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參數(shù)資料
| 型號(hào)： | UC3844DX |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 中文描述： | 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO14 |
| 封裝： | SOP-14 |
| 文件頁數(shù)： | 16/20頁 |
| 文件大?。?/td> | 249K |
| 代理商： | UC3844DX |
UC3842/UC3843/UC3844/UC3845
5
Figure 2. Under Voltage Lockout
During Under-Voltage Lock-Out, the output driver is biased to a high impedance state. Pin 6 should be shunted to ground with
a bleeder resistor to prevent activating the power switch with output leakage current.
Figure 3. Error Amp Configuration
Figure 4. Current Sense Circuit
Peak current (IS) is determined by the formula:
A small RC filter may be required to suppress switch transients.
UC3842/44 UC3843/45
I
S MAX
() 1.0V
R
S
------------
=
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| UC3844G-D08-T | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS |
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