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參數(shù)資料
| 型號： | UC1843AL |
| 英文描述： | Multifunction voltage regulator for car radio |
| 文件頁數(shù)： | 6/8頁 |
| 文件大?。?/td> | 530K |
| 代理商： | UC1843AL |
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.
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| UC1843AL883B | 制造商:Texas Instruments 功能描述:Current Mode PWM Controller 1A 20-Pin LCCC Tube |
| UC1843ALQMLV | 制造商:Texas Instruments 功能描述:CURRENT MODE PWM CNTRLR 1A 20LCCC - Rail/Tube |
| UC1843AMDREP | 功能描述:電流型 PWM 控制器 Mil Enh Current-Mode PWM Cntrlr RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| UC1843AMDREP | 制造商:Texas Instruments 功能描述:IC CURR-MODE PWM CTRLR 8-SOIC |
| UC1843AMDREPG4 | 功能描述:電流型 PWM 控制器 EP Crnt-Mode Pwm Controller RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
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