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1
DEMO MANUAL DC2770A-A-KIT
Rev. 0
DESCRIPTION
LTC4124/LTC4125, 50mA Wireless Li-Ion Charger Demonstration Kit
DC2770A-A-KIT is a kit of the DC2773A-A transmitter board (featuring LTC®4125) and the DC2775A-C (fea-turing LTC®4124). The DC2775A-C receiver board can charge a single Li-Ion battery at up to 50 mA with an air gap of 3.0 mm to 5.0 mm between the transmit and All registered trademarks and trademarks are the property of their respective owners.
PERFORMANCE SUMMARY
CONTENTS
BOARD PHOTO
receive coils. The DC2773A-A transmitter board supports Foreign Object Detection via the LTC4125.
Design files for this circuit board are available.
Figure 1. DC2773A-A Picture Figure 2. DC2775A-C Picture
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN DC2773A-A Voltage Input IVIN ≤ 500mA 4.5 5.5 V
IIN DC2773A-A VIN Current VIN = 5V 500 mA
VBAT DC2775A-C Battery Charge Voltage VSEL1 = HI, VSEL2 = HI 4.35 V
VSEL1 = HI, VSEL2 = LO 4.20 V
VSEL1 = LO, VSEL2 = HI 4.1 V
VSEL1 = LO, VSEL2 = LO 4.00 V
IBAT DC2775A-C Charge Current VBAT = 4.0V, ISEL1 = VCC, ISEL2 = GND 50 mA
AIR-GAP Separation Between LTX and LRX Coils 3 3.5 5 mm
fTX_TANK DC2773A-A Resonant Tank Frequency 200 kHz
fRX_TANK DC2775A-C Resonant Tank Frequency 200 kHz
1 × DC2773A-A (LTC4125) Transmitter Demo Board
1 × DC2775A-C (LTC4124) Receiver Demo Board
2
DEMO MANUAL DC2770A-A-KIT
Rev. 0
QUICK START PROCEDURERefer to Figures 3, 4, and 5 for the proper measurement equipment setup, DC2775A-C mounting on DC2773A-A, and follow the procedure below:
NOTE: When measuring the input or output voltage ripple, care must be taken to avoid a long ground lead on the oscilloscope probe. Measure the input or output voltage ripple by touching the probe tip directly across the signal and GND terminals. See Figure 6 for proper scope probe technique.
1. Place the DC2775A-C board atop the DC2773A-A board by aligning the mounting holes and screws on both boards. Make sure the air-gap between two coils is at about 3.5mm.
2. The default battery charge voltage is 4.2V and the charging current is 50mA. Battery charge voltage, charge current, pre-charge feature and low battery disconnect voltage can be programmed by jumpers on the DC2775A-C board.
3. Connect a voltage source PS1 and a 20 Ohm resis-tor RBAT1 between the BAT and GND turrets of DC2775A-C, respectively (Figure 4). PS1 and RBAT1 make up the battery emulator. Typical power supplies cannot sink current. By adding a resistor across the power supply inputs that draws more current than the
maximum battery charging current, the power supply only sources current even when the battery charge cur-rent is at its maximum value.
4. Connect an ammeter AM1 between PS1 and the DC2775A-C BAT turret. Connect a voltage meter VM1between DC2775A-C BAT and GND turrets.
5. Connect a power supply (PS2) between DC2773A-A VIN turret and GND turret. DC2773A-A can also be pow-ered through Micro-USB cable to a 5V power source.
6. Set PS1 = 3.7V, PS2 = 5V and enable both power supplies simultaneously. The DC2773A-A.D5 green LED should be turned on, indicating the transmitter is working properly. Note that current indicators on DC2773A-A.D6-D13 does not reflect the real input cur-rent in this version. It simply indicates a valid receiver is found.
7. The DC2775A-C. D1 should be turned on, indicating power is delivered to the load. Observe AM1. AM1 should be reading 50mA of charge current into the battery emulator when the battery charger is in con-stant current mode. Compare VM1 voltage with battery charge voltage setting to make sure the battery charger is in constant current mode.
