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

UC2845BD1 - STMicroelectronics

Description: UC2845BD1, PWM Current Mode Controller, 1 A Boost, Flyback, 500 kHz 8-Pin SOIC

Download UC2845BD1 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
UC2845BD1 - STMicroelectronics - PCB symbol
click to zoom
PCB Footprints
UC2845BD1 - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - SO-8-2020-8
click to zoom
3D Models
UC2845BD1 - STMicroelectronics - 3D model - Small Outline Packages - SO-8-2020-8
click to zoom

UC2845BD1 Details

  • Manufacturer Part Number:

    UC2845BD1

  • 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:

    8.2 V

  • Input Voltage-Nom:

    15 V

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -25 °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):

    260

  • 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 EXTENDED

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.9 mm

UC2845BD1 Frequently Asked Questions (FAQs)

  • The UC2845BD1 is a high-frequency device, and proper layout and placement are crucial to minimize EMI. It is recommended to keep the input and output stages separate, use a ground plane, and keep the feedback loop as short as possible. Additionally, use a shielded transformer and keep the transformer and the IC as close as possible.
  • When choosing a transformer for the UC2845BD1, consider the output power, input voltage, and frequency. The transformer should be designed to handle the maximum output power and have a turns ratio that matches the input and output voltages. The transformer's leakage inductance and magnetizing inductance should also be considered to ensure proper operation.
  • The maximum duty cycle for the UC2845BD1 is typically around 50%, but it can vary depending on the specific application and design. Exceeding the maximum duty cycle can cause the output voltage to droop or become unstable. It is essential to ensure that the duty cycle is within the recommended range to maintain a stable output voltage.
  • The UC2845BD1's voltage feedback loop requires compensation to ensure stability. A type II compensator is typically used, which consists of a resistor, capacitor, and another resistor in series. The values of these components depend on the specific application and design, but a good starting point is to use the values recommended in the datasheet or application notes.
  • The UC2845BD1 has a maximum junction temperature of 150°C. To ensure reliable operation, it is essential to provide adequate heat sinking, such as a heat sink or thermal pad, and to keep the device away from other heat sources. Additionally, ensure that the device is operated within the recommended temperature range and that the thermal design is adequate for the specific application.

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

UC2845BD1 Overview

Use the download button to access the UC2845BD1 schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like UC284, 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

Suggested Parts

If you searched for UC2845BD1, you might also be interested in these parts:
Part Number
TLP350(TP5,F)
MURA220T3G
SRP1265C-150M
SISS10DN-T1-GE3
MIC2196YM
A765MU227M1ELAE050
PDS1040L-13
SIS892ADN-T1-GE3
PE2512FKE7W0R1L

Parts related to UC2845BD1

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 ↑

UC2845BD1 Alternates

Showing results

Image Part Number Model
Part Image UC2845BD1013TR STMicroelectronics

Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8
Part Image UC2845AD1013TR STMicroelectronics

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