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Power Factor Controller, Current-mode, 1.5A, 300kHz Switching Freq-Max, BIPolar, PDIP16


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  • Part Number : LT1248IN

  • Package/Case : PDIP-16

  • Brands : ADI

  • Components Categories : PFC (Power Factor Correction)

  • Datesheet : LT1248IN DataSheet (PDF)

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Please submit RFQ for LT1248IN or email to us: Email: [email protected], we will contact you in 12 hours.

Overview of LT1248IN

The LT1248IN is a high-performance Power Factor Correction (PFC) integrated circuit designed to improve power efficiency and meet power quality standards in electronic systems. It actively adjusts the input current waveforms, ensuring a high power factor and making it suitable for various applications.


Detailed Pin Description:

  • Pin 1 (VIN): Input Voltage.
  • Pin 2 (RTN): Ground Reference.
  • Pin 3 (IAC): AC Current Sense Input.
  • Pin 4 (VAC): AC Voltage Sense Input.
  • Pin 5 (VCC): Power Supply Voltage.
  • Pin 6 (COMP): Compensation Pin for Feedback Loop.
  • Pin 7 (FB): Feedback Pin.
  • Pin 8 (OUT): PFC Output.

Note: The pin configuration above is a general representation. Refer to the specific datasheet for precise details.Circuit Diagram

[Include a simple circuit diagram showcasing the LT1248IN in a typical Power Factor Correction application.]

Key Features

  • Active Power Factor Correction: Improves power factor for enhanced efficiency.
  • Wide Input Voltage Range: Suitable for a variety of input voltage levels.
  • Internal Compensation: Simplifies external circuitry for ease of design.
  • Overvoltage Protection: Ensures robust performance under varying conditions.

Note: Comprehensive technical details can be available in the LT1248IN datasheet.


  • Switched Mode Power Supplies (SMPS): Used in power supplies to improve power factor.
  • LED Drivers: Enhances power efficiency in LED lighting applications.
  • Motor Drives: Ensures efficient power transfer in motor control circuits.


The LT1248IN actively corrects the power factor by adjusting the input current waveform to be in phase with the input voltage, resulting in improved overall power efficiency.


LT1248CS8: Surface-mount version with similar specifications.
L6562: Alternative PFC controller suitable for similar applications.

Usage Guide

  • Refer to the official datasheet for comprehensive technical details.
  • Implement the recommended external components for optimal performance.

Frequently Asked Questions

Q: What is the recommended input voltage for the LT1248IN?
A: Refer to the datasheet for information on the recommended input voltage range.

Q: Is external compensation required for this PFC controller?
A: The LT1248IN features internal compensation, but refer to the datasheet for specific details.


The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Source Content uid LT1248IN Rohs Code No
Part Life Cycle Code Obsolete Ihs Manufacturer ANALOG DEVICES INC
Package Description DIP, Reach Compliance Code not_compliant
ECCN Code EAR99 HTS Code 8542.39.00.01
Samacsys Manufacturer Analog Devices Analog IC - Other Type POWER FACTOR CONTROLLER
Input Voltage-Max 25 V Input Voltage-Min 11.5 V
Input Voltage-Nom 18 V JESD-30 Code R-PDIP-T16
JESD-609 Code e0 Moisture Sensitivity Level 1
Number of Functions 1 Number of Terminals 16
Operating Temperature-Max 125 °C Operating Temperature-Min -40 °C
Output Current-Max 1.5 A Output Voltage-Nom 7.5 V
Package Body Material PLASTIC/EPOXY Package Code DIP
Package Shape RECTANGULAR Package Style IN-LINE
Qualification Status Not Qualified Seated Height-Max 3.937 mm
Supply Current-Max (Isup) 12 mA Surface Mount NO
Switcher Configuration BOOST Switching Frequency-Max 300 kHz
Technology BIPOLAR Temperature Grade AUTOMOTIVE
Terminal Finish Tin/Lead (Sn/Pb) Terminal Form THROUGH-HOLE
Terminal Pitch 2.54 mm Terminal Position DUAL
Width 7.62 mm

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