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參數(shù)資料
| 型號(hào)： | L6598D013TR |
| 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)： | 11/17頁(yè) |
| 文件大小： | 166K |
| 代理商： | L6598D013TR |
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L6598
3.4 OP AMP Section
The integrated OP AMP is designed to offer Low Output Impedance, wide band, High input Impedance and wide
Common Mode Range. It can be readily used to implement protection features or a closed loop control. For this
purpose the OP AMP Output can be properly connected to R
fmin
pin to adjust the oscillation frequency.
3.5 Comparators
Two CMOS comparators are available to perform protection schemes. Short pulses (>= 200ns) on Comparators
Input are recognised. The EN1 input (active High), has a threshold of 0.6V (typical value) forces the device in a
latched shut down state (e.g. LVG Low, HVG low, Oscillator stopped), as in the Under Voltage Conditions. Nor-
mal Operating conditions are resumed after a power-off power-on sequence. The EN2 input (active high), with
a threshold of 1.2V (typical value) restarts a Soft Start sequence (see Timing Diagrams). In addition the EN2
Comparator, when activated, removes a latched shutdown caused by EN1.
Figure 15. Switching Time Waveform Definitions
Figure 16. Dead Time and Duty Cycle Waveform Definition
90%
90%
10%
10%
tf
tr
LVG
90%
90%
10%
10%
tf
tr
HVG
D98IN898
LVG
HVG
t d
50%
50%
t d
50%
50%
T1
50%
Tperiod
Dc =
Tperiod
T1
D98IN899
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| L6599AD | 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(kāi)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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