . . . . . 6
2.1
Pictures of the EFL700PMB board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2
Block diagram of the EFL700PMB board . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3
Using the EFL700PMB board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
The EFL1-NFC-PMB power management board . . . . . . . . . . . . . . . . . . . 8
3.1
Pictures of the EFL1-NFC-PMB board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2
Block diagram of the EFL1-NFC-PMB board . . . . . . . . . . . . . . . . . . . . . . . 8
3.3
Using the EFL1-NFC-PMB board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
The EFL700EVALKIT evaluation kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1
Description of the complete evaluation kit with the EFL700PMB connected
to the EnFilm™ load board (LB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
4.2
Block diagram of the complete evaluation kit with the EFL700PMB
connected to the EnFilm™ load board . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.3
Using the complete EFL700EVALKIT evaluation kit . . . . . . . . . . . . . . . . 13
4.4
Block diagram of the EFL1-NFC-PMB connected to the EnFilm™ load board
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.5
Use case with a PV energy harvester and the EFL700PMB board . . . . . 15
Electrical schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.1
EFL700PMB power management board . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.2
EnFilm™ load board from EFL700EVALKIT . . . . . . . . . . . . . . . . . . . . . . 18
5.3
EFL1-NFC-PMB power management board . . . . . . . . . . . . . . . . . . . . . . 19
6
Bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
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Contents
Figure 1. Picture of the EFL700EVALKIT kit
Figure 2. EFL700PMB kit
Figure 3. EFL1-NFC-PMB kit
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General description and features
1
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General description and features
The EFL700A39 EnFilm™ battery brings many benefits compared to conventional battery:

Low thickness

Low self-discharge

Extremely long calendar and cycle life time

High safety with no risk of burning or explosion
EFL1-NFC-PMB, EFL700PMB and EFL700EVALKIT kits were developed to help designers
to evaluate the charge and discharge performances of the EnFilm™ EFL700A39 with a
proper setup of power management.
The EFL700PMB and the EFL1-NFC-PMB kits include each one PCB: Each power
management board has the same size as the EFL700A39 battery which is mounted on the
top side, it can be charged by different type of energy source and can be connected to any
kind of load with its own power management circuit.
Whatever the harvester and load system are, both EFL700PMB and EFL1-NFC-PMB allow
a safe and efficient use of the EFL700A39 micro-battery.
1.1
EFL700 power management board (EFL700PMB)

Manages the charge voltage regulation and the deep discharge protection of the
EFL700A39

Includes buffer capacitors to sustain high pulsed discharge current. Buffer capacitors
can be disconnected with the switch SW1

Supports the charge through an external energy harvesting source (5.0V MIN)
The EFL700PMB can be used in association with an USB port, a photovoltaic panel or any
kind of harvester with its own power management.
1.2
The EFL1-NFC-PMB power management board

Includes an embedded NFC contact-less smart charger based on the ST M24LR04E-R
dynamic NFC/RFID tag IC for easy and fast EnFilm™ charge

Manages the charge voltage regulation and the deep discharge protection of the
EFL700A39 using an advanced ST ultra-low current consumption power management
IC

Includes also an additional power input pin for wire plugging of an external charger like
an energy harvesting source or any other power supply (4.5V MIN).
The EFL1-NFC-PMB can be powered by a NFC/RFID reader, a NFC-enabled phone, a
photo-voltaic panel or any kind of harvester with its own power management.
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1.3
General description and features
The EnFilm™ load board from EFL700EVALKIT
This board is included inside the EFL700EVALKIT kit together with an EFL700PMB power
management board. The EnFilm™ load board embeds:


