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參數(shù)資料
| 型號： | L6599ATDTR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | SOP-16 |
| 文件頁數(shù)： | 23/31頁 |
| 文件大小： | 861K |
| 代理商： | L6599ATDTR |
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L6599AT
Device description
Doc ID 15534 Rev 3
3/31
1
Device description
The L6599AT is a temperature-extended version of the L6599A. It is a double-ended
controller specifically designed for the series-resonant half-bridge topology. It provides a
50% complementary duty cycle: the high-side switch and the low-side switch are driven
ON/OFF at 180° out-of-phase for exactly the same time interval. Output voltage regulation is
obtained by modulating the operating frequency. A fixed dead-time 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 using the bootstrap approach, the IC incorporates a high-
voltage floating structure capable of withstanding 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 start-up, 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.
The device’s functions include a not-latched active-low disable input with current hysteresis
suitable 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 switching off of the pre-
regulator during fault conditions, such as OCP shutdown and DIS high, or during burst-
mode operation.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6599ATN | 制造商:STMicroelectronics 功能描述: |
| L6599D | 功能描述:軟開關(guān) PWM 控制器 Hi Vltg resonant Controller RoHS:否 制造商:Fairchild Semiconductor 輸出端數(shù)量: 輸出電流: 開關(guān)頻率: 工作電源電壓:30 V 電源電流: 最大工作溫度:+ 105 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| L6599DTR | 功能描述:軟開關(guān) PWM 控制器 Hi Vltg resonant Controller RoHS:否 制造商:Fairchild Semiconductor 輸出端數(shù)量: 輸出電流: 開關(guān)頻率: 工作電源電壓:30 V 電源電流: 最大工作溫度:+ 105 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| L6599N | 功能描述:軟開關(guān) PWM 控制器 Hi Vltg resonant Controller RoHS:否 制造商:Fairchild Semiconductor 輸出端數(shù)量: 輸出電流: 開關(guān)頻率: 工作電源電壓:30 V 電源電流: 最大工作溫度:+ 105 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| L6599NR | 功能描述:電壓模式 PWM 控制器 HV resonant CNTRL RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
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