Semtech TSWITX-12V-EVM User manual

Evaluation Board User’s Guide
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Wireless Power
12V 2W
EVM User’s Guide
Wearable Wireless Power EVM
User’s Guide
TSWITX-12V-EVM
www.semtech.com

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Wireless Power
12V 2W
EVM User’s Guide
Description
TS51231 is a transmitter driver and output stage for wireless charging applications. It can
support systems up to 5W output. Switching of the TS51231 is controlled by the wireless
power transmitter controller (TS80002 or similar). TS51231 Tx EVM is a transmission
evaluation board for wearable application. All the necessary function components occupy
a 10mmX13mm of PCB area.
The wireless power Rx board should be work together with Tx board. The maximum
output power of Rx EVM is 2W at 5V.
Jumper introduction
1. Tx board is rectangle and Rx board circler;
2. J1 on Tx board is input port and J1 on Rx board output port;
3. Short J2 jumper on Rx board can light LED1 to indicate output voltage, J2 should be
open when conducting efficiency testing;
Operation Instruction
1. Connect 12Vin into J1 of Tx board;
2. On Rx Board, Connect e-load to J1 between VOUT+ and GND;
3. Set the required output current (0A-400mA) with electrical loads in CC mode;
4. place Rx board onto the top of Tx board, aligning to the circular edge; In order to get
the maximum output power and efficiency, Rx board must be located right above the
Tx coil and the space between Tx & Rx coils should be ~4mm.
Efficiency

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EVM User’s Guide
TSWIRX-5V2-EVM on TSWITX-12V-EVM

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Schematic
Figure 1: Schematic
NRST
1
GPIO1
2
GPIO2
3
VSS
4
LDO
5VDD
6
ALERT 7
SDA 8
SCL 9
PWM1_L 10
PWM2_L 11
GPIO3
12
PWM1_H 13
PWM2_H 14
DEBUG
15
V_AC 16
I_DC 17
GPIO4 18
VREF 19
V_DC 20
U1
TS80002
1uF
6.3V
C5
GND
VCC5V
1uF
6.3V
C3
GND
10nF
10V
C4
GND
RESET
DEBUG
VCC5V
RESET
DEBUG SCL
SDA
SW 11
VIN 15
NC 5
GND
8
EN
1
nFLT
4
VDD
7
HSON
6
VIN 16
SCL
3
SDA
2
SW 12
PGND 13
PGND 14
PAD 17
NC 9
BOOT 10
U2
TS51231_1
VCC12V
100nF
25V
C2
22uF
25V
C1
GND
100nF
10V
C7
GND
2.2nF
50V
C6
GND
GNDGND GND
1nF
100V
C9
330K
R7
10K
R8
D1
100nF
25V
C8
CoilFeedback
1K
R9
4.7nF
100V
C10
1K
R11
10K
R10
10K
R12
1nF
10V
C11
GND GND
RX->TXCommunication
100nF
25V
C12
VCC12V
GND
SCL
SDA
DONE
22uF
25V
C17
GND
22nF
25V
C18 2.2nF
50V
C16
NP
C19
22uF
25V
C21
AC1
AC2
SMB_SCL
SMB_SDA
100K
R16
47K
R15
GND
VCC12V
1
2
3
J1
12V IN
1
2
Coil
Tx Coil
DONE
1
2
3
4
J3
Header 4
VCC5V
GND
SMB_SDA
SMB_SCL
1
2
3
4
J2
Header 4
GND

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Wireless Power
12V 2W
EVM User’s Guide
Bill of Materials
Designator Comment Value Value2 Footprint LibRef Quantity
C1, C17, C21 Cap 22uF 25V CAPC0805L Cap Pol 3
C2, C12 Cap 100nF 25V CAPC0402L Cap 2
C3, C5 Cap 1uF 6.3V CAPC0402L Cap Pol 2
C4 Cap 10nF 10V CAPC0402L Cap 1
C6, C16 Cap C0G 2.2nF 50V CAPC0805L Cap 2
C7, C8 Cap 100nF 25V CAPC0402L Cap 2
C9 Cap X7R 1nF 100V CAPC0603L Cap 1
C10 Cap X7R 4.7nF 100V CAPC0603L Cap 1
C11 Cap 1nF 25V CAPC0402L Cap 1
C18 Cap 22nF 25V CAPC0402L Cap 1
C19 Cap C0G NP CAPC0603L Cap 1
Coil
Y31-60182F,
WT292965-12K2-
TS OD 29mm 1
D1 1SS400T1G 200V SOD523-L Diode 1
J1 12V IN SIP3A
CON3,
2.54mm,1*3p 1
R7 Res 330K RESC0402L Res 1
R9 Res 1K RESC0603L Res 1
R11 Res 1K RESC0402L Res 1
R10, R12,R8 Res 10K RESC0402L Res 2
R15 Res 47K RESC0402L Res 1
R16 Res 100K RESC0402L Res 1
U1 TS80002 UFQFPN50P300X300-20VN TS80002-QFN 1
U2 TS51231 QFN50P300X300-16V6-165N TS51231 1

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Wireless Power
12V 2W
EVM User’s Guide
EVB Layout layers
Figure 2: Silk screen top layer
Figure 3: Mechanical13 layer

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12V 2W
EVM User’s Guide
Figure 4: Top layer
Figure 5: Ground layer

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Wireless Power
12V 2W
EVM User’s Guide
Figure 6: Signal layer
Figure 7: Bottom layer

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Wireless Power
12V 2W
EVM User’s Guide
All Design files for this EVB are available. Please call Semtech.

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