Product Summary

The pic646 is a power intergrated circuit. The pic646 is specially designed, constructed and specified for use in high current switching regulator applications. The pic646 is enclosed in a special 3-pin TO-3 package, hermetically sealed for high reliability.

Parametrics

pic646 absolute maximum ratings: (1) input voltage, V4-2: 80V; (2) Output voltage, VI-2: 80V; (3) drive-input reverse voltage, V3-4: 5V; (4) Continuous output current, Ii: 15A; (5) peak output current: 20A; (6) drive current, I3: -0.4A; (7) operating temperature range, Tc: -55 to +125°C; (8) maximum junction temperature, Tj: +150°C; (9) storage temperature range: -65 to +150°C.

Features

pic646 features: (1) designed and characterized for switching regulator applications; (2) cost saving design reduces size, improves efficiency, reduces noise and RFI; (3) high operating frequency (to＞100kHz) results in smaller inductor-capacitor filter and improved power supply response time; (4) high operating efficiency: typical 7A circuit performance: rise and fall time＜300ns, efficiency＞85%; (5) no reverse recovery spike generated by commutating diode.

Diagrams

pic646 circuit