Renesas RTKA223011DE0010BU User manual

User Manual
X0116829 Rev.1.0 Page 1
Jan.27.21
The RAA223011 evaluation board (RTKA223011DE0010BU) is a high voltage buck converter that is designed to
demonstrate a low-cost high performance non-isolated AC/DC conversion from an universal input of 85VAC to
265VAC, to a 12V output with the output current up to 300mA.
The RTKA223011DE0010BU has built-in overcurrent, short-circuit, input brownout, and over-temperature
protection. The board is designed on a single side PCB with a single diode half-wave input rectification. It is
pre-compliant with conducted and radiated EMI requirements by EN55022/CISPR 22.
The RTKA223011DE0010BU comes with a RAA223011 in 8 Ld SOIC package.
Key Features
▪Universal input
▪Single-side PCB with low cost external components
▪EMI compliance for EN55022/CISPR22
▪Standby power less than 10mW
▪No audible noise
Specifications
This board is optimized for the following operating conditions:
▪Input voltage: 85VAC ~ 265VAC
▪Output voltage: 12VDC
▪Output current: 300mA max (at 230VAC or higher)
▪Output power: 3.6W
▪Efficiency: >73% at 100% load; 80% at 50% load
▪No-load power: 7mW at 120VAC; 9.6mW at 230VAC
▪Load regulation: -2.4%, load range 10% to 100%
▪Operating temperature: -45°C~65°C
▪Board dimension: 40mm x 60mm
Ordering Information
Related Literature
For a full list of related documents, visit our website:
▪RAA223011 device page
Part Number Description
RTKA223011DE0010BU RAA223011 evaluation Board for 8 Ld SOIC option
RTKA223011DE0010BU
Evaluation Board

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RTKA223011DE0010BU User Manual
1. Circuit Description
The RTKA223011DE0010BU is buck regulator implemented with a high-side float-switching topology, with
switching frequency up to 33kHz. Its input has D1, D7 as a low-cost half-wave rectification (with an optional
full-bridge rectifier foot-print). FR is a 1W fusible resistor providing input overcurrent protection and inrush current
limiting. It also helps to absorb the input line surge energy together with DC buffer caps, C1 and C2.
C1, L1, and C2 consists of the input filter that provides the energy buffer after rectification and reduces conducted
EMI noises to the input. L2, D2, and COUT is the buck converter. RFB1, RFB2, CFB2, and CFB1 provide the
output feedback signal to the IC. D4 and R2 provide VCC biasing current after startup, to increase the efficiency.
They can be optional for low-cost, low-power applications. CVCC is the IC supply capacitor.
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.
▪Load resistor box with adjustable value of 40Ωand up, or an electronics load than can emulate a resistor load
or current load up to 300mA.
▪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 terminals
of the RTKA223011DE0010BU. An optional power meter can be added in between the AC power supply output
and input of the board.
3. Connect the load to the output terminals VOUT and GND.
4. Connect a voltage meter to VOUT and GND and connect a current meter between board outputs and the load.
5. Turn on AC power supply.
Figure 1. RTKA223011DE0010BU Connection Diagram
VOUT +
VIN
85VAC ~ 265VAC
RLOAD
Power
Meter
V
A

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RTKA223011DE0010BU User Manual
2. Board Design
2.1 PCB Guidelines
For detailed PCB guidelines, see the RAA223011 datasheet.
2.2 RTKA223011DE0010BU Evaluation board
Figure 2. RTKA223011DE0010BU Evaluation Board (Top)
Figure 3. RTKA223011DE0010BU Evaluation Board (Bottom)

RTKA223011DE0010BU User Manual X0116829 Rev.1.0 Page 4 Jan.27.21
2.3 RTKA223011DE0010BU Circuit Schematic
Figure 4. RTKA223011DE0010BU Schematic
L
85VAC~265VAC
VOUT
GND
VCC
VREC
SMP
GND
N
VSW
L1
1000UH
D4
ES1J
J1
40.2K
R2
TP3
1MH
L2
J2
TP2
4.7UF
C2
1N4007
D3
10
FR
RFB2
100K
TP1
470UF COUT
1N4007
D7
402K
RFB1
RAA2230114GSP#JA0
U1
1
VCC
2
FB
3
GND
4
SOURCE
5
NC
6
NC
7
DRAIN
8
NC
0.1UF
C4
D6
0.47UF
C3
D2
68K
R1
D5
0.22UF
CFB1
CVCC
1UF
J4
1N4007
D1
TP6 TP4
J3
C1
4.7UF
JP1
150PF
CFB2
UNNAMED _2_AXIALDIODE_I14_ANUNNAMED _2_ AX IALDIODE _I14_CAT
UNNAMED _2_ AX IALDIODE _I32_AN
UNNAMED _2_ AX IALDIODE _I59_AN
UNNAMED _2_ AX IALDIODE _I60_AN
UNNAMED _2_ AX IALRES _I25_1 UNNAMED _2_ INDRAD IAL_I27 _1 UNNAME D_2 _INDRAD IAL_ I27_2
UNNAMED _2_INDRADIAL_I28_AUNNAMED_2_JUMPER2_I47_IN1
UNNAMED _2_ RAA 223011_I64_2
UNNAMED_2_SMCAP_I21_A
UNNAMED _2_SMCAP_I62_A

