NJM7815A

NJM7815A


Specifications
Details

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Parameter Symbol Conditions Min Typ Max Unit
Output Voltage Vout No load - 15 - V
Line Regulation Input voltage change 0.004 - 0.01 %/V
Load Regulation Load current from 0 to 1A 0.01 - 0.2 %
Dropout Voltage Vdo Iout = 1A - 1.7 - V
Quiescent Current IQ Typical operating condition - 8 - mA
Ripple Rejection 1kHz 60 - 80 dB
Thermal Shutdown TSD Operating junction temperature - 170 - 掳C
Short-Circuit Current ISC Vout shorted - 2 - A

Instructions for Use:

  1. Installation and Mounting:

    • Ensure proper heat dissipation by mounting the NJM7815A on a heatsink if it is expected to dissipate significant power.
    • Follow standard PCB layout practices to minimize noise and improve stability.
  2. Input Capacitor:

    • It is recommended to place a capacitor (typically 0.33 渭F) at the input to stabilize the regulator against input transients.
  3. Output Capacitor:

    • An output capacitor (typically 0.1 渭F) should be placed close to the output terminal to ensure stability and reduce output noise.
  4. Operating Temperature Range:

    • The device operates reliably within the temperature range of -40掳C to +125掳C.
  5. Handling Short Circuits:

    • The NJM7815A includes internal short-circuit protection, but external fuses or current-limiting resistors may be necessary depending on the application.
  6. Thermal Protection:

    • The regulator features thermal shutdown to protect against overheating. Ensure adequate cooling for continuous operation under heavy loads.
  7. Voltage Regulation:

    • The NJM7815A provides a fixed output voltage of 15V. Verify that this meets your circuit requirements before installation.
  8. Load Regulation:

    • Keep in mind the load regulation when designing circuits where load current varies significantly, as this can affect output voltage stability.
  9. Line Regulation:

    • Consider the line regulation if the input voltage fluctuates, as this can impact the stability of the output voltage.
(For reference only)

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