Power Integrations TOP242
the TOPSwitch standard DRAIN, SOURCE and CONTROL terminals allow the following functions: line sensing (OV/UV, line feed-forward/DCMAX reduction), accurate externally set current limit, remote ON/OFF, synchronization to an external lower frequency, and frequency selection (132 kHz/66 kHz).| Part No. | TOP242 |
|---|---|
| Datasheet | TOP242 Download |
| Manufacturer |  Power Integrations |
| Description | Integrated Off-line Switcher |
| Buy | Stock & Price |
FEATURES
eliminate or reduce cost of external components● Fully integrated soft-start for minimum stress/overshoot
● Externally programmable accurate current limit
● Wider duty cycle for more power, smaller input capacitor
● Separate line sense and current limit pins on Y/R/F packages
● Line under-voltage (UV) detection: no turn off glitches
● Line overvoltage (OV) shutdown extends line surge limit
● Line feed-forward with maximum duty cycle (DCMAX) reduction rejects line ripple and limits DCMAX at high line
● Frequency jittering reduces EMI and EMI filtering costs
● Regulates to zero load without dummy loading
● 132 kHz frequency reduces transformer/power supply size
● Half frequency option in Y/R/F packages for video applications
● Hysteretic thermal shutdown for automatic fault recovery
● Large thermal hysteresis prevents PC board overheating EcoSmart – Energy Efficient
● Extremely low consumption in remote off mode (80 mW at 110 VAC, 160 mW at 230 VAC)
● Frequency lowered with load...
