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L6598 Datasheet(PDF) 1 Page - STMicroelectronics |
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L6598 Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 24 page  October 2009 Doc ID 6554 Rev 7 1/24 24 L6598 High voltage resonant controller Features ■ High voltage rail up to 600 V ■ dV/dt immunity ±50 V/ns in full temperature range ■ Driver current capability: 250 mA source 450 mA sink ■ Switching times 80/40 ns rise/fall with 1 nF load ■ CMOS shutdown input ■ Undervoltage lock-out ■ 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 ■ SO16, DIP16 packages Description The device is manufactured with the BCD OFF LINE technology, able to ensure voltage ratings up to 600 V, making it perfectly suited for AC/DC Adapters and wherever a resonant topology can be beneficial. The device is intended to drive two power MOSFET, 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. Figure 1. Block diagram www.st.com |
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