Renesas RTKA223181DE0010BU User manual

Evaluation Board Manual
R16UZ0026EU0100 Rev.1.00 Page 1
Nov 5, 2021 © 2021 Renesas Electronics
The RTKA223181DE0010BU, featuring the
RAA223181 900V regulator, is a dual output 5.7W
universal input flyback evaluation board; it provides a
low-cost high performance isolated AC/DC solution
from a universal input of 85VAC to 265VAC to both a
13V output and a 5V output for smart meter
applications.
The RTKA223181DE0010BU features proprietary
cost savings such as the short-time heavy load
operation that eliminates the need of transformer
over-design for the heavy load in communication, and
it features a single 400V electrolytic capacitor for
input voltage up to 450VAC that saves 3x
capacitances when compared to the traditional two-
cap solution. The board operates in DCM with
constant frequency at 50kHz in normal operation and
uses valley switching to reduce switching losses and
EMI noises. The board has the built-in protections of
overload, short-circuit, input brownout, VCC UV,
VCC OV, VIN UV, peak current limit, primary short, and
over-temperature protections. With a low-cost input
EMI filter, the board is pre-compliant with
EN55022/CISPR 22 Class B conducted EMI limits,
and it has the 4kV surge capability according to
IEC61000-4-5 standard.
Features
▪ Fault tolerant input range up to 450VAC
▪ Short-time heavy load support
▪ Single bus capacitor design for input up to 450VAC
▪ Low BOM cost design
▪ EMI compliance for EN55022/CISPR22
▪ Surge test compliance to IEC61000-4-5 up to 4kV
Specifications
This board is optimized for the following operating
conditions:
▪ Input voltage: 85VAC ~ 265VAC
▪ Operating temperature: -40C ~ 95C
▪ Output: 13V/400mA; 5V/100mA
▪ Output power: 5.5W
▪ Max short-time load support (80ms):
•9.5W - 85V
AC ~ 265VAC input
• 12W - 120VAC and 230VAC input
▪ Efficiency: >75% at 100% load; >75% at 50% load
▪ Load regulation: 13V: <±2%; 5V: <±8%,
10% to 100% load
▪ Board dimension: 48mm x 29mm
RTKA223181DE0010BU

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RTKA223181DE0010BU Evaluation Board Manual
Contents
1. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Recommended Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Quick Start Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Board Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3. Typical Performance Graphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1 EMI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4. Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5. Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

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RTKA223181DE0010BU Evaluation Board Manual
1. Functional Description
The RTKA223181DE0010BU, featuring the RAA223181 900V regulator, is a dual output 5.7W universal input
flyback demonstration board; it is designed to demonstrate a low-cost high performance isolated AC/DC solution
from a universal input of 85VAC to 265VAC to either a 13V or a 5V output for smart meter applications.
1.1 Recommended Equipment
▪ AC Power supply capable of generating AC voltage from 85VAC to 265VAC at 60Hz/50Hz, with at least 100mA
output current capability.
▪ A load resistor box with adjustable value of 32Ω and greater, or an electronics load that can emulate a resistor
load or current load up to 400mA for a 13V output. A load resistor box with adjustable value of 50Ω and greater,
or an electronics load that can emulate a resistor load or current load up to 100mA for a 5V output.
▪ Multimeters to measure the output voltage and current.
▪ Power meter to measure the AC input power.
1.2 Quick Start Guide
1. Program the AC power supply with a voltage between 85VAC and 265VAC at the corresponding frequency of
60Hz or 50Hz.
2. While the AC power supply is off, connect the output cables of the AC power supply to the L and N terminal of
the RTKA223181DE0010BU. A optional power meter can be added in between AC power supply output and
input of the board.
3. Connect the corresponding load to the output terminal 13VOUT and GND and 5VOUT and GND, respectively.
4. Connect a voltage meter to VOUT and GND, and connect a current meter between the board outputs and
the load.
5. Turn on the AC power supply.
Figure 1. RTKA223181DE0010BU Connection Diagram

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RTKA223181DE0010BU Evaluation Board Manual
2. Board Design
Figure 2. RTKA223181DE0010BU Evaluation Board (Top)
Figure 3. RTKA223181DE0010BU Evaluation Board (Bottom)

