This document describes the features and characteristics of the TOP242-250 TOPSwitch-GX family of products, including extended power range, no heatsink required, soft-start, programmable current limit, etc.
This document is a datasheet for the TOP242-250 TOPSwitch-GX Family, described as an Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher. The device integrates a high voltage power MOSFET, PWM control, and fault protection onto a single CMOS chip to reduce system cost and improve design flexibility. It features functions such as soft-start, hysteretic thermal shutdown, and line under-voltage/overvoltage detection.
| Switching Frequency | 132 kHz |
|---|---|
| Remote Off Mode Consumption (110 VAC) | 80 mW |
| Remote Off Mode Consumption (230 VAC) | 160 mW |
The switching frequency is internally set for a fixed 132 kHz operation in P and G packages, or selectable between 132 kHz and 66 kHz for Y, R, or F packages.
No, the device does not require a heatsink for power outputs up to 34 W when using P/G packages.