參數(shù)資料
型號(hào)： L6599
廠商： 意法半導(dǎo)體
英文描述： High-voltage resonant controller
中文描述： 高壓諧振控制器
文件頁(yè)數(shù)： 17/36頁(yè)
文件大?。?/td> 591K
代理商： L6599
L6599
Application information
17/36
After fixing CF in the hundred pF or in the nF (consistently with the maximum source
capability of the RF
min
pin and trading this off against the total consumption of the device),
the value of RF
min
and RF
max
will be selected so that the oscillator frequency is able to
cover the entire range needed for regulation, from the minimum value f
min
(at minimum input
voltage and maximum load) to the maximum value f
max
(at maximum input voltage and
minimum load):
A different selection criterion will be given for RF
max
in case burst-mode operation at no-load
will be used (see "Operation at no load or very light load" section).
Figure 22. Oscillator waveforms and their relationship with gate-driving signals
In
Figure 22
the timing relationship between the oscillator waveform and the gate-drive
signals, as well as the swinging node of the half-bridge leg (HB) is shown. Note that the low-
side gate-drive is turned on while the oscillator's triangle is ramping up and the high-side
gate-drive is turned on while the triangle is ramping down. In this way, at start-up, or as the
IC resumes switching during burst-mode operation, the low-side MOSFET will be switched
on first to charge the bootstrap capacitor. As a result, the bootstrap capacitor will always be
charged and ready to supply the high-side floating driver.
RF
min
3
CF
f
min
-----------------------------------
=
RF
max
RF
f
min
----------
1
–
--------------------
=
CF
HVG
t
t
LVG
t
HB
t
T
D
T
D
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6599_0807 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:High-voltage resonant controller
L6599A 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Improved high-voltage resonant controller
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L6599ADTR 功能描述:電壓模式 PWM 控制器 Hi-Volt resonant controller RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(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
L6599AFD 功能描述:Power Supply Controller Resonant Converter Controller 16-SO 制造商:stmicroelectronics 系列:- 包裝:管件 零件狀態(tài):有效 應(yīng)用:諧振轉(zhuǎn)換器控制器 電壓 - 輸入:- 電壓 - 電源:8.85 V ~ 16 V 電流 - 電源:3.5mA 工作溫度:-50°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商器件封裝:16-SO 標(biāo)準(zhǔn)包裝:50
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