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RTKA223181DE0010BU Evaluation Board Manual
2.1 Schematic Diagram
2.2 Bill of Materials
Figure 4. RTKA223181DE0010BU Schematic
Qty
Reference
Designator Description Value Manufacturer
Manufacturer
Part Number
1F1Fuse 2A, 250V
AC, Radial Bel Fuse RST 2
1 D2 1A 1000V Bridge Rectifier 1A, 1000V, ABS Diodes Inc ABS10A-13
1 D1 Zener Diode 20V, 6%, 500mW, SOD-123 Micro
commercial
BZT52C20-TP
1 D3 Zener Diode 5.6V, 500mW, SOD-123 Micro
commercial
BZT52C5V6-TP
1 D6 General Purpose Diode 0.2A, 200V, SOD-323 Micro
commercial
BAV21WS-TP
1 D7 Fast Recovery Diode 1A, 1kV, SMA Onsemi RS1M
2 D8, D9 Schottky Rectifier 2A, 120V, DO-219AD Vishay V2PM12
1 L1 Ferrite Bead, SMD 60Ω at 100MHz, 0603 Murata BLM18PG600SN1D
1 L3 Fixed Inductor 1mH, 5%, 0.1A, Axial Bourns 77F102J-TR-RC
1 C1 Multilayer Ceramic Cap 1000pF, 10%, 50V, 0603 Various Generic
1 C2 Multilayer Ceramic Cap 3900pF, 10%, 50V, 0603 Various Generic
1 C3 Multilayer Ceramic Cap 47nF, 10%, 50V, 0603 Various Generic
1 C4 Multilayer Ceramic Cap 100pF, 10%, 50V, 0603 Various Generic
R22
665K
D6
BAV21WS
R3
40.2K
15UF
C9
D3
C8
100PF
R10
20K
TP2
RS1M
D7
L3
1000UH
D8
R11
4.7K
TP9
R21 22K
TP5
1000PF
C1
TP1
1.02K
R6
1000PF
C13
27
R23
TP12
R14
73.2
100PF
C4
F1
RST 1
C11
2200PF
R7
10K
D9
27
R2
3900PF
C2
TP11
0.047UF
C3
D1
150K
R19
0.1UF
C18
C15
470UF
R4 DNP
R9
1.02K
TP10
0.1UF
C7
Z1
MOV-10D751K
12
L1
C10
0.22UF
C14
470UF
200K
R12
R16
22.1K
TP13
E
CA
C
EL817A-V
U2
10UF
C5
TL431FDT
U3
10K
R8
R1
54.9K
R13
1
665K
R17
113K
R15
47
R20
C12
2200PF
C17
+
-
~
~
D2
ABS10A-13
12
34
R18
665K
FSET
FB
V CC
GND
VDET
S
DD
D
CDRV
PRO
OVL
HV
RAA2231814GSP#AA0
U1
1
2
3
4
5
6
8 9
10
12
13
14
16
8.25K
R5
0.1UF
C6
Q1
C16
470UF
SEC
NS1
NS2
PRI
NP2
NP1
NAUX
T1
1
2
3
4
5
6
7
8
10
13VOUT
5VOUT
UNNAMED_2_0603BEAD_I212_B
UNNAMED_2_AXIALRES_I 204_2
UNNAMED_2_AXIALRES_I 208_2
UNNAMED_2_BELRST_I 156_A UNNAMED_2_BELRST_I 156_B
UNNAMED_2_BOURNSMOVSERIES_I203_B
UNNAMED_2_CHOKE_I165_A
UNNAMED_2_EL817_I178_AN
UNNAMED_2_EL817_I178_CAT
UNNAMED_2_NCHANNEL_I168_D
UNNAMED_2_NCHANNEL_I168_G
UNNAMED_2_RAA223181_I66_PI N1
UNNAMED_2_RAA223181_I66_PIN10
UNNAMED_2_RAA223181_I66_PIN13
UNNAMED_2_RAA223181_I66_PIN14
UNNAMED_2_RAA223181_I66_PIN16
UNNAMED_2_RAA223181_I66_PI N2
UNNAMED_2_RAA223181_I66_PI N3
UNNAMED_2_RAA223181_I66_PI N5
UNNAMED_2_RAA223181_I66_PI N6
UNNAMED_2_SMCAP_I 109_A UNNAMED_2_SM CAP_I109_B
UNNAMED_2_SMCAP_I 182_A UNNAMED_2_SMCAP_I 182_B
UNNAMED_2_SMCAP_I 81_A
UNNAMED_2_SMDI ODE_I105_ANUNNAMED_2_SMDIODE_I105_CAT
UNNAMED_2_SMRES_I193_BUNNAMED_2_ SMRES_I 194_ B
UNNAMED_2_SMRES_I 80_A
UNNAMED_2_SMSCHOTTKY_I141_AN

