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PS9821-1-F3-AX - Renesas Electronics

Description: The PS9821-1 and PS9821-2 are active-low type high-speed photocouplers that use a GaAlAs light-emitting diode on the input side and a photodetector IC that includes a photodiode and a signal processor on the same chip on the output side. The PS9821-1, -2 are designed specifically for high common mode transient immunity (CMR) and low pulse width distortion, PS9821-2 is suitable for high density applications.

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PS9821-1-F3-AX - Renesas Electronics - PCB symbol
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PS9821-1-F3-AX - Renesas Electronics PCB footprint - Small Outline Packages - Small Outline Packages - PS9822
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PS9821-1-F3-AX Details

  • Manufacturer Part Number:

    PS9821-1-F3-AX

  • Brand Name:

    Renesas

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    SSOP-8

  • Country Of Origin:

    Japan

  • HTS Code:

    8541.40.80.00

  • Factory Lead Time:

    18 Weeks

  • Manufacturer:

    Renesas Electronics Corporation

  • YTEOL:

    6

  • Additional Feature:

    UL RECOGNIZED

  • Configuration:

    SINGLE

  • Data Rate-Nom:

    15 MBps

  • Forward Current-Max:

    0.02 A

  • Isolation Voltage-Max:

    2500 V

  • JESD-609 Code:

    e4

  • Mounting Feature:

    SURFACE MOUNT

  • Number of Elements:

    1

  • Number of Functions:

    1

  • On-State Current-Max:

    0.025 A

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Optoelectronic Device Type:

    LOGIC IC OUTPUT OPTOCOUPLER

  • Packing Method:

    TR, EMBOSSED, 13 INCH

  • Response Time-Nom:

    2e-8 ns

  • Supply Voltage-Min:

    2.7 V

  • Surface Mount:

    YES

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

PS9821-1-F3-AX Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and thermal vias is recommended. Ensure that the thermal pad is connected to a large copper area to dissipate heat efficiently.
  • Use a high-precision voltage reference, such as a 0.5% or better resistor divider network, and ensure that the output voltage is measured directly at the output pin to minimize errors.
  • The maximum input voltage is 18V, but it's recommended to keep it below 15V to ensure reliable operation and minimize power dissipation.
  • Connect a capacitor between the POR pin and GND, and a resistor between the BOR pin and VIN. The POR capacitor value depends on the desired reset timing, and the BOR resistor value depends on the desired brown-out detection threshold.
  • Use a 10uF to 22uF X5R or X7R ceramic capacitor with a voltage rating of 25V or higher, placed as close as possible to the VIN pin to minimize noise and ripple.

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PS9821-1-F3-AX Overview

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