Datasheet Summary
Ultra High Voltage Start Up
DESCRIPTION
The SP689A is a low cost version ultra high voltage start up IC. This IC is ideal to use in conjunction with any PWM to further reduce the standby power. By using SP689A, it can eliminate the need for startup resistors and bleeder resistors in switching mode power supply design. It would provide the users a superior AC/DC power application with higher efficiency and lower standby power. With low external ponent counts, SP689A is a low cost solution for the applications.
SP689A is available in SOT-23-5L package.
APPLICATIONS
- AC/DC Switching Power Adaptor
- Battery Charger
- Open-Frame Switching Power Supply
- LED Power Supply
Features
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