L6598
High voltage resonant controller
Datasheet - production data
Sense op amp for closed loop control or
protection features
High accuracy current controlled oscillator
Integrated bootstrap diode
Clamping on Vs
Available in DIP16 and SO16 packages
Description
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 lockout
Soft-start frequency shifting timing
The L6598 device is manufactured with the
BCD™ offline 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 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.
Figure 1. Block diagram
November 2013
This is information on a product in full production.
DocID6554 Rev 8
1/23
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