L6599ADTR AC-DC Converters by STMicroelectronics

Improved high-voltage resonant controller

Semiconductors - ICs
> Special Function
Status: Active
Series: L6599A
RoHS: Compliant
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The L6599A is an improved revision of the previous L6599. It is a double-ended 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 deadtime 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 600 V 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. At startup, to prevent uncontrolled inrush current, the switching frequency starts from a programmable maximum value and progressively decays until it reaches the steady-state value determined by the control loop. This frequency shift is non-linear to minimize output voltage overshoots; its duration is programmable as well. At light load the IC may enter a controlled burst mode operation that keeps the converter input consumption to a minimum. IC functions include a not-latched active-low disable input with current hysteresis useful for power sequencing or for brownout protection, a current sense input for OCP with frequency shift and delayed shutdown with automatic restart. A higher level OCP latches off the IC if the first-level protection is not sufficient to control the primary current. Their combination offers complete protection against overload and short-circuits. An additional latched disable input (DIS) allows easy implementation of OTP and/or OVP. An interface with the PFC controller is provided that enables the pre-regulator to be switched off during fault conditions, such as OCP shutdown and DIS high, or during burst mode operation.

Where to Buy

Prices starting from US$0.94

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Avnet America
from US$0.94
25,000
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element14
from US$1.18
3,139
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Farnell
from US$1.13
3,046
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RS
from US$1.69
2,275
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TME
from US$1.45
0
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EBV Elektronik
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Features

50% duty cycle, variable frequency control of resonant half bridge
High-accuracy oscillator
Up to 500 kHz 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
600 V-rail compatible high-side gate driver with integrated bootstrap diode and high dv/dt immunity
-300/800 mA high-side and low-side gate drivers with UVLO pull-down
DIP16, SO16N package

Last 6 months Inventory & Pricing History

Resources

Alternative Descriptions

High Voltage Resonant Controller, 8.85V to 16V, NSOIC-16 | Avnet America
HIGH VOLT RESONANT CTRL, -40 TO 150DEG C | element14
High Voltage resonant controller | RS
IC: driver | TME

Frequently Asked Questions

Where can I find additional details, specifications and documents for a L6599ADTR?

Additional datasheets, footprints and schematics for L6599ADTR are listed on our Part Details page. You can also find images and similar parts to L6599ADTR on this page.

What pricing and inventory information can I view?

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What category does L6599ADTR fall under?

The L6599ADTR is listed under Power Management > AC-DC Converters > Digital and Resonant Controllers.

Can I view similar or alternative parts?

You can view similar parts to L6599ADTR when available in the Digital and Resonant Controllers range under the specifications section at the bottom of the details page.

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Is the L6599ADTR RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by STMicroelectronics.

Which authorised distributors for L6599ADTR have stock available?

Authorised distributors including Avnet America, element14, Farnell, RS and TME have stock available or on a lead time for L6599ADTR.

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