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Resonant Controller, 8.85 V to 16 V in, NSOIC-16

L6599ATD - Resonant Controller, 8.85 V to 16 V in, NSOIC-16

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L6599ATD   Datasheet
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Product Overview

The L6599ATD is a double-ended improved high voltage Resonant Controller specific to series-resonant half bridge topology. It provides 50% complementary duty cycle: the high-side switch and the low-side switch are driven ON/OFF 180° out-of-phase for exactly the same time. Output voltage regulation is obtained by modulating the operating frequency. A fixed dead-time inserted between the turn-OFF of one switch and the turn-ON of the other guarantees soft-switching and enables high-frequency operation. To drive the high-side switch with the bootstrap approach, the IC incorporates a high voltage floating structure able to withstand more than 600V with a synchronous-driven high voltage DMOS that replaces the external fast-recovery bootstrap diode. The IC enables the designer to set the operating frequency range of the converter by means of an externally programmable oscillator.
  • 50% Duty cycle, variable frequency control of resonant half bridge
  • High accuracy oscillator
  • Up to 500kHz Operating frequency
  • Two-level OCP - Frequency-shift and latched shutdown
  • Interface with PFC controller
  • Latched disable input
  • Burst mode operation at light load
  • Input for power-ON/OFF sequencing or brownout protection
  • Non-linear soft-start for monotonic output voltage rise
  • 600V - Rail compatible high-side gate driver with integrated bootstrap diode and high dv/dt immunity
  • -300/700mA high-side and low-side gate drivers with UVLO pull-down
  • Guaranteed for extreme temperature ranges


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MSL 3 - 168 hours
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Technical Docs (3)

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