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ISL23428WFVZ-T7A - Renesas Electronics

Description: The ISL23428 is a volatile, low voltage, low noise, low power, 128-tap, dual digitally controlled potentiometer (DCP) with an SPI Bus™ interface. It integrates two DCP cores, wiper switches and control logic on a monolithic CMOS integrated circuit. Each digitally controlled potentiometer is implemented with a combination of resistor elements and CMOS switches. The position of the wipers are controlled by the user through the SPI bus interface. Each potentiometer has an associated volatile Wiper Register (WR

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ISL23428WFVZ-T7A - Renesas Electronics PCB footprint - Small Outline Packages - Small Outline Packages - M14.173-ren1
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ISL23428WFVZ-T7A Details

  • Manufacturer Part Number:

    ISL23428WFVZ-T7A

  • Brand Name:

    Renesas

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    TSSOP

  • Package Description:

    TSSOP-14

  • Pin Count:

    14

  • Manufacturer Package Code:

    M14.173

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Date Of Intro:

    2017-10-19

  • Manufacturer:

    Renesas Electronics Corporation

  • YTEOL:

    0

  • Bandwidth-Nom:

    1.2 kHz

  • Control Interface:

    3-WIRE SERIAL

  • Converter Type:

    DIGITAL POTENTIOMETER

  • JESD-30 Code:

    R-PDSO-G14

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    2

  • Number of Positions:

    128

  • Number of Terminals:

    14

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Resistance Law:

    LINEAR

  • Resistance Tolerance-Max:

    20%

  • Resistor Terminal Voltage-Max:

    5.5 V

  • Seated Height-Max:

    1.2 mm

  • Supply Voltage-Nom:

    3.3 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Coefficient-Nom:

    125 ppm/°C

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Total Resistance-Nom:

    10000 Ω

  • Width:

    4.4 mm

ISL23428WFVZ-T7A Frequently Asked Questions (FAQs)

  • The recommended power-up sequence is to apply VDD first, followed by VSS, and then the I2C clock (SCL) and data (SDA) lines. This sequence helps prevent unwanted device behavior and ensures reliable operation.
  • To minimize power consumption, set the ADC conversion rate to the lowest required frequency, disable the internal voltage reference, and put the device in sleep mode when not in use. Additionally, consider using the device's built-in power-down modes, such as the 'Auto-Power-Down' feature.
  • The ISL23428WFVZ-T7A supports I2C bus speeds up to 400 kHz, which is the standard I2C fast mode.
  • The ISL23428WFVZ-T7A is designed to operate in a single-master I2C bus configuration. While it's possible to use it in a multi-master configuration, it's not recommended, as it may lead to bus contention and data corruption issues.
  • To ensure optimal performance and minimize noise, follow a star-grounding layout, keep analog and digital signals separate, and use shielded cables or traces for sensitive analog signals. Additionally, place decoupling capacitors close to the device's power pins.

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