An analog ammeter and a digital voltmeter allowing the user to monitor:
–
The current delivered by the source by pressing PB1.
–
The current going through the EFL700A39 battery by pressing PB2.
–
The battery voltage
A pulsed load emulator with the possibility to adjust the pulsed load cyclic ratio. Its
features are:
–
Enable / disable function by toggling the switch SW3.
–
Default pulsed load current set to 5 mA during a pulse time of 100 ms every 10 s.
–
Tunable pulse duration from 1 ms up to 100 ms through RA1 rheostat.
–
Tunable pulse repetition time from 1 s up to 10 s through RA2 rheostat.
The LB can be powered via 2 mm banana connectors or a micro-USB plug.
The EFL1-NFC-PMB board is compatble with the LB and will operate in the same way than
the EFL700PMB when connected to the LB.
The use of the EnFilm™ load board is recommended to get familiar with operations of both
EFL700PMB and EFL1-NFC-PMB power management boards and thus with the
EFL700A39 electrical management characteristics.
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The EFL700PMB power management board
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2
The EFL700PMB power management board
2.1
Pictures of the EFL700PMB board
Figure 4. EFL700PMB board top side
2.2
Figure 5. EFL700PMB board bottom side
Block diagram of the EFL700PMB board
Figure 6. Synoptic of the EFL700PMB board
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2.3
The EFL700PMB power management board
Using the EFL700PMB board
The EFL700PMB board can be used separately in your own application to supply areal IoT
(Internet of Things) application case with a micro-controller and radio circuit load.
For this, it will be necessary first to jump strap the I1 to I1’ pins and I2 to I2’ pins as shown
below in Figure 7.
Figure 7. Description of the EFL700PMB board
The EFL700PMB board characteristics are the following at 25°C:

4.2 V output voltage limitation during the charge of the battery

Deep discharge battery protection when output voltage gets down to 3.2 V

USB fast charge
When turning “ON” both SW1 switches on the EFL700PMB board, the user connects 12
SMD buffer capacitors mounted on the PMB board to the output node. Buffer capacitors
work in parallel with the EFL700A39 micro-battery and are dedicated for high current pulse
applications. As shown in the Figure 7, SW1 is a two-way switch. Turning “ON” the way #1
connects 4 of the 12 buffer capacitors. Turning “ON” the way #2 connects 8 of the 12 buffer
capacitors. Each of the 12 buffer capacitor is a 220 μF 1206 HiCap MLCC capacitor
resulting actually in a typical 800 μF capacitance value under 4 V bias when all buffer cap
are connected.
An external PV panel or any other energy harvesting source connected on PV+ and PVpins should have an output voltage above 5.0 V to enable the EnFilm™ charge.
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The EFL1-NFC-PMB power management board
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3
The EFL1-NFC-PMB power management board
3.1
Pictures of the EFL1-NFC-PMB board
Figure 8. EFL1-NFC-PMB board top side
3.2
Figure 9. EFL1-NFC-PMB board bottom side
Block diagram of the EFL1-NFC-PMB board
Figure 10. Synoptic of the EFL700PMB board
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3.3
The EFL1-NFC-PMB power management board
Using the EFL1-NFC-PMB board
The EFL1-NFC-PMB board can be used with the EnFilm™ load board or separately in your
own application. It can be plugged directly in your system to supply a real IoT (Internet of
Things) device with a micro-controller and radio circuit load.
For this, it will be necessary to jump strap POWER to CHGIN pins and BATIN to BAT pins
as shown below in the Figure 11.
Figure 11. Description of the EFL1-NFC-PMB board
The EFL1-NFC-PMB board characteristics are the following at 25°C:

4.2 V output voltage limitation during the charge of the battery

Deep discharge battery protection when output voltage gets down to 3.3 V

Easy NFC contact-less fast charge with LED indicator on top EnFilm™ side

Ultra-low nano-current consumption on EnFilm™:

–
350 nA MAX in battery power supply mode (power backup)
–
10 nA MAX in shelf-mode or brownout protection
Ultra-low micro-power consumption on external charger input:
–
4.5 μW MIN power need to start charging with an energy harvesting source
An external PV panel or any other energy harvesting source connected on PV and GND
pins should have an output voltage above 4.5 V to enable the EnFilm™ charge.
The EFL1-NFC-PMB board can be wirelessly charged thanks to the enmbedded NFC/RFID
smart charger. This unique feature allows easy and fast EnFilm™ charge thanks to any
NFC/RFID reader or NFC-enabled phone.
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The EFL1-NFC-PMB power management board
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For quick start, ST recommends the use of the RF transceiver demonstration board
included inside the ST M24LR-DISCOVERY kit (order code: M24LR-DISCOVERY).
For detailed information, refer to the ST UM1589 user manual available on www.st.com.
The RF transceiver board is an USB RFID reader demonstration board that includes the
CR95HF 13.56-MHz multi-protocol contact-less transceiver. This board has to be plugged in
to a PC and comes with a demonstration software.
Figure 12. RF transceiver demonstration board

Using the EFL1-NFC-PMB board with the ST RF transceiver demonstration board
a)
Download and install the M24LR/CR95 application software setup file
[STSWM24LR011] available in dedicated web pages on www.st.com.
b)
2.Connect the RF transceiver demo board to a PC with a USB cable.
c)
Launch setup.exe, and select CR95HF Demo Kit. Then, open the Demo NDEF
messages menu or the Image Transfert Application menu for example.
d)
Place the EFL1-NFC-PMB board antenna close to the RF transceiver demo board
antenna.
The RF transceiver board powers the EFL1-NFC-PMB board and the green LED is lighting.

