L4984D
L4984D is CCM PFC controller manufactured by STMicroelectronics.
SSOP10
CCM PFC controller
- production data
Table 1. Device summary
Order code
Package
L4984D L4984DTR
SSOP10
Packaging Tube
Tape and reel
Features
- Line-modulated fixed-off-time (LM-FOT) control of CCM-operated PFC pre-regulators
- Proprietary LM-FOT modulator for nearly fixedfrequency operation
- Proprietary multiplier design for minimum THD of AC input current
- Fast “bi-directional” input voltage feedforward (1/V2 correction)
- Accurate adjustable output overvoltage protection
- Protection against feedback loop failure (latched shutdown)
- Inductor saturation protection
- AC brownout detection
- Digital leading-edge blanking on current sense
- Soft-start
-...
