- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄381150 > UC3843AQ PDF資料下載
參數(shù)資料
| 型號： | UC3843AQ |
| 文件頁數(shù)： | 6/8頁 |
| 文件大?。?/td> | 530K |
| 代理商： | UC3843AQ |
6
UC1842A/3A/4A/5A
UC2842A/3A/4A/5A
APPLICATIONS DATA (cont.)
Oscillator Section
Open-Loop Laboratory Test Fixture
Oscillator Frequency vs Timing Resistance
Maximum Duty Cycle vs Timing Resistor
High peak currents associated with capacitive loads necessi-
tate careful grounding techniques. Timing and bypass capaci-
tors should be connected close to pin 5 in a single point
ground. The transistor and 5k potentiometer are used to sam-
ple the oscillator waveform and apply an adjustable ramp to
pin 3.
Slope Compensation
A fraction of the oscillator ramp can be resistively
summed with the current sense signal to provide slope
compensation for converters requiring duty cycles over
50%.
Note that capacitor, C, forms a filter with R2 to suppress
the leading edge switch spikes.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UC1843AL | Multifunction voltage regulator for car radio |
| UC1844AL | Single chip RDS demodulator |
| UC1845AL | Digital controlled stereo audio processor with loudness |
| UC2849DW | Current-Mode SMPS Controller |
| UC3849DW | Low voltage high speed IEEE1284 transceiver with error-free power-up |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UC3843AQTR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Current-Mode SMPS Controller |
| UC3843A-S08-R | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:CURRENT MODE PWM CONTROL CIRCUITS |
| UC3843A-S08-T | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:CURRENT MODE PWM CONTROL CIRCUITS |
| UC3843AY | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| UC3843B | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:HIGH PERFORMANCE CURRENT MODE CONTROLLERS |
發(fā)布緊急采購，3分鐘左右您將得到回復。