KA3501

Effective Inventory3,276

SPECIALTY ANALOG CIRCUIT, PDIP14, DIP-14

  • Manufacturer Part # : KA3501

  • Package/Case: TO-220

  • Brand: Onsemi

  • Product Categories : Power Supply Controllers, Monitors

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We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.

Shipping & Payment

Shipping & Payment

About Shipping

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Service & Packaging

Service & Packaging

About After Sales Service

All Parts Extended Quality Guarantee

Initiate the application within 90 days from the shipment date.

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KA3501 DataSheet

Pricing (USD)

Quantity Unit Price Ext. Price
1 $0.221 $0.22
200 $0.085 $17.00
500 $0.082 $41.00
1000 $0.081 $81.00

These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.

Rapid Quote

Please submit RFQ for KA3501 or email to us: Email: [email protected], we will contact you in 12 hours.

Details

The KA3501 is complete housekeeping circuits for use in the secondary side of SMPS(Switched Mode Power Supply). This IC(Integrated Circuit) contains a precision voltage reference, protection circuits and a power good signal generator. It also has a high current drive output for use in conjunction with an external "crowbar" SCR. The reference voltage is trimmed to ±2% for correct output voltages(+5V/+12V) and power good signal generator is to monitor the voltage level of power good supply for safe operation in a microprocessor circuit. Using the KA3501 requires few external components to accomplish a complete housekeeping circuit for SMPS(Switched Mode Power Supply). The KA3501 is available in an 14-pin DIP.Features• Complete House Keeping Circuit• Few External Components• Positive Voltage Protection• Negative Voltage Protection• High Current Drive Output for SCR• Precision Voltage Reference for 5V/12V Outputs• Power Good Signal Generator with Hysteresis

Key Features

  • Complete House Keeping Circuit
  • Few External Components
  • Positive Voltage Protection
  • Negative Voltage Protection
  • High Current Drive Output for SCR
  • Precision Voltage Reference for 5V/12V Outputs
  • Power Good Signal Generator with Hysteresis

Specifications

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

Pbfree Code Yes Part Life Cycle Code Active
Part Package Code DIP Pin Count ! 14
Reach Compliance Code Additional Feature ! ALSO REQUIRES AN ADDITIONAL SUPPLY OF 5V
Analog IC - Other Type ANALOG CIRCUIT JESD-30 Code R-PDIP-T14
JESD-609 Code e3 Length 19.4 mm
Moisture Sensitivity Level NOT APPLICABLE Number of Functions 1
Number of Terminals 14 Operating Temperature-Max 70 °C
Operating Temperature-Min Package Body Material PLASTIC/EPOXY
Package Code DIP Package Shape RECTANGULAR
Package Style IN-LINE Peak Reflow Temperature (Cel) NOT APPLICABLE
Qualification Status ! COMMERCIAL Seated Height-Max 5.08 mm
Supply Voltage-Max (Vsup) 32 V Supply Voltage-Min (Vsup) 5 V
Supply Voltage-Nom (Vsup) 20 V Surface Mount ! NO
Temperature Grade ! COMMERCIAL Terminal Finish MATTE TIN
Terminal Form ! THROUGH-HOLE Terminal Pitch ! 2.54 mm
Terminal Position DUAL Time@Peak Reflow Temperature-Max (s) NOT APPLICABLE
Width 7.62 mm

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification KA3501 PDF Download

FAQs

What is KA3501?

The KA3501 is a pulse width modulation (PWM) controller IC designed for controlling power supplies and voltage regulators. It is commonly used in switch-mode power supply applications to regulate and control the output voltage efficiently.

How Does KA3501 Work?

The KA3501 works by producing a pulse-width modulated signal that controls the switching of power devices like MOSFETs in a power supply circuit. By adjusting the width of the pulses, the duty cycle is changed, regulating the output voltage. It allows for efficient energy transfer and voltage regulation in power supply designs.

How Many Pins does KA3501 have and What are the Functions of the Pinout Configuration?

The KA3501 is typically available in an 8-pin DIP (Dual Inline Package) or SOP (Small Outline Package). The pinout configuration includes:

  • VCC: Power supply pin.
  • GND: Ground pin.
  • COMP: Error amplifier output pin.
  • RT/CT: Oscillator timing components pin.
  • OSC OUT: Oscillator output pin.
  • FB: Feedback pin for voltage regulation.
  • OUT: Switching output pin for power devices.
  • SD: Shutdown pin for enabling or disabling the device.

What are the Pros and Cons of KA3501?

Pros:

  • Efficient Power Regulation: Enables efficient power supply voltage control through PWM.
  • Compact Design: Comes in a small package suitable for space-constrained applications.
  • Wide Operating Voltage Range: Works with a wide range of input voltages for versatility.
  • Simple Implementation: Easy to integrate into power supply designs for various applications.

Cons:

  • No Internal Voltage Reference: Requires external components for precise voltage regulation.
  • External Components Needed: May need additional components for specific power supply designs.
  • Limited Protection Features: Some protection features may need to be implemented externally.

Are There Any Equivalents/Alternatives to KA3501 for Recommendation?

  • Similar PWM controllers to the KA3501 include the SG3525 from STMicroelectronics and the TL494 from Texas Instruments.
  • Alternatives to the KA3501 are the UC3842 from Texas Instruments and the LM5039 from Texas Instruments.

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