L6599ATDTR AC-DC Converters by STMicroelectronics

IMPROVED HIGH-VOLTAGE RESONANT CONTROLLER

Semiconductors - ICs
> Special Function
Status: Active
Series: L6599AT
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock
The L6599AT is an improved revision of the previous L6599A. 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$1.83

Distributor Stock
Logo for element14 Singapore
element14
from US$1.83
1,969
in stock
 Buy Now
Logo for Farnell UK
Farnell
from US$5.26
1,969
in stock
 Buy Now
Logo for Avnet America
Avnet America
from US$5.42
0
in stock
 Buy Now
Logo for EBV Elektronik
EBV Elektronik
-
0
in stock
 Buy Now
Logo for Avnet Silica
Avnet Silica
-
0
in stock
 Buy Now
Buy Now

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
-300/700 mA high-side and low-side gate drivers with UVLO pull-down
Guaranteed for extreme temperature ranges

Last 6 months Inventory & Pricing History

Alternative Descriptions

HIGH VOLT RESONANT CTRL, -40 TO 150DEG C | element14
High Voltage Resonant Controller 16-Pin SO N T/R | Avnet America

Frequently Asked Questions

Where can I find additional details, specifications and documents for a L6599ATDTR?

Additional datasheets, footprints and schematics for L6599ATDTR are listed on our Part Details page. You can also find images and similar parts to L6599ATDTR on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for L6599ATDTR on our Product Comparison page. Access via the 'View Pricing & Stock' button to view L6599ATDTR price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does L6599ATDTR fall under?

The L6599ATDTR 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 L6599ATDTR when available in the Digital and Resonant Controllers range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the L6599ATDTR you can contact the distributor directly for product support, shipping queries etc.

Is the L6599ATDTR RoHS compliant?

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

Which authorised distributors for L6599ATDTR have stock available?

Authorised distributors including element14, Farnell, Avnet America, EBV Elektronik and Avnet Silica have stock available or on a lead time for L6599ATDTR.

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for L6599ATDTR often in real-time on the comparison pages.

What if I can't find stock of L6599ATDTR?

You can fill out our help required form which you can use to request a quote for L6599ATDTR from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.