Using the EFL1-NFC-PMB board with Android NFC phones
a)
Enable NFC communication on your phone (Settings >Wireless and Networks >
NFC).
b)
Download the NfcV-Reader Application from Google Play Store.
c)
Launch the NfcV-Reader application.
d)
Place the phone's NFC antenna close to the EFL1-NFC-PMB board antenna.
The phone powers the EFL1-NFC-PMB board and the green LED is lighting.
Please note that performance may vary depending on the NFC phone and its RF
management system.
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The EFL700EVALKIT evaluation kit
4
The EFL700EVALKIT evaluation kit
4.1
Description of the complete evaluation kit with the
EFL700PMB connected to the EnFilm™ load board (LB)
Figure 13. Description of the EFL700PMB connected to the EnFilm™ load board
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The EFL700EVALKIT evaluation kit
4.2
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Block diagram of the complete evaluation kit with the
EFL700PMB connected to the EnFilm™ load board
Figure 14. Synoptic of the EFL700EVAKIT kit
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4.3
The EFL700EVALKIT evaluation kit
Using the complete EFL700EVALKIT evaluation kit
The complete discovery kit gives the possibility to monitor the EFL700A39 charging and
discharging currents as if the EFL700A39 battery was used in a real case application with
high pulse current load. It also helps to monitor the charging current delivered by an external
charger like an energy harvesting device or an USB port.
First connect +5 V power supply on the LB board via 2 mm banana plugs or USB connector.
Toggle the SW3 switch to the left position in order to switch “OFF” the pulsed load emulator
operation.
Then, connect an external PV panel or any other energy harvesting device having an output
voltage above 5 V to the left side connector of the EFL700PMB board as shown in the
Figure 13 (PV+ and PV- pins).
In order to monitor the current delivered by the PV through the analog ammeter, press the
PB1 push button. The ammeter sensitivity can be adjusted by selecting the correct position
of the RS1 rotary switch (depending on the PV current capability):

Position 1: “10” marking on the ammeter means 10 mA current is flowing.

Position 2: “10” marking on the ammeter means 1 mA current is flowing.

