Home > Electronic > A list of electronic devices

A list of electronic devices

There is a list of electronic devices which are very cheap but they are really valuable for general electronic purposes.

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ULN2001/2002/2003/2004 A :

This ICs includes the seven darlingtons BJT transistors. Its absolute maximum ratings are

ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
Vo Output Voltage 50 V
Vin Input Voltage (for ULN2002A/D – 2003A/D – 2004A/D) 30 V
Ic Continuous Collector Current 500 mA
Ib Continuous Base Current 25 mA
Tamb Operating Ambient Temperature Range – 20 to 85 °C
Tstg Storage Temperature Range – 55 to 150 °C
Tj Junction Temperature 150 °C

So we can use them to drive small Stepper motors.

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L200:

It is an adjustable voltage regulator with adjustable output current limitation. This IC is one of best choices for designing protected  power supplies and charging circuit for batteries especially for  sealed-lead-acid batteries.

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Categories: Electronic
  1. Omid
    October 30, 2009 at 4:40 AM | #1

    hi
    that was so helpful
    tank you

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