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CAT1021WI-30-GT3 - onsemi

Description: Precision power supply voltage monitor - 5.0 V, 3.3 V and 3.0 V systems - Five threshold voltage options; Watchdog timer; Active high or low reset - Valid reset guaranteed at VCC = 1 V; 400 kHz I²C bus; Built-in inadvertent write protection — WP pin; 16-Byte page write buffer; 1,000,000 Program/Erase cycles; Low power CMOS technology; 3.0 V to 5.5 V operation; Manual reset input; 100 year data retention; 8-pin DIP, SOIC, TSSOP, MSOP or TDFN (3 x 3 mm foot-print) packages — TDFN max height is 0.8mm; Industri

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CAT1021WI-30-GT3 - onsemi PCB footprint - Small Outline Packages - Small Outline Packages - SOIC−8, 150 mils CASE 751BD ISSUE O
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CAT1021WI-30-GT3 - onsemi  - 3D model - Small Outline Packages - SOIC−8, 150 mils CASE 751BD ISSUE O
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CAT1021WI-30-GT3 Details

  • Manufacturer Part Number:

    CAT1021WI-30-GT3

  • Brand Name:

    onsemi

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC 8, 150 mils

  • Pin Count:

    8

  • Manufacturer Package Code:

    751BD

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    4 Weeks

  • Manufacturer:

    onsemi

  • YTEOL:

    0

  • Additional Feature:

    BAT BUP SW:N;MNL RST:Y;OV DET:N;PW FL IP:N;PW FL IO:N;PW FL OP:N;PRG RST DLY:N;UV DET:N;WD:Y;WWD:N

  • Adjustable Threshold:

    NO

  • Analog IC - Other Type:

    VOLTAGE SUPERVISOR/RESET IC

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e4

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Channels:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    2.7 V

  • Supply Voltage-Nom (Vsup):

    3.3 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    NICKEL PALLADIUM GOLD

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Threshold Voltage-Nom:

    +3.075V

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

    30

  • Width:

    3.9 mm

CAT1021WI-30-GT3 Frequently Asked Questions (FAQs)

  • The recommended PCB layout for the CAT1021WI-30-GT3 involves placing the device near the battery, using a solid ground plane, and keeping the traces to the battery and other components as short as possible to minimize noise and EMI.
  • To ensure proper power-on and power-off, the CAT1021WI-30-GT3 requires a power-up sequence where VCC is applied before VBAT, and power-down sequence where VBAT is removed before VCC. Additionally, a 10kΩ pull-up resistor on the SCL line is recommended.
  • The CAT1021WI-30-GT3 has an operating temperature range of -40°C to +85°C, but it's recommended to operate within -20°C to +70°C for optimal performance and reliability.
  • During power-down or reset, the I2C bus should be held in a high-impedance state to prevent bus contention. This can be achieved by using a bus buffer or a dedicated I2C controller with built-in bus hold functionality.
  • The recommended capacitor value for the VBAT pin is 1μF to 10μF, depending on the application's power requirements and noise tolerance. A larger capacitor value can help filter out noise and improve overall system reliability.

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CAT1021WI-30-GT3 Overview

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