Renesas RAA223021 Manual

RTKA223021DE0000BU
The RAA223021 evaluation board
(RTKA223021DE0000BU) is a high voltage buck
converter that demonstrates a low-cost high
performance non-isolated AC/DC conversion from an
universal input of 85V
AC
with the output current up to 667mA.
The board has built-in overcurrent, short-circuit, input
brownout, and over-temperature protection, and is
designed on a single side PCB with a full-wave input
rectification. It is pre-compliant with conducted EMI
requirements by EN55022/CISPR 22.
RTKA223021DE0000BU uses the RAA223021
SOIC-7 packaged IC.
Features
▪ Universal input
▪ Single side PCB with low-cost external components
▪ EMI compliance for EN55022/CISPR22
▪ Standby power less than 20mW
▪ No audible noise
FR
D1
V
IN
85V ~265V
AC AC
Output Setting Voltage (V)
3.3
5
9
12
15
24
X0119846 Rev.1.1
May 26, 2021
to 265V , to a 12V output
AC
L1
DRAIN
+ C + C
1 2
SOURCE
Figure 1. RTKA223021DE0000BU Block Diagram
Table 1. HV Buck of 021 Power Derating at 85°C Ambient Temperature
120V
AC
0.67A
0.67A
0.64A
0.56A
0.56A
0.49A
Specifications
This board is optimized for the following operating
conditions:
• Input voltage: 85V
• Output voltage: 12V
• Output current: 667mA max
• Output power: 8W
• Efficiency: >77% at 100% load; 80% at 50% load
• No-load power: 14mW at 120V
• Load regulation: ±2.4%, load range 10% to 100%
• Operating temperature: -40~85°C
• Board dimension: 40mm x 60mm.
R
VCC
RAA223021
FB
C
VCC
SOURCE
230V
0.58A
0.66A
0.6A
0.54A
0.52A
0.5A
Evaluation Board Manual
~ 265V
AC AC
DC
AC
D
4
2
C
3
D
R
FB1
C
FB1
R
FB2
C
FB2
D
2
90V
AC
© 2021 Renesas Electronics
; 16mW at 230V
AC
3
L
V OUT
2
C
OUT
R
1
~265V
AC AC
0.56A
0.6A
0.56A
0.5A
0.5A
0.46A
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