RDK-420: 5V @ 2A, 10W, 85 ~ 264V in

Summary

This document is an engineering report describing a 2 A, 5.0 V USB charger utilizing a device from the InnoSwitch-CH family of ICs. This design is intended to show the high power density and efficiency that is possible due to the high level of integration while still providing exceptional performance.

This document contains the power supply specification, schematic, bill of materials, transformer documentation, printed circuit layout, and performance data.

Specifications

Manufacturer Power Integrations
Category AC/DC and DC/DC Conversion
Sub-Category AC/DC SMPS - Single Output
Eval Board Part Number 596-1505-ND
Eval Board Supplier Power Integrations
Eval Board Board not Stocked
AC Voltage 115 V
230 V
Universal (115 / 230V)
Outputs and Type 1 Isolated
Voltage Out 5 V
Current Out 2 A
Output Power 10 W
Features Current Limit (Adj. or Fixed)
Over Current Protection
Over Voltage Protection
Thermal Protection
Efficiency @ Conditions >84%, 265 VAC, 5V @ 30 ~ 100 % Load
>84%, 230 VAC, 5V @ 0.6 ~ 2 A
>84%, 115 VAC, 5V @ 25 ~ 100 % Load
>80%, 85 VAC, 5V @ 20 ~ 100% Load
No-load Input Power @ Voltage 10 mW @ 230 V
Switching Frequency 100 kHz
Internal Switch Yes
Component Count + Extras 32 + 4
Voltage In 85 ~ 264 VAC
Design Author Power Integrations
Application / Target Market Battery Chargers
Power: AC Adapters
Power: Auxiliary Power Supply
Main I.C. Base Part INN2023K
Date Created By Author 2015-04
Date Added To Library 2021-04

Eval Board

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Support Documents & Media

RDK-420 - RDR-420 - User Guide INN20x3-20x5 - Datasheet

Media

RDK_420_Schematic_Full.png RDK_420_Board_1_Full.jpg RDK_420_Board_2_Full.jpg RDK_420_Chart_1_Full.png RDK_420_Chart_2_Full.png RDK_420_Chart_3_Full.png