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DS1642-120资料 | |
DS1642-120 PDF Download |
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File Size : 116 KB
Manufacturer:DALLAS Description: The second method to drive LEDs uses a pulsating square wave voltage. The suggested frequency and duty cycle varies for different LEDs; however, the typical frequency used is 1 kHz with a 10 to 30% duty cycle. Pulsing LEDs is the standard method used with multiplexed displays when a single driver circuit is interfaced to multiple LEDs. The current through a pulsed current sourcing driver such as the oscillator circuit shown in Figure 1 is calculated as shown below. |
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1PCS | 100PCS | 1K | 10K | ||
价 格 | |||||
型 号:DS1642-120 厂 家:DALLAS 封 装:DIP 批 号:08+ 数 量:1020 说 明:全新原装大量长期供应 |
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