DESCRIPTION

SP687 blocks current flow in the X2 capacitor safety

discharge resistors, reducing the power loss to less than

5mW at 230 VAC. When AC voltage is disconnected,

SP687 automatically discharges the X2 capacitor by

connecting the series discharge resistors. This operation

allows total flexibility in the choice of the X2 capacitor

to optimize differential mode EMI filtering and reduce

inductor costs, with no change in power consumption.

SP687 meets IEC 62368-1: 2018 version.

APPLICATIONS

 AC/DC Switching Power Adaptor/Desktop

 Battery Charger

 Open-Frame Switching Power Supply

 LED Power Supply

FEATURES

 750V CDMOS Process

 Auto Re-Start

 X2 Capacitor Discharge

 Less than 5mW power consumption at 230VAC

 SOP-8/SOD-123Package design