8. When test is done, turn off PS1 and PS2 simultaneously.
Figure 3. DC2770A-A-KIT in Operation
3
DEMO MANUAL DC2770A-A-KIT
Rev. 0
TEST SETUP
Figure 4. DC2775A-C Top
Figure 5. DC2773A-A Top
+ –
+
–
AM1
Battery Emulator
VM1RBAT120�
PS13.7V DC
0.5A
PS24.5–5.5V Supply
0.5A
+
–
4
DEMO MANUAL DC2770A-A-KIT
Rev. 0
TEST SETUP
Figure 6. Measuring Input or Output Ripple
NOTE: All connections from equipment should be Kelvin connected directly to the board pins which they are connected on this diagram and any input or output leads should be twisted pair.
5
DEMO MANUAL DC2770A-A-KIT
Rev. 0
THEORY OF OPERATIONThe DC2770A-A-KIT demonstrates operation of a mag-netically coupled resonant Wireless Power Transfer (WPT) system. The LTC4125 transmitter provides efficient wire-less power for the LTC4124 receiver to charge the Li-Ion battery.
DC2773A-A – Wireless Power Transmitter Board featuring the LTC4125
The LTC4125 implements an AutoResonant drive of the series resonant transmit tank composed of the transmit coil LTX, and the transmit capacitor CTX. The AutoReso-nant driver uses a zero-crossing detector to determine the resonant frequency of the tank. All sub-sequent duty cycles discussed here use the resonant period determined by the AutoResonant circuitry.
The SW1 and SW2 pins each have a half bridge driver. At zero current crossing, whichever SWX pin has positive going current, is set to VIN for a duty cycle determined by the corresponding PTHX pin. When the SWX pin is set to VIN, it increases the current flowing in the transmitter resonant tank. The absolute value of the tank current is determined by the resonant tank components and also by the reflected load impedance.
VIN
IL VL
Figure 7. AutoResonant LC Tank Voltage and Current Waveforms with Square Wave Input at less than 50% Duty Cycle
The LTC4125 also features optimum power search algo-rithm. However, it is not implemented in this demo kit. To check the operation details of optimum power search, please refer to DC2770A-B-KIT demo manual.
In this demo kit, a 1V voltage reference ADR510 is placed between IMON pin and GND. In this way, the exit condition of the search algorithm is always triggered. As a result,
the duty cycle remains almost constant in the operation, regardless of the change in load current or air gap dis-tance. The duty cycle of the two half bridge drivers is pre-defined by PTHM resistors R4 and R8.
The FB pin is driven by the node forming the junction of the transmit coil LTX, and the transmit capacitor CTX. The voltage at this node is proportional to the circulating current in the transmitter resonant tank.
If the receiver is removed from the transmitter, resonant tank current will rise significantly. The FB pin captures the rise of resonant current and terminates both half bridge drivers. As a result, the transmit power is reduced to standby mode.
If metal foreign objects are inserted between the trans-mit coil and the receive coil, the resonant frequency will increase significantly. The LTC4125 captures the rise of resonant frequency and reduces the transmit power to standby mode.
In standby mode, the LTC4125 will look for a valid receiver every 5s. If a valid receiver is found, the power transfer is resumed.
The LTC4125 uses an NTC resistor to monitor the tem-perature of the LTX and shut off the transmit power if the NTC reports a temperature higher than approximately 42°C. Please see the applications section of the data sheet for more detailed information.
DC2775A-C – Wireless Power Receiver Board featuring the LTC4124
The DC2775A-C demo board implements a parallel res-onant LC circuit that connects the LTC4124 between ACIN and GND pins. The AC waveform on the resonant circuit is rectified by the internal wireless power manager circuit to DC voltage on VCC pin. This DC source is then fed into the internal linear battery charger to charge a Li-Ion battery.
As shown in Figure 8, when the LTC4124 receives more energy than it needs to charge the battery, the wireless power manager in the IC keeps the input voltage to the IC ( at VCC Pin) low by shunting the receiver resonant
6
DEMO MANUAL DC2770A-A-KIT
Rev. 0
THEORY OF OPERATIONtank to ground. In this way, the linear charger is highly efficient as its input is always kept just above the battery voltage, VBAT.
The LTC4124 includes a full featured CC/CV (Constant Current/Constant Voltage) linear battery charger with trickle current pre-charge, safety timer termination, bad battery detection, temperature qualified safe charging and automatic recharge. The maximum charge current sup-ported by DC2775A-C is 50mA and the charge voltage is programmable by VSELX jumpers.
