Power Integrations TOP245F
the TOPSwitch standard DRAIN, SOURCE and CONTROL terminals allow the following functions: line sensing (OV/UV, line feedforward/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. | TOP245F |
|---|---|
| Datasheet | TOP245F 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 AC IN + DC OUT - ® D L CONTROL TOPSwitch-GX S X F C PI-2632-060200 Figure 1. Typical Flyback Application. OUTPUT POWER TABLE 230 VAC ±15%4 85...
