onsemi FAN7621N

Switching Controller, Voltage-mode, 0.6A, 106kHz Switching Freq-Max, PDIP16

Current Limiting Over Load Over Temperature Over Voltage Tube R-PDIP-T16 Through Hole dc ac converter 400V 19.17mm 200W Up to 300kHz

PFM CONTROLLER, 300KHZ MAX, 16DIP; Input Voltage:17V; Digital IC Case Style:DIP; No. of Pins:16; Frequency:100kHz; Operating Temperature Range:-40°C to +130°C; MSL:MSL 1 - Unlimited; SVHC:No SVHC (19-Dec-2012); Power Dissipation ;RoHS Compliant: Yes

The FAN7621 is a pulse frequency modulation controller for high-efficiency half-bridge resonant converters. Offering everything necessary to build a reliable and robust resonant converter, the FAN7621 simplifies designs and improves productivity, while improving performance. The FAN7621 includes a high-side gate-drive circuit, an accurate current controlled oscillator, frequency limit circuit, soft-start, and built-in protection functions. The high-side gate-drive circuit has a common-mode noise cancellation capability, which guarantees stable operation with excellent noise immunity. Using the zero-voltage-switching (ZVS) technique dramatically reduces the switching losses and efficiency is significantly improved. The ZVS also reduces the switching noise noticeably, which allows a small-sized Electromagnetic Interference (EMI) filter The FAN7621 can be applied to various resonant converter topologies; such as series resonant, parallel resonant, and LLC resonant converters.