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  • The L6599AF 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.

    主要特性

    • 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 temperatures as low as -50 °C

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质量与可靠性

产品型号 Marketing Status 封装 等级规格 符合RoHS级别 材料声明**
L6599AFD
批量生产
SO-16 工业 Ecopack2
L6599AFDTR
批量生产
SO-16 工业 Ecopack2

L6599AFD

Package:

SO-16

Material Declaration**:

Marketing Status

批量生产

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6599AFDTR

Package:

SO-16

Material Declaration**:

Marketing Status

批量生产

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此,它们可能不是100%适用于特定的设备。有关特定设备的信息,请联系 销售支持

样片和购买

产品型号
从分销商订购
从ST订购
供货状态
ECCN (US)
ECCN (EU)
包装类型
封装
温度(ºC) Country of Origin
Budgetary Price (US$)*/Qty
最小值
最大值
L6599AFDTR Available at 1 distributors

...的经销商可用性L6599AFDTR

代理商名称
地区 库存 最小订购量 第三方链接
MOUSER WORLDWIDE 85 1 马上订购

代理商库存报告日期: 2020-08-10

代理商名称

MOUSER

库存

85

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2020-08-10

立即购买
批量生产
EAR99 NEC Tape And Reel SO-16 - - CHINA
L6599AFD 没有经销商,请联系我们的销售办事处 立即购买
批量生产
EAR99 NEC Tube SO-16 - - CHINA

L6599AFDTR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

...的经销商可用性L6599AFDTR

代理商名称
地区 库存 最小订购量 第三方链接
MOUSER WORLDWIDE 85 1 马上订购

代理商库存报告日期: 2020-08-10

代理商名称

MOUSER

库存

85

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2020-08-10

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

SO-16

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

Country of Origin

CHINA

L6599AFD

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

ECCN (EU)

NEC

包装类型

Tube

封装

SO-16

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

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