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RTKA223011DE0010BU User Manual
2.4 Bill of Materials
QTY
Reference
Designator Description Manufacturer Part Number
1 COUT CAP ALUM 470µF 20% 16V Radial Rubycon 16ZLH470MEFCT78X11.5
3 D1, D3, D7 Generic Diode, 1kV, 1A, DO41 MCC 1N4007
2 C3, C4 Multilayer CAP, 0.47µF, 16V, 10%, 0603 TDK C1608X7R1C474K
1 FR Miniature Metal Film Resistor, 10Ω, 1W, 1%, Axial Yageo FKN1WSJR-52-10R
1 D4 1A 600V Fast Rectifier Diode, SMA Fairchild ES1J
2 C1, C2 CAP ALUM 4.7µF 20% 400V Radial Kemet ESG475M400AH2AA
1 CFB2 Ceramic Chip Cap, 150pF, 5%, 50V, 0603 Murata GRM1885C1H151JA01D
1 CFB1 Ceramic Chip Cap, 0.22µF, 10%, X7R, 25V, 0603 Murata GRM188Z71E224KE43
1 CVCC Multilayer Cap, 1µF, 10V, 10%, X7R, 0603 Generic GRM188R71A105KA61D
1 RFB2 Thick Film Chip Resistor, 100k, 1%, 1/10W, 0603 Generic
1 R2 Thick Film Chip Resistor, 40.2k, 1%, 1/10W, 0603 Generic
1 R1 Thick Film Chip Resistor, 68k, 1%, 1/10W, 0603 Generic
1 RFB1 Thick Film Chip Resistor, 402k, 1%, 1/8W, 0805 Generic
1 D2 Ultrafast Power Rectifier, 600V, 2A, SMB On
Semiconductors
MURS160T3
1 U1 700V, 1W AC/DC Buck Regulator, SO8 Renesas RAA2230114GSP#JA0
1 L2 Fixed Inductor, 1MH, 15%, 470MA, 1.915Ω, TH Sumida RCH8011NP-102L
1 L1 RLB Series Radial Lead Inductor, 1mH, 10%, 100mA,
11.5Ω, TH
Bourns RLB0608-102KL

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RTKA223011DE0010BU User Manual
2.5 Board Layout
To download our design files, visit our website.
Figure 5. Top Layer
Figure 6. Bottom Layer

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RTKA223011DE0010BU User Manual
3. Typical Performance Curves
3.1 EMI Test Results
RTKA223011DE0010BU is compliant to the conducted and radiated EMI requirements of FCC Part15 and
CISPR22.
Vin = 85VAC~265VAC, VOUT = 12V, IOUT = 300mA (maximum), TA= +25°C
Figure 7. Efficiency Overload Current, VOUT = 12V Figure 8. Load Regulation
Table 1. Typical No-Load Power Consumption
Power Supply Standby Power Energy Star
120VAC/60Hz 7mW 300mW
230VAC/50Hz 9.5mW 300mW
Figure 9. Line, 120VAC Figure 10. Line, 230VAC
50
55
60
65
70
75
80
85
0 50 100 150 200 250
300
Efficiency (%)
Load Current (mA)
120Vac
230Vac
11.5
11.7
11.9
12.1
12.3
12.5
12.7
12.9
0 50 100 150 200 250 300
VOUT (V)
Load Current (mA)
120Vac
230Vac

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RTKA223011DE0010BU User Manual
Figure 11. Neutral, 120VAC Figure 12. Neutral, 230VAC
Figure 13. FCC Part15/CISPR22 Class B Radiated Emissions at 3 Meters, 120VAC, 60Hz (Peak Detector)
Figure 14. FCC Part15/CISPR22 Class B Radiated Emissions at 3 Meters, 230VAC, 50Hz (Peak Detector)

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RTKA223011DE0010BU User Manual
4. Revision History
Rev. Date Description
1.00 Jan.27.21 Initial release

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