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| 型号： | L6599ATDTR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | SOP-16 |
| 文件页数： | 23/31页 |
| 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.
相关PDF资料 |
PDF描述 |
|---|---|
| L6599D | 0.8 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16 |
| L6599N | 0.8 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDIP16 |
| L6599TR | 0.8 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16 |
| L6610D | 6-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO24 |
| L6610N | 6-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| L6599ATN | 制造商:STMicroelectronics 功能描述: |
| L6599D | 功能描述:软开关 PWM 控制器 Hi Vltg resonant Controller RoHS:否 制造商:Fairchild Semiconductor 输出端数量: 输出电流: 开关频率: 工作电源电压:30 V 电源电流: 最大工作温度:+ 105 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| L6599DTR | 功能描述:软开关 PWM 控制器 Hi Vltg resonant Controller RoHS:否 制造商:Fairchild Semiconductor 输出端数量: 输出电流: 开关频率: 工作电源电压:30 V 电源电流: 最大工作温度:+ 105 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| L6599N | 功能描述:软开关 PWM 控制器 Hi Vltg resonant Controller RoHS:否 制造商:Fairchild Semiconductor 输出端数量: 输出电流: 开关频率: 工作电源电压:30 V 电源电流: 最大工作温度:+ 105 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| L6599NR | 功能描述:电压模式 PWM 控制器 HV resonant CNTRL RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
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