onsemi FAN7621BSJX

FAN7621B Series 25 V PFM Controller for Half-Bridge Resonant Converter - SOP-16

FAN7621 ACTIVE (Last Updated: 1day ago) Current Limiting Over Load Over Temperature Over Voltage Tape & Reel (TR) dc ac converter 17V 10.2mm 192W Up to 300kHz

PFM CONTROLLER, 300KHZ MAX, 16SOP; Input Voltage:17V; Digital IC Case Style:SOIC; 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 FAN7621B 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 FAN7621B simplifies designs and improves productivity, while improving performance. The FAN7621B includes a highside 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 FAN7621B can be applied to various resonant converter topologies; such as series resonant, parallel resonant, and LLC resonant converters.