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ISL8843ABZ - Renesas Electronics

Description: Support is limited to customers who have already adopted these products.The ISL8843 is an industry standard drop-in replacement for the popular 28C43 and 18C43 PWM controllers suitable for a wide range of power conversion applications including boost, flyback, and isolated output configurations. Its fast signal propagation and output switching characteristics make this an ideal product for existing and new designs. Features include 30V operation, low operating current, 90µA start-up current, adjustable oper

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ISL8843ABZ - Renesas Electronics - PCB symbol
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PCB Footprints
ISL8843ABZ - Renesas Electronics PCB footprint - Small Outline Packages - Small Outline Packages - M8.15-00
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ISL8843ABZ - Renesas Electronics - 3D model - Small Outline Packages - M8.15-00
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ISL8843ABZ Details

  • Manufacturer Part Number:

    ISL8843ABZ

  • Brand Name:

    Renesas

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOICN

  • Package Description:

    SOIC-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    M8.15

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    4 Weeks

  • Date Of Intro:

    2017-11-30

  • Manufacturer:

    Renesas Electronics Corporation

  • YTEOL:

    0

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT/VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    9 V

  • Input Voltage-Min:

    8 V

  • Input Voltage-Nom:

    8.4 V

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    105 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Nom:

    1 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max (Isup):

    4 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    2000 kHz

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    MATTE TIN

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    3.9 mm

ISL8843ABZ Frequently Asked Questions (FAQs)

  • Renesas provides a recommended PCB layout in the ISL8843ABZ evaluation board user manual, which includes guidelines for component placement, thermal management, and routing. Following this layout can help ensure optimal performance and minimize noise and EMI issues.
  • The selection of the inductor depends on the specific application requirements, such as the output voltage, current, and frequency. Renesas provides a list of recommended inductors in the datasheet, and engineers can also use online inductor selection tools or consult with inductor manufacturers to find the best option.
  • The maximum junction temperature of the ISL8843ABZ is 150°C, as specified in the datasheet. Engineers should ensure that the device is operated within this temperature range to prevent damage or degradation.
  • The ISL8843ABZ has a built-in overcurrent protection feature that can be enabled by connecting the OCP pin to a resistor and capacitor network. The datasheet provides a detailed description of the OCP circuit and the calculation of the OCP threshold voltage.
  • The ISL8843ABZ is rated for operation up to 125°C, but it can be used in high-temperature environments with proper derating and thermal management. Engineers should consult the datasheet and application notes for guidance on operating the device in high-temperature environments.

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ISL8843ABZ Overview

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