Product overview
概要
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.
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All 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
回路ダイアグラム
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注目ビデオ
All tools & software
All resources
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製品スペック (1)
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| 21 Jun 2017 |
21 Jun 2017
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アプリケーションノート (1)
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| 13 Sep 2018 |
13 Sep 2018
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ツール&ソフトウェア用アプリケーション・ノート (1)
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| 13 Dec 2018 |
13 Dec 2018
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プレゼンテーション (2)
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21 Jun 2018
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パンフレット (1)
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| 29 Jul 2020 |
29 Jul 2020
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EDA Symbols, Footprints and 3D Models
STMicroelectronics - L6599AT
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
Symbols
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品質 & 信頼性
| 製品型番 | Marketing Status | パッケージ | グレード | RoHSコンプライアンスグレード | 材料宣誓書** |
|---|---|---|---|---|---|
| L6599ATD |
量産中
|
SO-16 | インダストリアル | Ecopack2 | |
| L6599ATDTR |
量産中
|
SO-16 | インダストリアル | Ecopack2 |
(**) st.comで提供している材料宣誓書は、パッケージ･ファミリ内で最も一般的に使用されているパッケージに基づく汎用ドキュメントの場合があります。そのため、特定の製品では100%正確ではない可能性があります。特定の製品情報については、セールスサポートまでお問い合わせください
サンプル & 購入
| 製品型番 | 販売代理店から購入 | STから購入 | 製品ステータス | ECCN (US) | ECCN (EU) | 梱包タイプ | パッケージ | 温度（℃） | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小 | 最大 | |||||||||||
| L6599ATDTR | 4 distributors | Free Sample Buy Direct |
量産中
|
EAR99 | NEC | Tape And Reel | SO-16 | - | - | CHINA | 1.17 / 1k | |
| L6599ATD | 3 distributors | Buy Direct |
量産中
|
EAR99 | NEC | Tube | SO-16 | - | - | CHINA | 1.17 / 1k | |
（*）概算用の希望小売単価（US$）です。現地通貨でのお見積りについては、STのセールス･オフィスまたは販売代理店までお問い合わせください。