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RTKA223181DE0010BU Evaluation Board Manual
1 C5 Multilayer Ceramic Cap,
X7R
0.1µF, 10%, 50V, 0603 Various Generic
1 C6 Aluminum Cap, radial 10µF, 20%, 25V, 0603 Nichicon UMV1E100MFD1TP
1 C8 Multilayer Ceramic Cap 100pF, 10%, 50V, 0603 Various Generic
1 C9 Aluminum Electrolytic
105C rated 10khrs
15µF, 20%, 400V, Radial Nichicon UCS2G150MHD
1 C10 Multilayer Ceramic Cap 0.22µF, 10%, 25V, 0603 Various Generic
1 C11 Multilayer Ceramic Cap 2.2nF, 10%, 630V, 1206 MuRata GRM31BR72J222KW01L
1 C12 AC Rated Class Y1
Ceramic Disk Capacitor
2200pF, 20%, 500VAC Vishay VY1222M37Y5VQ63V0
1 C13 Multilayer Ceramic Cap 1nF, 10%, 200V, 0805 Various Generic
2 C7, C18 Film Cap, Radial 0.1µF, 10%, 630V, Radial Panasonic ECW-FE2J104KA
2 C14, C16 Aluminum Electrolytic
105C rated 8khrs
470µF, 20%, 16V, Radial Rubycon 16ZLH470MEFCT78X11.5
2 C15, C17 Aluminum Electrolytic
105C rated 6khrs
470µF, 20%, 10V, Radial Rubycon 10YXF470MEFCT78X11.5
1 R1 Thick Film Chip Resistor 54.9k, 1%, 1/16W, 0603 Various Generic
2 R2, R23 Metal Oxide Resistors
(3mmx9mm)
30, 5%, 2W, axial Various Generic
1 R3 Thick Film Chip Resistor 40.2k, 1%, 1/16W, 0603 Various Generic
0 R4 Thick Film Chip Resistor DNP Various Generic
1 R5 Thick Film Chip Resistor 8.25k, 1%, 1/16W, 0603 Various Generic
2 R6, R9 Thick Film Chip Resistor 1.02k, 1%, 1/16W, 0603 Various Generic
1 R7 Thick Film Chip Resistor 10k, 1%, 1/16W, 0603 Various Generic
1 R8 Thick Film Chip Resistor 10k, 1%, 1/4W, 1206 Various Generic
1 R10 Thick Film Chip Resistor 20k, 1%, 1/16W, 0603 Various Generic
1 R11 Thick Film Chip Resistor 4.7k, 1%, 1/16W, 0603 Various Generic
1 R12 Thick Film Chip Resistor 200k, 1%, 1/16W, 0603 Various Generic
1 R13 Thick Film Chip Resistor 1, 1%, 1/8W, 0805 Various Bourns
1 R14 Thick Film Chip Resistor 73.2, 1%, 1/16W, 0603 Bourns Generic
1 R15 Thick Film Chip Resistor 113k, 1%, 1/16W, 0603 Various Generic
1 R16 Thick Film Chip Resistor 22.1k, 1%, 1/16W, 0603 Various Generic
3 R17, R18,
R22
Thick Film Chip Resistor 665k 1%, 1/8W, 1206 Various Generic
1 R19 Thick Film Chip Resistor 150k, 1%, 1/8W, 1206 Various Generic
1 R20 Thick Film Chip Resistor 47, 5%, 1/8W, 1206 Various Generic
1 T1 Transformer 1.5mH, 10%, EE16, PTH Wurth 750319223 REV07
1 U1 900V, Offline Flyback
Regulator
RAA223181, SO16-13 Renesas RAA223181
1 U2 Opto-coupler CTR: 80-160, PTH Lite-On LTV-817-A
1 U3 Shunt Regulator TL431, SOT23 Nexperia TL431FDT

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RTKA223181DE0010BU Evaluation Board Manual
2.3 Board Layout
Figure 5. RTKA223181DE0010BU Evaluation Board (Top)
Figure 6. RTKA223181DE0010BU Evaluation Board (Top)

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RTKA223181DE0010BU Evaluation Board Manual
3. Typical Performance Graphs
VIN = 85VAC ~ 265VAC, VO1 = 13V, IOUT= 450mA (max), VOUT = 5V, IOUT= 100mA (max), TA = +25°C
Figure 7. Efficiency Overload Range Figure 8. Load Regulation with 13V Load Sweep
Figure 9. Load Regulation with 5V Load Sweep Figure 10. Load Regulation with Single Output
(R5 = 9.31k, R1: Not Install)
Table 1. Typical No-Load Power Consumption (25°C Ambient)
Input Voltage Standby Power
120VAC/60Hz 205mW
230VAC/50Hz 487mW
30
35
40
45
50
55
60
65
70
75
80
85
0 102030405060708090
100
Efficiency (%)
Percentage Load (%)
120Vac
230Vac
4
5
6
7
8
9
10
11
12
13
14
0 100 200 300
400
V
OUT
(V)
Load Current (mA)
13V output, 230Vac
5V/100mA, 230Vac
13V output, 120Vac
5V/100mA, 120Vac
4
5
6
7
8
9
10
11
12
13
14
020406080100
V
OUT
(V)
Load Current (mA)
13V/400mA, 230Vac
5V output, 230Vac
5V output, 120vac
13V/400mA, 120vac
12.95
12.96
12.97
12.98
12.99
13.00
13.01
13.02
13.03
13.04
13.05
0 50 100 150 200 250 300 350 400
450
V
OUT
(V)
Load Current (mA)
120Vac
230Vac

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RTKA223181DE0010BU Evaluation Board Manual
3.1 EMI
RTKA223181DE0010BU is compliant to the conducted EMI requirements of FCC Part 15 and CISPR22 Class B.
Figure 11. 120VAC, Line Figure 12. 120VAC, Neutral
Figure 13. 230VAC, Line Figure 14. 230VAC, Neutral

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RTKA223181DE0010BU Evaluation Board Manual
4. Ordering Information
5. Revision History
Part Number Description
RTKA223181DE0010BU RAA223181 Evaluation Board
Revision Date Description
1.00 Nov 5, 2021 Initial release

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