Please enter a minimum 3 letters or numbers
Technical Content
Part Image

UC3842BD1 - STMicroelectronics

Description: High performance current mode PWM controller

Download UC3842BD1 Model
Schematic
symbols
Schematic symbol is unavailable for download
PCB
footprints
PCB footprint is unavailable for download
3D
models
3D model is unavailable for download
Send part feedback
Symbol
UC3842BD1 - STMicroelectronics - PCB symbol
click to zoom
PCB Footprints
UC3842BD1 - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - SO8 HEIGHT 1.75
click to zoom
3D Models
UC3842BD1 - STMicroelectronics - 3D model - Small Outline Packages - SO8 HEIGHT 1.75
click to zoom

UC3842BD1 Details

  • Manufacturer Part Number:

    UC3842BD1

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Package Description:

    SO-8

  • Pin Count:

    8

  • Country Of Origin:

    Morocco

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    14 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    7

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    30 V

  • Input Voltage-Min:

    11.5 V

  • Input Voltage-Nom:

    15 V

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e4

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    70 °C

  • Output Current-Max:

    1 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    NOT SPECIFIED

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    SINGLE

  • Switching Frequency-Max:

    500 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    NOT SPECIFIED

  • Width:

    3.9 mm

UC3842BD1 Frequently Asked Questions (FAQs)

  • The recommended operating voltage range for the UC3842BD1 is 12V to 28V, with a maximum rating of 30V.
  • The choice of resistor values for the oscillator circuit depends on the desired switching frequency. A good starting point is to use the values recommended in the datasheet, and then adjust them based on the specific application requirements.
  • The soft-start pin (SS) is used to gradually increase the output voltage during startup, reducing inrush currents and electromagnetic interference (EMI). To use it, connect a capacitor from the SS pin to ground, and a resistor from the SS pin to the output voltage. The capacitor value determines the soft-start time.
  • To ensure stability, follow the layout guidelines in the datasheet, use a low-ESR output capacitor, and add a small capacitor (e.g., 10nF) between the Vcc pin and ground. Additionally, ensure that the feedback loop is properly compensated and the gain is set correctly.
  • The UC3842BD1 can deliver up to 1A of output current, but this depends on the specific application and the external components used. It's essential to check the thermal performance and ensure that the device is properly heat-sinked.

Trust Checks

This model has been built in collaboration with the manufacturer.
Manufacturer Collaborated
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored

UC3842BD1 Overview

Use the download button to access the UC3842BD1 schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like UC384, or try a keyword search, such as Switching Regulator or Controllers

About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

Parts related to UC3842BD1

Showing 0 results

Part Image

← Prev Next →
About Us Contact Us Terms of Service Do not sell or share my personal information Privacy Policy Digital Services Act Library Loader Twitter LinkedIn

All content Copyright © 2020, Supplyframe.com. All rights reserved. Back to top ↑

UC3842BD1 Alternates

Showing results

Image Part Number Model
Part Image LT1242CS8#TRPBF Linear Technology

Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8
Part Image UC2842BD1 Motorola Semiconductor Products

Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8
Part Image LT1242CS8 Linear Technology

Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8
Part Image UC3842BVD1G onsemi

Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8
Part Image LT1242IS8#TR Analog Devices Inc

Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8
For a full list of alternate parts for UC3842BD1, check out Findchips.com