Panasonic NN32251A User manual

NN32251A
Page 1 of 7
Evaluation Board User’s Guide
Integrated wireless power transmitter controller
WPC Ver. 1.1 ready
MCU embedded
Half-bridge gate driver ：4ch
(full-bridge gate driver ：2ch also configurable)
Single-coil (Type A11) supported
Expanded free positioning using multi-coils up to 4 coils
(Type A6)
Highly accurate voltage and current monitor for inverters
Output controlled by frequency or duty, defined in Qi.
ASK demodulation for both current and voltage signals
(Qi compliant)
Input voltage range : VADP, VINV : 4.6 to 19.5V
Supports Under Voltage Lockout , Thermal Shutdown,
Over Current Detection
Short-circuit protection at inverter output
Temperature Detecting Circuit ：3ch
LED indicator ：2ch
package ：64 pins HQFP
(size : 12mm 12mm)
NN32251A is a wireless power system controller IC
which is compliant with Qi version 1.1 of the System
Description Wireless Power Transfer, Volume 1 for Low
Power, defined by Wireless Power Consortium.
NN32251A is a controller IC of a power transmitter (Tx)
which can supply power to any Qi-compliant wireless
chargers.
http://www.semicon.panasonic.co.jp/en/
FEATURES DESCRIPTION
Wireless Power System
Cp
TX
Coil
Wireless Power
Communication
Tx Inverter
VIN
Transmitter (Tx)
NN32251A Cd
AN32258A
IOUT
Control
Cs
IC
RX
Coil
Rectifier
VRECT Charger
+
OUT
Receiver (Rx)
Co
INTEGRATED WIRELESS POWER SUPPLY TRANSMITTER,
Qi (WIRELESS POWER CONSORTIUM) COMPLIANT
- Evaluation Board User’s Guide (A11 type) -
・WPC-compliant wireless charger
NN32251A is designed to be used based on
the circuits and external components described
in this document .
Therefore, Panasonic cannot support any inquiries of
modified solution.
APPLICATIONS
IMPORTANT

NN32251A
Page 2 of 7
Evaluation Board User’s Guide
C3
3300pF C4
1000pF C5
68000pF
C20
2200pF
LDO41V
C8
1uF
C7
1000pF
C6
2200pF
TH1
TH2
TH3
CSIN1
CSIN2
VMODIN
VFIL1
VFIL2
LDO18V
CFIL1
CFIL2
GNDA1
GNDP2
GNDMOD
CSOUT
CMODIN
R6
R13 R18 R19
22
1
24
18
19
23
25
26
27
28
29
30
42
31
Current Sense Resistor
D3
L2
A11
(0.1uF*4)
Q5
Q7
R2 1k
C19
0.01uF
R3 10k
R4
25m
C24
10uF C42
10uF
PD1H
PD1 L
PD2H
PD2L PD3L
PD3H
PD4L
PD4H
SCDET1 SCDET2 SCDET3 SCDET4
VINV
HG1
LG1
HG2
LG2
C18
C28
C29
C50
48 46 45 47 44 43 36 40 39 35 38 37 41 55 53 51 49
Power Supply (5.0V)
R9
560 R10
560
D2 D1
VADP
LED1
LED2
VREF
LDO41V
GNDP1
TEST
LDO33V
VFIL3
VFIL4
PLLFIL
CFB1
CFB2
VFB
C9
1uF
C10
4.7uF
C11
1uF
C12
3900pF
C13
1000pF
C14
3300pF
C15
10uF C16
0.01uF
C23
10uF
64
17
59
58
34
16
33
32
50
54
52
61
56
LDO33V
TYP 1 GNDMC SMBD
MODE
GNDA3 SMBC
SELLED2
NCO1 NCO2
PWR
SELFOD1 SELFOD2
FWMD
TEST2
ENB TEST4
60 15
6 5 4 2 3
62 63 13
12 10
8 7
14
NN32251A
IC1
R51
0
R50
LDO41V
R32
1k LDO33V
R31
1k LDO33V
R33
0
9
SDA SCL
R34
LDO41V
R49
0
R48
LDO41V
11
R47
0
R46
LDO41V
R30
100k FWMD
LDO41V1
LDO41V
R40
2
R41
20
C53
C52
R42
2
R43
20
C56
1000p
C55
VADP
57
R44
100k
TH1
C60
TH1A
TH1B
LDO41V
R8
R11 R16 R17
TH2
C61
TH2A
TH2B
LDO41V
R12
R7 R14 R15
TH3
C62
TH3A
TH3B
20
21
R52
0
L10
R54
0 LDO41V
R53
R62
0
R61
LDO41V
R60
0
R59
LDO41V
R57
0
R58 LDO41V
R56
0
R55
LDO41V
SELLED1
1. EVB Circuit Diagram
EVB (for Qi Type A11) Information
C73
0.1uF C74
0.1uF
FGND
Q6
Q8
L2A L1A
C54
1000p
C71
22n
C72
22n
R73 0
LDO33V
R72 0
LDO33V
R71 0
LDO33V