VCC2V/DIV
VACIN2V/DIV
VBAT2V/DIV
Figure 8. Rectification of AC Input and Regulation of VCC
7
DEMO MANUAL DC2770A-A-KIT
Rev. 0
PARTS LISTITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER
DC2773A-A: Required Circuit Components
1 3 C1, C2, C3 CAP., 100uF, X5R, 6.3V, 10%, 1206 MURATA, GRM31CR60J107KE39L
2 1 C4 CAP., 0.01uF, X7R, 50V, 10%, 0402 KEMET, C0402C103K5RAC7867
3 1 C5 CAP., 0.01uF, X7R, 25V, 10%, 0402, AEC-Q200 MURATA, GCM155R71E103KA37D
4 1 C6 CAP., 4700pF, X7R, 50V, 10%, 0402 AVX, 04025C472KAT2A
5 1 C7 CAP., 680pF, C0G, 25V, 5%, 0402 KEMET, C0402C681J3GACTU
6 1 C8 CAP., 0.1uF, X7R, 50V, 10%, 0402 AVX, 04025C104KAT2A
7 1 C9 CAP., 0.1uF, X7R, 100V, 10%, 0603 AVX, 06031C104KAT2A
8 1 C10 CAP., 1uF, X5R, 16V, 10%, 0402 AVX, 0402YD105KAT2A
9 2 C11, C12 CAP., 47uF, X5R, 6.3V, 20%, 0805 SAMSUNG, CL21A476MQYNNNE
10 1 CRx1 CAP., 0.068uF, C0G, 50V, 5%, 1206, AEC-Q200 MURATA, GCM31C5C1H683JA16L
11 1 CRx2 CAP., 0.022uF, C0G, 50V, 5%, 1206, AEC-Q200 KEMET, C1206C223J5GACAUTO
12 1 D3 DIODE, SCHOTTKY, 70V, 70mA, 0402/SOD-923F COMCHIP, CDBQR70
13 1 D4 DIODE, SWITCHING, 300V, 250mA, SOD-523 DIODES INC., BAS521-7
14 1 D5 LED, GREEN, WATER CLEAR, 0603 LITE-ON, LTST-C190KGKT
15 1 LTx1 IND., 6.8uH, WIRELESS CHRG. COIL, TX., 10%, 2.5A, 125mOHMS, 20.5mm Dia x 2.6mm H, 1 COIL, 1 LAYER
WURTH ELEKTRONIK, 760308101104
16 1 NTC1 RES., 10k OHMS, 1%, NTC THERMISTOR MURATA, FTN55XH103FD4B
17 1 Q2 IC VREF SHUNT 1V SOT23-3 ANALOG DEVICES, INC., ADR510ARTZ#PBF
18 2 R1, R17 RES., 2.2k OHMS, 5%, 1/16W, 0402, AEC-Q200 VISHAY, CRCW04022K20JNED
19 1 R2 RES., 0.22 OHMS, 1W, 1206, AEC-Q200 WIDE TERMINAL
PANASONIC, ERJB2BFR22V
20 1 R3 RES., 348 OHMS, 1%, 1/16W, 0402 VISHAY, CRCW0402348RFKED
21 2 R4, R5 RES., 100k OHMS, 1%, 1/16W, 0402, AEC-Q200 VISHAY, CRCW0402100KFKED
22 1 R6 RES., 3.24k OHMS, 1%, 1/10W, 0402 PANASONIC, ERJ2RKF3241X
23 1 R8 RES., 13.3k OHMS, 1%, 1/16W, 0402, AEC-Q200 VISHAY, CRCW040213K3FKED
24 2 R10, R14 RES., 100k OHMS, 1%, 1/10W, 0402, AEC-Q200 PANASONIC, ERJ2RKF1003X
25 1 R12 RES., 102k OHMS, 1%, 1/16W, 0402, AEC-Q200 STACKPOLE ELECTRONICS, INC., RMCF0402FT102K
26 1 R15 RES., 22.1K OHMS, 1%, 1/16W, 0402, THICK FILM, AEC-Q200
VISHAY, CRCW040222K1FKEDC
