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

电路原理图

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L6599ADTR SO-16 Tape And Reel
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0.836 1000 EAR99 CHINA 查看供货情况

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代理商库存报告日期: 2019-11-14

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代理商库存报告日期: 2019-11-14

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L6599AD SO-16 Tube
批量生产
0.836 1000 EAR99 CHINA 查看供货情况

Distributor availability ofL6599AD

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 817 1 Order Now
Newark Element14 AMERICA 1008 0 Order Now
MOUSER WORLDWIDE 1672 1 Order Now
Farnell Element14 EUROPE 769 1 Order Now

代理商库存报告日期: 2019-11-14

代理商名称

DIGIKEY

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817

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1

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Newark Element14

库存

1008

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0

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1672

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1

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Farnell Element14

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769

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1

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EUROPE Order Now

代理商库存报告日期: 2019-11-14

立即购买

L6599ADTR

封装

SO-16

包装类型

Tape And Reel

单价(US$)

0.836*

Distributor availability ofL6599ADTR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 1398 1 Order Now
ARROW EUROPE 15000 0 Order Now
ARROW AMERICA 11183 1 Order Now
MOUSER WORLDWIDE 3812 1 Order Now
Farnell Element14 EUROPE 4587 1 Order Now

代理商库存报告日期: 2019-11-14

代理商名称

DIGIKEY

库存

1398

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

15000

Min.Order

0

地区

EUROPE Order Now

ARROW

库存

11183

Min.Order

1

地区

AMERICA Order Now

MOUSER

库存

3812

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

4587

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-11-14

供货状态

批量生产

单价(US$)

0.836

数量

1000

ECCN (US)

EAR99

Country of Origin

CHINA

L6599AD

封装

SO-16

包装类型

Tube

单价(US$)

0.836*

Distributor availability ofL6599AD

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 817 1 Order Now
Newark Element14 AMERICA 1008 0 Order Now
MOUSER WORLDWIDE 1672 1 Order Now
Farnell Element14 EUROPE 769 1 Order Now

代理商库存报告日期: 2019-11-14

代理商名称

DIGIKEY

库存

817

Min.Order

1

地区

WORLDWIDE Order Now

Newark Element14

库存

1008

Min.Order

0

地区

AMERICA Order Now

MOUSER

库存

1672

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

769

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-11-14

供货状态

批量生产

单价(US$)

0.836

数量

1000

ECCN (US)

EAR99

Country of Origin

CHINA

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商

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产品型号 供货状态 封装 等级规格 符合RoHS级别 Material Declaration**
L6599AD
批量生产
SO-16 工业 Ecopack2
L6599ADTR
批量生产
SO-16 工业 Ecopack2

L6599AD

Package:

SO-16

Material Declaration**:

Marketing Status

批量生产

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6599ADTR

Package:

SO-16

Material Declaration**:

Marketing Status

批量生产

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.