Description
TOPSwitch-GX uses the same proven topology as TOPSwitch, cost effectively integrating the high voltage power MOSFET, PWM control, fault protection and other control circuitry onto a single CMOS chip..
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 fo.
