tps62302drcr资料 | |
tps62302drcr |
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file size : 116 kb
manufacturer: description:the uc1524 is a fixed-frequency pulse-width-modulation voltage regulator control circuit. the regulator operates at a frequency that is programmed by one timing resistor (rt), and one timing capacitor (ct), rt establishes a constant charging current for ct. this results in a linear voltage ramp at ct, which is fed to the comparator provid- ing linear control of the output pulse width by the error amplifier. the uc1524 contains an on-board 5v regulator that serves as a reference as well as powering the uc1524s internal control circuitry and is also useful in supplying external support functions. this reference volt- age is lowered externally by a resistor divider to provide a reference within the common-mode range of the error amplifier or an external reference may be used. the power supply output is sensed by a second resistor di- vider network to generate a feedback signal to the error amplifier. the amplifier output voltage is then compared to the linear voltage ramp at ct. the resulting modulated pulse out of the high-gain comparator is then steered to |
1pcs | 100pcs | 1k | 10k | ||
型 号:tps62302drcr 厂 家: 封 装:0633 批 号:dip/sop 数 量:5494 说 明: |
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运 费: 所在地: 新旧程度: |
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