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KA3844B Current-Mode PWM Controller IC DIP-8

KA3844B Current-Mode PWM Controller IC DIP-8

Part number: KA3844BBrand: FairchildIntegrated Circuits (ICs)

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25 EGP

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Prices updated: 12 Oct 2026

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About this product

KA3844B is a fixed-frequency current-mode PWM controller IC from Fairchild, designed for off-line and DC-to-DC switch-mode power supplies with minimal external components. It includes a trimmed oscillator, temperature-compensated reference, error amplifier, current-sense comparator and a totem-pole output for driving a power MOSFET. It comes in an 8-pin DIP package.

Specifications

Type
Current-mode PWM controller
Package
DIP-8
UVLO thresholds
16 V on / 10 V off
Maximum operating frequency
500 kHz
Output
Totem-pole driver for power MOSFET
Start-up current
Low

Frequently asked questions

What is the price of KA3844B Current-Mode PWM Controller IC DIP-8 in Egypt?

KA3844B Current-Mode PWM Controller IC DIP-8 currently costs 25 EGP in Egypt.

Where can I buy KA3844B Current-Mode PWM Controller IC DIP-8 in Egypt?

KA3844B Current-Mode PWM Controller IC DIP-8 is available from Makers Electronics. Compare the offers above to find the best price.

Can the KA3844B drive a power MOSFET directly?

Yes. Its totem-pole output is designed to drive the gate of a power MOSFET. Choose the gate resistor and any snubber network according to your design and the datasheet.

What is the difference between KA3844B and KA3845B?

The two variants differ in their UVLO thresholds and maximum duty cycle. The KA3845B is the variant that is limited to a 50% duty cycle. Check the datasheet for the exact values before choosing one.