27 1 R16 RES., 100k OHMS, 1%, 1/10W, 0603, 350V, AEC-Q200
ROHM, KTR03EZPF1003
28 1 R18 RES., 10k OHMS, 5%, 1/16W, 0402 YAGEO, RC0402JR-0710KL
29 1 R43 RES., 1 OHM, 5%, 1/10W, 0603, AEC-Q200 PANASONIC, ERJ3GEYJ1R0V
30 1 U1 IC, 5W Wireless Power Transmitter, QFN-20 (4x5), AutoResonant
ANALOG DEVICES, LTC4125EUFD#PBF
Additional Circuit Components
1 3 C13, C15, C16 CAP., 0.01uF, X7R, 50V, 10%, 0402 KEMET, C0402C103K5RAC7867
2 2 C14, C17 CAP., 1uF, X5R, 16V, 10%, 0402 AVX, 0402YD105KAT2A
3 1 D1 LED, RED, WATER-CLEAR, 0603 LITE-ON, LTST-C193KRKT-5A
4 7 D6-D12 LED, BLUE, WATER CLEAR, 0603 LUMEX, SML-LXFP0603USBCTR
5 1 R41 RES., 2.2k OHMS, 5%, 1/16W, 0402, AEC-Q200 VISHAY, CRCW04022K20JNED
8
DEMO MANUAL DC2770A-A-KIT
Rev. 0
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER
6 2 R13, R45 RES., 0 OHM, 1/16W, 0402 NIC, NRC04ZOTRF
7 1 R19 RES., 10k OHMS, 5%, 1/16W, 0402 YAGEO, RC0402JR-0710KL
8 2 R20, R33 RES., 430 OHMS, 5%, 1/16W, 0402 YAGEO, RC0402JR-07430RL
9 1 R21 RES., 15.4k OHMS, 1%, 1/16W, 0402, AEC-Q200 KOA SPEER, RK73H1ETTP1542F
10 1 R22 RES., 27.4k OHMS, 1%, 1/16W, 0402, AEC-Q200 VISHAY, CRCW040227K4FKED
11 1 R23 RES., 511k OHMS, 1%, 1/16W, 0402, AEC-Q200 VISHAY, CRCW0402511KFKED
12 7 R24-R30 RES., 75k OHMS, 1%, 1/16W, 0402 VISHAY, CRCW040275K0FKED
13 1 R31 RES., 11.3k OHMS, 1%, 1/16W, 0402, AEC-Q200 VISHAY, CRCW040211K3FKED
14 1 R32 RES., 787k OHMS, 1%, 1/16W, 0402 NIC, NRC04F7873TRF
15 7 R34-R40 RES., 6.2k OHMS, 1%, 1/16W, 0402 YAGEO, RC0402FR-076K2L
16 1 R45 RES., 0 OHM, 1/16W, 0402 ROHM, MCR01MZPJ000
17 2 U2, U3 IC, QUAD COMPARATOR LP 1.221VREF, DFN-16 (5x4)
ANALOG DEVICES, LTC1445CDHD#PBF
Hardware: For Demo Board Only
1 3 E1, E4, E5 TEST POINT, TURRET, 0.094" MTG. HOLE, PCB 0.062" THICK
MILL-MAX, 2501-2-00-80-00-00-07-0
2 2 E2, E3 CONN., BANANA JACK, FEMALE, THT, NON-INSULATED, SWAGE, 0.218"
KEYSTONE, 575-4
3 1 J1 CONN., MICRO USB-B, RCPT., FEMALE, 5-PIN, HORZ. R/A SMT
WURTH ELEKTRONIK, 629105136821
4 2 JP1, JP2 CONN., HDR., MALE, 1x3, 2mm, THT, STR, NO SUBS. ALLOWED
SAMTEC, TMM-103-02-L-S
5 6 MP1, MP2, MP5-MP7, MP10
STANDOFF, NYLON, SNAP-ON, 0.50" WURTH ELEKTRONIK, 702935000
6 1 NTC ASSEMBLY_1 CONN., JSC COAXIAL SOCKET, RCPT., FEMALE, SMD, 1PORT, I/O TERM.
