Part Image

UC3845D8G4 - Texas Instruments

Description: TEXAS INSTRUMENTS - UC3845D8G4 - Current Mode PWM Controller, 12V-25V supply, 450kHz, 5V/200mA out, SOIC-8

Download UC3845D8G4 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
PCB Footprints
UC3845D8G4 - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D0008A
click to zoom
3D Models
UC3845D8G4 - Texas Instruments  - 3D model - Small Outline Packages - D0008A
click to zoom

UC3845D8G4 Details

  • Manufacturer Part Number:

    UC3845D8G4

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    GREEN, PLASTIC, MS-012AA, SOIC-8

  • Pin Count:

    8

  • Country Of Origin:

    Mexico

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    28 V

  • Input Voltage-Min:

    8.2 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

  • Output Voltage-Nom:

    5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max (Isup):

    25 mA

  • Supply Voltage-Max (Vsup):

    28 V

  • Supply Voltage-Min (Vsup):

    8.4 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    500 kHz

  • Technology:

    BICMOS

  • 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

UC3845D8G4 Frequently Asked Questions (FAQs)

  • The maximum operating frequency of UC3845D8G4 is 500 kHz, but it can be extended up to 1 MHz with proper design and layout considerations.
  • To ensure stable operation, make sure to follow the recommended layout guidelines, use a stable voltage supply, and decouple the IC properly. Also, ensure that the feedback loop is properly compensated and the output voltage is within the specified range.
  • The soft-start pin (SS) is used to control the output voltage rise time during startup. It helps to reduce the inrush current and prevents output voltage overshoot. A capacitor connected to this pin determines the soft-start time.
  • Yes, UC3845D8G4 can be used for isolated flyback converter designs. However, you need to ensure that the feedback loop is properly isolated using an optocoupler or a transformer, and the IC is properly biased and configured for isolated operation.
  • The minimum input voltage is typically 8.5V, and the maximum input voltage is 18V. However, the actual input voltage range may vary depending on the specific application and design requirements. Consult the datasheet and application notes for more information.

Trust Checks

This model has been provided by community users.
Community Provided
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored

UC3845D8G4 Overview

Use the download button to access the UC3845D8G4 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 Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

Parts related to UC3845D8G4

Showing 0 results

UC3845D8G4 Alternates

Showing results

Image Part Number Model
Part Image UC3845D8TR Texas Instruments

Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BICMOS, PDSO8

Part Image UC3845D8TRG4 Texas Instruments

Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BICMOS, PDSO8