This section tells you how to make the device work reliably. For an SN51DP, pay attention to:
If the SN51DP refers to a very specific or potentially obsolete part, or if it's a less common component, you might need to: sn51dp datasheet pdf
The SN51DP is not a low-side MOSFET; it has a voltage drop of 1.0–1.6V when saturated. Account for this when calculating load voltage. For a 5V relay coil, the coil will only see ~3.5V if driven from a 5V supply. Always use a supply at least 2V higher than the rated coil voltage. This section tells you how to make the device work reliably
Bookmark this article, download your datasheet, and power up your next project with confidence. For a 5V relay coil, the coil will only see ~3
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LCD power supply Integrated Circuit (IC) / Power Management Chip Package Type: MOSP-10 / MSOP-10