Position 3: “10” marking on the ammeter means 100 μA current is flowing.
Pressing the PB2 push button will show through the ammeter the current that goes in or out
of the EFL700A39 micro-battery.
The digital voltmeter indicates the charging voltage of either both EFL700A39 and buffer
capacitor when SW1 switch is “ON” or EFL700A39 alone when SW1 switch is “OFF”.This
digital voltmeter shall indicate +4.2 V when the EFL700A39 is fully charged.
By turning “ON” the SW3 switch (right position), a current burst operation mode is emulated
(default settings: 5 mA / 100 ms every 10 s). In order to see the response of the PMB board,
press PB1 or PB2 (never press both at the same time). This will show how the charger and
PMB work together. If the charge source does not provide enough current, the PMB board
will supply burst current until the EFL700A39 voltage gets down to its security range.
Indeed, when the battery voltage falls below 3.2 V the power management IC embedded on
the PMB board will disconnect the EFL700A39 in order to prevent it from deep discharge.
The adjustment of the pulsed load duty cycle can be performed with RA1 and RA2
rheostats. RA1 controls the pulse duration whereas RA2 controls the pulse repetition time. A
probe scope can be connected between TP3 and TP4 test points to tune the switching time
of the pulse load.
If for any reason there is a need to fast charge the EFL700A39 - and buffer capacitors if
connected - then users can easily connect the EFL700PMB board micro USB plug to an
external USB port.
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The EFL700EVALKIT evaluation kit
4.4
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Block diagram of the EFL1-NFC-PMB connected to the
EnFilm™ load board
The EFL1-NFC-PMB board is compatble with the EnFilm™ load board and will operate in
the same way than the EFL700PMB when connected to the EnFilm™ load board.
Figure 15. Synoptic of the EFL1-NFC-PMB connected to the EnFilm™ load board
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4.5
The EFL700EVALKIT evaluation kit
Use case with a PV energy harvester and the EFL700PMB
board
Step 1: Control of the efficiency of the PV energy harvester
The load is disconnected. Pressing PB1 permits the user to monitor the current delivered by
the PV energy harvester. Then, activate the pulsed load current emulation by toggling SW3
switch on the EnFilm™ load board
Figure 16. Step 1 schema and picture
Step 2: Connection of the load for 100 ms
PB2 monitors the current in the EFL700A39. The load is mainly supplied with buffer cap
energy at the same time the EFL700A39 also participates. Voltage drops consequently
from some tens of mV.
Figure 17. Step 2 schema and picture
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The EFL700EVALKIT evaluation kit
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Step 3: At the very beginning of disconnection of the load
PB2 monitors the current in the EFL700A39. The EFL700A39 is recharging the buffer cap,
so current is still negative but reduces as the buffer cap gets charged.
Figure 18. Step 3 schema and picture
Step 4: Load disconnected after a while
PB2 monitors the current in the EFL700A39. Once the buffer cap is charged, the
EFL700A39 is getting charged at its turn by the PV harvesting system so the current is
positive now until the voltage threshold of 4.2 V is reached.
Figure 19. Step 4 schema and picture
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Electrical schematics
5
Electrical schematics
5.1
EFL700PMB power management board
Figure 20. Electrical schematic of the EFL700PMB board
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Electrical schematics
5.2
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EnFilm™ load board from EFL700EVALKIT
Figure 21. Electrical schematic of the EnFilm™ load board
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5.3
Electrical schematics
EFL1-NFC-PMB power management board
Figure 22. Electrical schematic of the EFL1-NFC-PMB board
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Bill of materials
6
UM1806
Bill of materials
Table 1. BOM of the EFL700PMB board
Reference
Designation
BT
EnFilm™ - rechargeable
solid state lithium thin film
battery
C1
Ceramic capacitor
C2-C13
Ceramic buffer capacitors
Supplier
Ref. parts
Value
STMicroelectronics
EFL700A39
700µA.h / 3.9 V
