The L6598 is a high voltage Resonant Controller manufactured with the BCD? offline technology, able to ensure voltage ratings up to 600V, making it perfectly suited for AC/DC adapters and wherever a resonant topology can be beneficial. The device is intended to drive two power MOSFETs, in the classical half bridge topology. A dedicated timing section allows the designer to set soft-start time, soft-start and minimum frequency. An error amplifier, together with the two enable inputs, are made available. In addition, the integrated bootstrap diode and the Zener clamping on low voltage supply, reduces to a minimum the external parts needed in the applications.
- CMOS shutdown input
- Under-voltage lockout
- Soft-start frequency shifting timing
- Sense op amp for closed loop control or protection features
- High accuracy current controlled oscillator
- Integrated bootstrap diode
- Clamping on Vs
- dV/dt immunity of ±50V/ns in full temperature range
- Driver current capability - 250mA Source and 450mA sink
- 80/40ns Rise/fall with 1nF load switching time
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