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Integrated Relay Driver Improves Control of Inductive Load

2017/1/21 17:48:23

The DRDC3105 integrates a complete solid-state relay driver into a single, surface-mount package, minimizing the PCB footprint, reducing component count and improving the reliability of inductive load control circuits. Providing a rugged interface between standard logic and 3V to 6V DC inductive loads, the relay driver is designed to handle relays, solenoids, incandescent lamps and small motors in a wide range of applications. From a 5V supply rail, the DRDC3105 can drive coils rated at up to 2.5W. Offered in single and dual driver configurations and housed respectively in SOT23 and SOT26 packages, the new driver can replace between three and six discrete components. With a Zener diode included across the device’s bipolar transistor output, the need for an external free-wheeling diode is removed, and by clamping at 6.6V the Zener also sinks inductive currents to ground, thereby reducing noise due to EMI. The DRDC3105 relay driver is priced at $0.09 each/10,000 for the single driver package and $0.15 each for the dual driver package
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    certainly.90

    2017/1/23 17:48:23

    What you share on your post is quite useful.

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    Markus Schmitz

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