NN32251A
Page 3 of 7
Evaluation Board User’s Guide
EVB (for Qi Type A11) Information (Continued)
2. Bill of Materials
Category Parts No. Name Manufacture Value Rating Size
(JIS or PKG) T(max)
mm Qty
IC IC1 NN32251A Panasonic - - 12.0 x 12.0 1.2 1
Coil L2 CEBO-RA2D22A CHEMTRONICS - - - - 1
Capacitor
C18,C28,
C29,C50 C4532C0G2E104J320KN TDK 0.1uF 250V 4.5 x 3.2 3.2 3
C3, C14 GRM188B11E332KA01 MURATA 3300pF 25V 1.6 x 0.8 0.8 2
C4, C7, C13,
C54, C56 GRM188B11E102KA01 MURATA 1000pF 25V 1.6 x 0.8 0.8 5
C6 GRM188B11E222KA01 MURATA 2200pF 25V 1.6 x 0.8 0.8 1
C12 GRM188B11E392KA01 MURATA 3900pF 25V 1.6 x 0.8 0.8 1
C5 GRM188B11E683KA01 MURATA 68000pF 25V 1.6 x 0.8 0.8 1
C16 GRM188B11H103KA01 MURATA 0.01uF 50V 1.6 x 0.8 0.8 1
C8, C9, C11 GRM188B31E105KA75 MURATA 1uF 25V 1.6 x 0.8 0.8 3
C19 GRM188R72A103KA01 MURATA 0.01uF 100V 1.6 x 0.8 0.8 1
C20 GRM188R72D222KW07D MURATA 2200pF 200V 1.6 x 0.8 0.8 1
C15,C23,
C24,C42 UMK325AB7106MM-T TAIYO YUDEN 10uF 50V 3.2 x 2.5 2.5 4
C10 GRM21BB31E475KA75 MURATA 4.7uF 25V 2.1 x1.25 1.25 1
C71, C72 GRM319R71H223JA01 MURATA 22nF 50V 3.2 x 1.6 0.95 2
C73, C74 GRM188R71H104KA93 MURATA 0.1uF 50V 1.6 x 0.8 0.8 2
Resistor
R2, R31,
R32 ERJ3EKF1001V Panasonic 1K 1％1.6 x 0.8 0.55 3
R3 ERJ3EKF1002V Panasonic 10K 1％1.6 x 0.8 0.55 1
R4 ERJ8BWFR025 Panasonic 25m 1％3.2 x 1.6 0.75 1
R9,R10 ERJ3EKF5600U Panasonic 560 1％1.6 ｘ0.8 0.55 2
R30, R44 ERJ3EKF1003V Panasonic 100K 1％1.6 x 0.8 0.55 2
R40, R42 ERJ3GEYJ2R0V Panasonic 2 5% 1.6 x 0.8 0.55 2
R41, R43 ERJ3GEYJ200V Panasonic 20 5% 1.6 x 0.8 0.55 2
R33,R47,
R49,R51,
R52,R54,
R56,R57,
R60,R62,
R71,R72,
R73
ERJ3GEY0R00V Panasonic 0 - 1.6 x 0.8 0.55 13
Pch-MOSFET Q5,Q7 SIA445EDJ Vishay Siliconix 2.05 x 2.05 0.8 2
Nch-MOSFET Q6,Q8 SIA400EDJ Vishay Siliconix 2.05 x 2.05 0.8 2
LED D1 LNJ337W83RA Panasonic green - 1.6 x 0.8 0.25 1
LED D2 LNJ237W82RA Panasonic red - 1.6 x 0.8 0.25 1
Diode D3 DA22F21 Panasonic - - 3.5 X 1.6 0.8 1

NN32251A
Page 4 of 7
Evaluation Board User’s Guide
Category Specification
EVB size 60.0 mm ×60.0 mm
Thickness 0.80 mm
Layer 4 layers
3. EVB Layout
3-1. Evaluation Board
EVB Photo (Bottom)
EVB Photo (Top)
EVB Bottom AssemblyEVB Top Assembly
3-2. Specification of EVB
Note : The circuit and layout are designed for this evaluation board only. Thorough verification and evaluation
must be done for the final product at your own risk.
EVB (for Qi Type A11) Information (Continued)

NN32251A
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Evaluation Board User’s Guide
4. The Whole Picture
5V Input
GND
EVB (for Qi Type A11) Information (Continued)