TOP245P

Output Isolation: Isolated
Packaging: Tube
Operating Temperature: -40°C ~ 150°C
Manufacturer: Power Integrations
Voltage - Output: 700V
Voltage - Input: -
Package / Case: 8-DIP (0.300", 7.62mm), 7 Leads
Supplier Device Package: DIP-8B
Frequency Range: 66 ~ 132kHz
Power (Watts): 30W
Series: TOPSwitch®-GX


Features:

This report describes a design for a multiple output power supply, such as required for a Set Top Box, featuring the following:
• Very high full power efficiency (> 83% at full power)
• 32W Continuous power rating
• <0.5W no-load consumption
• Efficiency >75% at 10% output power
• Small DIL08 package for TOP245P requiring no external heatsink
• 50W peak power capability allows for high peak output power demands (e.g. for hard disk spin-up)
• Low EMI (Meets EN55022 with output ground connected to Earth)

Description

This engineering report describes a multiple output evaluation board designed using TOP245P. The specification chosen is targeted towards new Set Top Box systems that incorporate a hard disk. These systems of TOP245P require a peak power capability when the hard disk is first spun-up.

Peak power operation of TOP245P  requires magnetics and diodes specified to handle the currents at the specified peak power point. If peak power operation is not required, designing the supply for maximum continuous power will save additional cost.The document contains the power supply specification, schematic, bill of materials, transformer documentation, printed circuit layout, and measured performance data from the prototype unit shown in Figure 1.

Parameters:

Technical/Catalog Information	TOP245P
Vendor	Power Integrations
Category	Integrated Circuits (ICs)
Packaging	Tube
Package / Case	8-DIP
Power (Watts)	30W
Voltage - Input	-
Voltage - Output	700V
Frequency Range	66 ~ 132kHz
Operating Temperature	-40°C ~ 150°C
Output Isolation	Isolated
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	TOP245P TOP245P