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RD5

Description
Reference Design Board 85 to 265 VAC Input, 20W (30W Peak) Output
File Size96KB,12 Pages
ManufacturerPower Integrations
Websitehttps://www.powerint.cn
Download Datasheet View All

RD5 Overview

Reference Design Board 85 to 265 VAC Input, 20W (30W Peak) Output

RD5
®
TOPSwitch-II
Reference Design Board
85 to 265 VAC Input, 20W (30W Peak) Output
Product Highlights
Low Cost Production Worthy Reference Design
• Only 22 components!
• Single sided board
• Low cost thru-hole components
• Fully assembled and tested
• Easy to evaluate and modify
• Extensive performance data
• Up to 80% efficiency
• Light weight – no heat sink required for
TOPSwitch-II
Fully Protected by
TOPSwitch-II
• Primary safety current limit
• Output short circuit protection
• Thermal shutdown protects entire power supply
Designed for World Wide Operation
• Designed for IEC/UL safety requirements
• Meets VDE Class B EMI specifications
Figure 1. RD5 Board Overall Physical Dimensions.
1.69 in.
(43 mm)
®
3.57 in. (91 mm)
1.06
in.
(27 mm)
PI-2058-041698
PARAMETER
Input Voltage Range
Input Frequency Range
Temperature Range
Output Voltage
(I
o
= 1.0A)
Output Power
(continuous)
Output Power
(peak)
Line Regulation
(85-265 VAC)
Load Regulation
(10%-100%)
Efficiency
Output Ripple Voltage
Safety
EMI
LIMITS
85 to 265 VAC
47 to 440 Hz
0 to 50°C
12 V
±
5%
25˚C
20W
50˚C
15W
30W
±
1%
±
1%
78%
±
60 mV MAX
IEC 950 / UL1950
VDE B
(VFG243 B)
CISPR22
Description
The RD5 reference design board is an example of a very low
cost production worthy power supply design using the
TOPSwitch
family of Three-terminal Off-line PWM Switchers
from Power Integrations. It is intended to help
TOPSwitch
users to develop their products quickly by providing a basic
design that can be easily modified to fit a particular application.
In most cases, a minor change to the transformer for a different
output voltage is all that is needed. Multiple output voltages are
obtained just as easily. A constant current or constant power
output may be implemented with the addition of a few low cost
components.
Typical applications include AC-DC adapters for laptops,
notebooks and PDAs, battery chargers for cellular telephones,
power tools and camcorders, VTR/VCR, video game, appliance
and satellite decoder power supplies.
Figure 2. Table of Key Electrical Parameters.
July 1997
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