AVX
06033D105KAT2A
1 µF
MURATA
GRM31CR60J227M
8 x 220 µF
TE Connectivity
1981584-1
CN1
Connector Micro-USB
CN2
Connector board-to-board
MULTICOMP
2212S-08SG-85
D1
Diode
MULTICOMP
1N4148W
D2
Diode
MULTICOMP
1N4148W
8 way / 2.54 mm pitch
OUT1,
OUT2
Connector
Winslow
W35532TRC
2 way / 2.54 mm pitch
PVP, PVM
Connector
Winslow
W35532TRC
2 way / 2.54 mm pitch
R1
Resistor
PANASONIC
ERJP06F51R1V
51.1 ohms / 0.5W
R2
Resistor
PANASONIC
ERJ6GEY0R00V
0 ohms
R3A
Resistor
PANASONIC
ERJ3GEY0R00V
0 ohms
R3B
optional / not populated
SW1
DIP Switch
MULTICOMP
MCDHN-02F-T-V
2 way
LINEAR
TECHNOLOGY
LTC4071EMS8E
U1
PCB
20/24
Shunt battery charger system
with low battery disconnect
PMB board
AXIANE
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Bill of materials
Table 2. BOM of the EnFilm™ load board
Ref.
Designation
Supplier
Ref. parts
BP1
SWITCH PUSH BUTTON
APEM
18545CD
BP2
SWITCH PUSH BUTTON
APEM
18545CD
Value
C3
Ceramic Capacitor
AVX
06035C103JAT2A
10nF
C4
Ceramic Capacitor
KEMET
C0603C475K9PACTU
4.7µF
C5
Ceramic capacitor
MURATA
GRM31CR60J227M
220µF
C6
Ceramic capacitor
MURATA
GRM31CR60J227M
220µF
CDU2
Ceramic Capacitor
KEMET
C0603C104K4RACTU
100nF
TE Connectivity
1981584-1
CN2
Micro-USB SMD connector
CN3
2mm Standard tip plug
WIMA
105-0752-001
Red
CN4
2mm Standard tip plug
WIMA
105-0753-001
Black
CN5
Board-to-Board Connector
MOLEX
22.05.2081
8 way / 2.54 mm pitch
NXP
BAS70-07
WURTH
150060RS75000
MONACOR
29.045
DIODES INC.
DMG6968U7
D3
Schottky diodes
DL1
LED
GV
Ammeter PM-2 / +-50UA
Q2
N-Channel MOSFET
R1
Resistor
BOURNS
CR0603FX1501ELF
1,5K ohms
R2
Resistor
BOURNS
CR0603J000ELF
0 ohms
R3
Resistor
PANASONIC
ERJ3EKF3003V
300K ohms
R4
Resistor
PANASONIC
ERA6ARW104V
100K ohms
R5
Resistor
PANASONIC
ERJU06F8200V
820 ohms
R6
optional / not populated
R7
Resistor
PANASONIC
ERA6AEB105V
1M ohms
R8
Resistor
PANASONIC
ERA6AEB103V
10K ohms
R9
Resistor
PANASONIC
ERJ6RQF2R0V
2 ohms
R10
Resistor
PANASONIC
ERJ6ENF20R0V
20 ohms
R11
Resistor
VISHAY
CRCW0805220RFKEA
220 ohms
R12
Resistor
PANASONIC
ERJP03F3000V
300 ohms
RA1
Trimmer 50KOHM, 10%, 12TURN
BOURNS
3224X-1-503E
0-50K ohms
RA2
Trimmer 5MOHM, 10%, 25TURN
BOURNS
3299P-1-505LF
0-5M ohms
RS1
Rotary DIP Switch
C&K
RTE03-10N-04
SW3
SPDT On-On Switch
APEM
TL36W0050
U2
Precision Timer
STMicroelectronics
NE555D
U3
Digital voltmeter
LASCAR
DPM 1AS-BL
LB board
AXIANE
PCB
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Bill of materials
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Table 3. BOM of the EFL1-NFC-PMB board
Ref.
C0,C1
Designation
Supplier
Ref. parts
Value
CAP / optional / not populated
C2,C3,C5,C8
CAP CER 0.1UF 50V 10% X7R
MURATA
GRM155R71H104KE14
100 nF
C4,C6,C9
CAP CER 4.7UF 10V 10% X5R
MURATA
GRM185R61A475KE11
4.7 uF
MURATA
GRM185R61E105KA12
1.0 uF
DIODE SCHOTTKY 40V 200MA
DIODES INC
BAS40LP-7
D6
DIODE ZENER 5.6V 120MW
PANASONIC
DZ2705600L
D8
LED GREEN 54MW 20MA
ROHMS
SML-P11MTT86
IND 2.2UH 600MA 340 MOHM
MURATA
LQM21PN2R2MC0D
2.2 uH
RES SMD 0.0 OHM 1/10W
MURATA
ERJ-2GE0R00X
0 Ohms
RES SMD 20 KOhms 1% 1/10W
MURATA
ERJ-2RKF2002X
20 KOhms
TP5,TP6
CONNECTOR PV external source
SAMTEC
CES-102-01-T-S
2-way / 2.54
mm
TP15,TP16
CONNECTOR OUT power output
SAMTEC
CES-102-01-T-S
2-way / 2.54
mm
TP7 to TP14
CONNECTOR EnFilm load board
SAMTEC
CES-108-01-T-S
8-way / 2.54
mm
C11,C12,C13
C14,C15,C16
CAP / optional / not populated
C7
CAP CER 1UF 25V 10% X5R
D1,D2,D3,
D4,D5,D7
L1,L2
R1,R3,R6
R30
U1
PRINTED COIL NFC ANTENNA
STMicroelectronics
U2
NFC/RFID 4KBIT EEPROM
STMicroelectronics
M24LR04E-RMC6T/2
U3
EnFilm™ Power Management IC
STMicroelectronics
STBC15AQTR
U4
EnFilm™ - rechargeable solid
state lithium thin film battery
STMicroelectronics
EFL700AF39
700μA.h / 3.9
V With Nickel
Foil
CIBEL
SmartPMB v10
FR4, 28x31
mm thickness
= 0.7mm
PCB
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Width=25.7m
mLength=18.
5mm#turns =
9
NFC PMB board
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Revision history
Revision history
Table 4. Document revision history
Date
Revision
Changes
19-Jan-2015
1
Initial release.
20-Aug-2015
2
Updated Figure 1, Figure 2, Figure 3, Figure 4, Figure 6,
Figure 8, Figure 9, Figure 10, Figure 11.
Updated Section 8: Bill of materials and minor text
changes to improve readability.
21-Apr-2016
3
Complete update to add new development
information and to improve readability.
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