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Power Circuits / Switching Regulator or Controllers / UC3845AM
Datasheets
UC3845AM by:
Microsemi Corporation
Linfinity Microelectronics
Microchip Technology Inc
Microsemi Corporation
Texas Instruments
Not Found

Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDIP8, ROHS COMPLIANT, PLASTIC, DIP-8

Part Details for UC3845AM by Microsemi Corporation

Results Overview of UC3845AM by Microsemi Corporation

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

Applications Consumer Electronics Energy and Power Systems Renewable Energy

UC3845AM Information

UC3845AM by Microsemi Corporation is a Switching Regulator or Controller.
Switching Regulator or Controllers are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Price & Stock for UC3845AM

Part # Distributor Description Stock Price Buy
Quest Components   292
  • 1 $3.1500
  • 33 $2.1000
  • 120 $1.9425
$1.9425 / $3.1500 Buy Now

Part Details for UC3845AM

UC3845AM CAD Models

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UC3845AM Part Data Attributes

Parametric Data
UC3845AM Microsemi Corporation
Buy Now Datasheet
Compare Parts:
UC3845AM Microsemi Corporation Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDIP8, ROHS COMPLIANT, PLASTIC, DIP-8
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Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Transferred
Ihs Manufacturer MICROSEMI CORP
Part Package Code DIP
Package Description ROHS COMPLIANT, PLASTIC, DIP-8
Pin Count 8
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Samacsys Manufacturer Microsemi Corporation
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-PDIP-T8
JESD-609 Code e3
Moisture Sensitivity Level 1
Number of Functions 1
Number of Terminals 8
Operating Temperature-Max 70 °C
Operating Temperature-Min
Output Current-Max 1 A
Package Body Material PLASTIC/EPOXY
Package Code DIP
Package Equivalence Code DIP8,.3
Package Shape RECTANGULAR
Package Style IN-LINE
Qualification Status Not Qualified
Seated Height-Max 5.08 mm
Surface Mount NO
Switcher Configuration SINGLE
Switching Frequency-Max 500 kHz
Technology BIPOLAR
Temperature Grade COMMERCIAL
Terminal Finish MATTE TIN
Terminal Form THROUGH-HOLE
Terminal Pitch 2.54 mm
Terminal Position DUAL
Width 7.62 mm

Alternate Parts for UC3845AM

This table gives cross-reference parts and alternative options found for UC3845AM. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of UC3845AM, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
5962-8670402PC TT Electronics Resistors Check for Price Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CDIP8 UC3845AM vs 5962-8670402PC
UC3843ADR2 onsemi Check for Price 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDSO14, PLASTIC, SOIC-14 UC3845AM vs UC3843ADR2
5962-8670401XA Unitrode Corp (RETIRED) Check for Price Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CQCC20, UC3845AM vs 5962-8670401XA
LT1241MJ8 Linear Technology Check for Price IC 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, CDIP8, 0.300 INCH, HERMETIC SEALED, CERDIP-8, Switching Regulator or Controller UC3845AM vs LT1241MJ8
UC3843A-S08-R Unisonic Technologies Co Ltd Check for Price Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, PDSO8, SOP-8 UC3845AM vs UC3843A-S08-R
SG1845J/883 Microchip Technology Inc Check for Price Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CDIP14 UC3845AM vs SG1845J/883
5962-8670407PA Defense Logistics Agency Check for Price Switching Controller, Current-mode, 1A, CDIP8, CERAMIC, DIP-8 UC3845AM vs 5962-8670407PA
IP2845AD-14 TT Electronics Power and Hybrid / Semelab Limited Check for Price 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDSO14, 0.150 INCH, PLASTIC, SOIC-14 UC3845AM vs IP2845AD-14
5962-8670404PX Unitrode Corporation Check for Price Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CDIP8, UC3845AM vs 5962-8670404PX
CS3844GD14 onsemi Check for Price 1A SWITCHING CONTROLLER, PDSO14, SO-14 UC3845AM vs CS3844GD14

UC3845AM Related Parts

UC3845AM Frequently Asked Questions (FAQ)

  • The recommended operating voltage range for UC3845AM is 12V to 28V, with a typical value of 15V. However, it can operate up to 30V with some performance degradation.

  • The values of RT and CT depend on the desired switching frequency. A higher switching frequency requires a smaller CT and a larger RT. A good starting point is to use RT = 10kΩ and CT = 3.3nF for a 50kHz switching frequency. Adjust these values based on your specific application requirements.

  • The UC3845AM can drive up to 1.5A of output current, making it suitable for most switching power supply applications. However, the actual output current capability may be limited by the external components and the PCB layout.

  • To ensure stable and reliable operation, make sure to decouple the VCC pin with a 10uF capacitor, use a low-ESR output capacitor, and provide a good thermal path for the IC. Additionally, follow proper PCB layout guidelines and use a shielded transformer to minimize electromagnetic interference (EMI).

  • While the UC3845AM is primarily designed for switching frequencies up to 100kHz, it can be used in high-frequency applications up to 500kHz with some performance degradation. However, it's essential to carefully evaluate the IC's performance and ensure that it meets your specific application requirements.