L4985
L4985 is CCM PFC controller manufactured by STMicroelectronics.
CCM PFC controller with high voltage startup
Features
- Peak current mode CCM-operated
- 800 V high voltage startup with integrated input voltage sensing
- Active input filter capacitor discharge
- Proprietary multiplier “emulator” with minimum THD of line current in all operating conditions (CCM and DCM)
- Extremely few external ponents
- Protections: feedback loop failure, OVP, OCP, inductor saturation, brown-in, brownout (pliant to medical SMPS standards)
- Inductor current sense
- Disable and low consumption function
- In-rush current monitoring
- Soft-start for smooth startup
- 1.2% (@ Tj = 25 °C) internal reference voltage
- 65 kHz (A version) and 130 kHz (B...