MURATA, MM5831-2700RB
7 2 XJP1, XJP3 CONN., SHUNT, FEMALE, 2 POS, 2mm WURTH ELEKTRONIK, 60800213421
DC2775A-C: Required Circuit Components
1 1 C3 CAP., 10uF, X5R, 6.3V, 20%, 0603 MURATA, GRM188R60J106ME47D
2 1 CRx2 CAP., 0.047uF, C0G, 25V, 5%, 0805, AEC-Q200 C0805C473J3GACAUTO
4 1 LRx1 IND., 12.6uH, WIRELESS CHRG. COIL RX Qi, 10%, 1.1A, 340mOHMS, 17mm Dia x 0.8mm H, 1 COIL, 1 LAYER
WURTH ELEKTRONIK, 760308101220
5 1 R2 RES., 0 OHM, 5%, 1/16W, 0402 ROHM, MCR01MZPJ000
6 1 RT1 RES., 100k OHMS, 1%, 0201, NTC THERMISTOR TDK, NTCG064EF104FTBX
Additional Circuit Components
1 1 D1 LED, RED, WATER CLEAR, 0201 KINGBRIGHT, APG0603SEC-E-TT
Hardware: For Demo Board Only
1 10 E1-E10 TEST POINT, TURRET, 0.064" MTG. HOLE, PCB 0.062" THICK
MILL-MAX, 2308-2-00-80-00-00-07-0
2 8 JP1-JP8 CONN., HDR, MALE, 1x3, 2mm, VERT, STR, THT WURTH ELEKTRONIK, 62000311121
3 8 XJP1-XJP8 CONN., SHUNT, FEMALE, 2 POS, 2mm WURTH ELEKTRONIK, 60800213421
9
DEMO MANUAL DC2770A-A-KIT
Rev. 0
SCHEMATIC DIAGRAM4 4
3 3
2 2
1 1
44
33
22
11
UNLE
SS N
OTED
:RE
SIST
ORS:
OHM
S, 04
02, 1
%, 1/
16W
CAPA
CITO
RS: u
F, 04
02, 1
0%, 5
0V
4.75 -
5.25
V
STAT
US
DIS ENEN
OPT
0.5A
OPT
REVI
SION
HIS
TORY
ECO
DESC
RIPT
ION
REV
DATE
APPR
OVED
-PR
ODUC
TION
06-1
1-19
WL
VSUP
VSUP GN
D
GND
GND
*
*
*
*
*
*
*
SEE
TABL
E*
*
*
*
**
01
DNP
037
.4k
0.01u
F0.2
2 ohm
sAD
R510
ARTZ
Q2R1
4C5
Q1
0.047
ohms
DNP
100k
13.3k
R15
R3
22.1k
R44
0
R46
R13
R45
348
DNP
PMBT
3904
M,31
6DN
P0
DNP
R2
0.68u
F
R8
1.33k
VERS
ION
TABL
E*
100m
A-BSKU#
50mA
-A
Char
ge C
urre
nt
DNP
20k
0
0
VIN
IMON
DATE
:
IC N
O.
SHEE
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A 95
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Fax:
(408
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alog.c
om
Phon
e: (4
08)4
32-1
900
ANAL
OG16
30 M
cCar
thy
Blvd
.
AHEA
D OF
WHA
T'S P
OSSI
BLE
12
NC
LTC4125
50m
A/10
0mA
AUTO
RESO
NANT
WIR
ELES
S TR
ANSM
ITTE
R70
0-DC2
773A
_REV
02710-DC2773A_REV01
705-D
C277
3A_R
EV01
N/A
06-1
1-19
WL
DATE
:
IC N
O.
SHEE
TOF
TITL
E: D
EMO
CIRC
UIT
SCHE
MAT
IC,
APPR
OVAL
SPC
B DE
S.
APP
ENG.
CUST
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ICE
ANAL
OG D
EVIC
ES H
AS M
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DES
IGN
ACI
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R-SU
PPLI
ED S
PECI
FICA
TION
S;HO
WEV
ER, IT
REM
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THE
CUS
TOME
R'S
RESP
ONSI
BILI
TY T
OVE
RIFY
PRO
PER
AND
RELI
ABLE
OPE
RATI
ON IN
THE
ACT
UAL
APPL
ICAT
ION.
