Improved high-voltage resonant controller

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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.

    Key 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

Circuit Diagram

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L6599ADTR SO-16 Tape And Reel
Active
0.836 1000 EAR99 CHINA Check Availability

Distributor availability ofL6599ADTR

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DIGIKEY WORLDWIDE 1748 1 Order Now
ARROW EUROPE 17500 0 Order Now
ARROW AMERICA 1183 1 Order Now
MOUSER WORLDWIDE 3826 1 Order Now
Farnell Element14 EUROPE 4590 1 Order Now

Distributor reported inventory date: 2019-10-15

Distributor Name

DIGIKEY

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1748

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1

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WORLDWIDE Order Now

ARROW

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17500

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0

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EUROPE Order Now

ARROW

Stock

1183

Min.Order

1

Region

AMERICA Order Now

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3826

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1

Region

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Farnell Element14

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4590

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1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-10-15

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L6599AD SO-16 Tube
Active
0.836 1000 EAR99 CHINA Check Availability

Distributor availability ofL6599AD

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 841 1 Order Now
Newark Element14 AMERICA 1008 0 Order Now
MOUSER WORLDWIDE 1709 1 Order Now
Farnell Element14 EUROPE 950 1 Order Now

Distributor reported inventory date: 2019-10-15

Distributor Name

DIGIKEY

Stock

841

Min.Order

1

Region

WORLDWIDE Order Now

Newark Element14

Stock

1008

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1709

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

950

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-10-15

Buy now

L6599ADTR

Package

SO-16

Packing Type

Tape And Reel

Unit Price (US$)

0.836*

Distributor availability ofL6599ADTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1748 1 Order Now
ARROW EUROPE 17500 0 Order Now
ARROW AMERICA 1183 1 Order Now
MOUSER WORLDWIDE 3826 1 Order Now
Farnell Element14 EUROPE 4590 1 Order Now

Distributor reported inventory date: 2019-10-15

Distributor Name

DIGIKEY

Stock

1748

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

17500

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

1183

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

3826

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4590

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-10-15

Marketing Status

Active

Unit Price (US$)

0.836

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

L6599AD

Package

SO-16

Packing Type

Tube

Unit Price (US$)

0.836*

Distributor availability ofL6599AD

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 841 1 Order Now
Newark Element14 AMERICA 1008 0 Order Now
MOUSER WORLDWIDE 1709 1 Order Now
Farnell Element14 EUROPE 950 1 Order Now

Distributor reported inventory date: 2019-10-15

Distributor Name

DIGIKEY

Stock

841

Min.Order

1

Region

WORLDWIDE Order Now

Newark Element14

Stock

1008

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1709

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

950

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-10-15

Marketing Status

Active

Unit Price (US$)

0.836

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

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00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS6027
      Improved high-voltage resonant controller
      8.0
      1.87 MB
      PDF
      DS6027

      Improved high-voltage resonant controller

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      19 V - 90 W adapter with PFC for Laptop computers using the L6563H and L6599A
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      AN3014
      19 V, 90 W resonant converter with synchronous rectification using L6563H, L6599A and SRK2000A
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      AN3233

      12 V - 150 W resonant converter with synchronous rectification using L6563H, L6599A, and SRK2000A

      AN3329

      170 W power supply with PFC and standby supply for flat TV using the L6564, L6599A, and Viper27LN

      AN3339

      185 W power supply with PFC and standby supply for LED TV using the L6564, L6599A, and VIPER27LN

      AN3172

      19 V - 90 W adapter with PFC for Laptop computers using the L6563H and L6599A

      AN3014

      19 V, 90 W resonant converter with synchronous rectification using L6563H, L6599A and SRK2000A

    • Description Version Size Action
      DT0009
      Speed up development of the L6699 with the L6599A and flexible PCB layout
      1.2
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      DT0009

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    • Description Version Size Action
      AN3172
      19 V - 90 W adapter with PFC for Laptop computers using the L6563H and L6599A
      2.0
      1.13 MB
      PDF
      AN3172

      19 V - 90 W adapter with PFC for Laptop computers using the L6563H and L6599A

HW Model, CAD Libraries & SVD

    • Description Version Size Action
      L6599A SIMPLIS MAROTTA encrypted 1.0
      145.04 KB
      ZIP
      SPICE macro model for L6599A 2.0
      86.21 KB
      ZIP

      L6599A SIMPLIS MAROTTA encrypted

      SPICE macro model for L6599A

Presentations & Training Material

    • Description Version Size Action
      Primary side regulation controllers portfolio
      1.1 MB
      PDF

      Primary side regulation controllers portfolio

Publications and Collaterals

    • Description Version Size Action
      Power Management Guide 06.2019
      5.5 MB
      PDF

      Power Management Guide

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L6599AD
Active
SO-16 Industrial Ecopack2
L6599ADTR
Active
SO-16 Industrial Ecopack2

L6599AD

Package:

SO-16

Material Declaration**:

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6599ADTR

Package:

SO-16

Material Declaration**:

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.