COM
PONE
NT S
UBST
ITUT
ION
AND
PRIN
TED
CIRC
UIT
BOAR
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NIFI
CANT
LY A
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RCUI
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MANC
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. CON
TACT
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TECH
NOLO
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ONS
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ING
FOR
ASSI
STAN
CE.
THIS
CIR
CUIT
IS P
ROPR
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RY T
O AN
ALO
DEVI
CES
AND
SUPP
LIED
FOR
USE
WIT
H AN
ALOG
DEV
ICE
PART
S.SC
ALE
= NON
ESI
ZE:
SKU
NO.
SCHE
MAT
IC N
O. A
ND R
EVIS
ION:
PCA
BOM:
PCA
ASS'
Y:
TMDE
VICE
SM
ilpita
s, C
A 95
035
Fax:
(408
)434
-050
7ww
w.an
alog.c
om
Phon
e: (4
08)4
32-1
900
ANAL
OG16
30 M
cCar
thy
Blvd
.
AHEA
D OF
WHA
T'S P
OSSI
BLE
12
NC
LTC4125
50m
A/10
0mA
AUTO
RESO
NANT
WIR
ELES
S TR
ANSM
ITTE
R70
0-DC2
773A
_REV
02710-DC2773A_REV01
705-D
C277
3A_R
EV01
N/A
06-1
1-19
WL
DATE
:
IC N
O.
SHEE
TOF
TITL
E: D
EMO
CIRC
UIT
SCHE
MAT
IC,
APPR
OVAL
SPC
B DE
S.
APP
ENG.
CUST
OMER
NOT
ICE
ANAL
OG D
EVIC
ES H
AS M
ADE
A BE
ST E
FFOR
T TO
DES
IGN
ACI
RCUI
T TH
AT M
EETS
CUS
TOME
R-SU
PPLI
ED S
PECI
FICA
TION
S;HO
WEV
ER, IT
REM
AINS
THE
CUS
TOME
R'S
RESP
ONSI
BILI
TY T
OVE
RIFY
PRO
PER
AND
RELI
ABLE
OPE
RATI
ON IN
THE
ACT
UAL
APPL
ICAT
ION.
COM
PONE
NT S
UBST
ITUT
ION
AND
PRIN
TED
CIRC
UIT
BOAR
D LA
YOUT
MAY
SIG
NIFI
CANT
LY A
FFEC
T CI
RCUI
TPE
RFOR
MANC
E OR
REL
IABI
LITY
. CON
TACT
LIN
EAR
TECH
NOLO
GY A
PPLI
CATI
ONS
ENGI
NEER
ING
FOR
ASSI
STAN
CE.
THIS
CIR
CUIT
IS P
ROPR
IETA
RY T
O AN
ALO
DEVI
CES
AND
SUPP
LIED
FOR
USE
WIT
H AN
ALOG
DEV
ICE
PART
S.SC
ALE
= NON
ESI
ZE:
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DEMO MANUAL DC2770A-A-KIT
Rev. 0
SCHEMATIC DIAGRAM4 4
3 3
2 2
1 1
44
33
22
11
INPU
T CU
RREN
T
1.221
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ANAL
OG16
30 M
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thy
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30 M
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V01
11
DEMO MANUAL DC2770A-A-KIT
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
SCHEMATIC DIAGRAM
VCC
ACIN
GND
GND
DCIN
BAT
REVI
SION
HIS
TORY
ECO
REV
DESC
RIPT
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APPR
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-2
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SS N
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SIST
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02, 1
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201,
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CHRG
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GND
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TABL
E
SEE
TABL
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HI LO
HIHI
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CHRG
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EN DIS
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0402
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1 HIHI
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06-1
1-19
VCC
VCC
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VCC
VCC
VCC
VCC
VCC
DATE
:
IC N
O.
SHEE
TOF
TITL
E: D
EMO
CIRC
UIT
SCHE
MAT
IC,
APPR
OVAL
SPC
B DE
S.
APP
ENG.
CUST
OMER
NOT
ICE
ANAL
OG D
EVIC
ES H
AS M
ADE
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ST E
FFOR
T TO
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T TH
AT M
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ED S
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ER, IT
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R'S
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ONSI
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TY T
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ON IN
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STAN
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CIR
CUIT
IS P
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O AN
ALO
DEVI
CES
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LIED
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USE
WIT
H AN
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PART
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ALE
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NO.
SCHE
MAT
IC N
O. A
ND R
EVIS
ION:
PCA
BOM:
PCA
ASS'
Y:
TMDE
VICE
SM
ilpita
s, C
A 95
035
Fax:
(408
)434
-050
7ww
w.an
alog.c
om
Phon
e: (4
08)4
32-1
900
ANAL
OG16
30 M
cCar
thy
Blvd
.
AHEA
D OF
WHA
T'S P
OSSI
BLE
11
NC
LTC4124
700-
DC27
75A_
REV0
2710-DC2775A_REV02
705-
DC27
75A_
REV0
2N/
A06
-11-
19
WL
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TOF
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CIRC
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MAT
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TMDE
VICE
SM
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s, C
A 95
035
Fax:
(408
)434
-050
7ww
w.an
alog.c
om
Phon
e: (4
08)4
32-1
900
ANAL
OG16
30 M
cCar
thy
Blvd
.
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D OF
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T'S P
OSSI
BLE
11
NC
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DC27
75A_
REV0
2710-DC2775A_REV02
705-
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75A_
REV0
2N/
A06
-11-
19
WL
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SHEE
TOF
TITL
E: D
EMO
CIRC
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MAT
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OVAL
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DEMO MANUAL DC2770A-A-KIT
Rev. 0
ANALOG DEVICES, INC. 2019
10/19www.analog.com
ESD Caution ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality.
Legal Terms and Conditions By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you have read and agreed to the Agreement. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you (“Customer”) and Analog Devices, Inc. (“ADI”), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal, temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and agrees that the Evaluation Board is provided for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the license granted is expressly made subject to the following additional limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term “Third Party” includes any entity other than ADI, Customer, their employees, affiliates and in-house consultants. The Evaluation Board is NOT sold to Customer; all rights not expressly granted herein, including ownership of the Evaluation Board, are reserved by ADI. CONFIDENTIALITY. This Agreement and the Evaluation Board shall all be considered the confidential and proprietary information of ADI. Customer may not disclose or transfer any portion of the Evaluation Board to any other party for any reason. Upon discontinuation of use of the Evaluation Board or termination of this Agreement, Customer agrees to promptly return the Evaluation Board to ADI. ADDITIONAL RESTRICTIONS. Customer may not disassemble, decompile or reverse engineer chips on the Evaluation Board. Customer shall inform ADI of any occurred damages or any modifications or alterations it makes to the Evaluation Board, including but not limited to soldering or any other activity that affects the material content of the Evaluation Board. Modifications to the Evaluation Board must comply with applicable law, including but not limited to the RoHS Directive. TERMINATION. ADI may terminate this Agreement at any time upon giving written notice to Customer. Customer agrees to return to ADI the Evaluation Board at that time. LIMITATION OF LIABILITY. THE EVALUATION BOARD PROVIDED HEREUNDER IS PROVIDED “AS IS” AND ADI MAKES NO WARRANTIES OR REPRESENTATIONS OF ANY KIND WITH RESPECT TO IT. ADI SPECIFICALLY DISCLAIMS ANY REPRESENTATIONS, ENDORSEMENTS, GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, RELATED TO THE EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS. IN NO EVENT WILL ADI AND ITS LICENSORS BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES RESULTING FROM CUSTOMER’S POSSESSION OR USE OF THE EVALUATION BOARD, INCLUDING BUT NOT LIMITED TO LOST PROFITS, DELAY COSTS, LABOR COSTS OR LOSS OF GOODWILL. ADI’S TOTAL LIABILITY FROM ANY AND ALL CAUSES SHALL BE LIMITED TO THE AMOUNT OF ONE HUNDRED US DOLLARS ($100.00). EXPORT. Customer agrees that it will not directly or indirectly export the Evaluation Board to another country, and that it will comply with all applicable United States federal laws and regulations relating to exports. GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the substantive laws of the Commonwealth of Massachusetts (excluding conflict of law rules). Any legal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby submits to the personal jurisdiction and venue of such courts. The United Nations Convention on Contracts for the International Sale of Goods shall not apply to this Agreement and is expressly disclaimed.