KA3844B

Name: KA3844B
Brand: Onsemi
Availability: InStock
Rating: 4.5 (10 reviews)
Author: Lisleapex

PDIP8, 1A, Current-mode, Switching Controller, 500kHz Switching Freq-Max

7,690 Effective Inventory

KA3844B

Effective Inventory7,690

PDIP8, 1A, Current-mode, Switching Controller, 500kHz Switching Freq-Max

Manufacturer Part # : KA3844B
Package/Case: DIP-8
Part Status : Active
Brand: Onsemi
Product Categories : AC DC Converters, Offline Switches

Quality Assurance

All parts procured from our supply chain network undergo a rigorous incoming inspection process. This meticulous inspection ensures that the parts received by our customers are authentic and meet the required standards. Additionally, we maintain detailed records of these inspections to ensure transparency and traceability throughout the supply chain.

Certification

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

About Shipping

We generally ship orders within a few business days through reliable shipping carriers such as FedEx, SF, UPS, or DHL. We also have support for other shipping methods. If you would like to inquire about specific shipping details or costs, please don't hesitate to reach out to us.

About Payment

We accept various payment methods, including VISA, MasterCard, UnionPay, Western Union, PayPal, and other channels.

If you have a specific payment method in mind or would like to inquire about rates and other details, please feel free to contact us.

WireTransfer

Paypal

CreditCard

WesternUnion

MoneyGram

Service & Packaging

About After Sales Service

All Parts Extended Quality Guarantee

Initiate the application within 90 days from the shipment date.

Confirm the return or exchange with our staff.

Maintain the goods in their original condition as received.

Lastly, please note that the eligibility for return or exchange of goods is subject to an assessment of the actual condition of the returned items. We will evaluate the received goods before finalizing the return or exchange process. If you have any inquiries or require further assistance regarding returns or exchanges, please don't hesitate to contact us at [email protected]

About packaging

Regarding packaging, our products are carefully packed in anti-static bags to provide ESD anti-static protection. The outer packaging is durable with secure closure. We support various packaging methods such as Tape and Reel, Cut Tape, Tube, or Tray.

Example

Tape and Reel

Cut Tape

Tube or Tray

KA3844B DataSheet

Pricing (USD)

Quantity	Unit Price	Ext. Price
1	$0.746	$0.75
200	$0.290	$58.00
500	$0.279	$139.50
1000	$0.275	$275.00

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

Interested Parts

LM385Z-2.5
Onsemi
Min$0.065

Price Dtls.
LB11696V-TLM-E
Onsemi
Min$0.805

Price Dtls.
LM317MDTX
Onsemi
Min$0.303

Price Dtls.
MC79M12BDTG
Onsemi
Min$0.504

Price Dtls.
FAN7842MX
Onsemi
Min$0.450

Price Dtls.
NCP5106BDR2G
Onsemi
Min$0.305

Price Dtls.
MC33039DR2G
Onsemi
Min$0.548

Price Dtls.
FSFR2100XSL
Onsemi
Min$1.488

Price Dtls.

Rapid Quote

Please submit RFQ for KA3844B or email to us: Email: [email protected], we will contact you in 12 hours.

Quantity^*

Contact Person^*

E-mail^*

Company Name

Anything else?

KA3844B Details

Relevant industries will benefit from the technical advantages offered by the KA3844B, such as its high level of output current, wide input voltage range, and protective features. Its compatibility with various applications, combined with its ease of integration, positions it as a valuable component for enhancing the functionality and efficiency of DC-DC converters and switching regulators. The KA3844B represents a reliable and versatile solution for achieving precise voltage and current control in electronic circuits

Key Features

High-Speed Operation up to 100kHz
Safe Operating Area Diagram
Regulated Voltage Output: 5V ±5%
Soft-Start Function for In-Rush Current Limiting
Over-Temperature Shut-Down with Hysteresis
Precision Voltage Reference: 2.5V ±1%

Application

Power Supplies
Lighting Systems
DC Converters

Specifications

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

Manufacturer	onsemi	Product Category !	AC DC Converters, Offline Switchers
Series	-	Packaging !	Tube
Unit-Weight	8-DIP (0.300", 7.62mm)	Mounting-Style	8-DIP
Package-Case	-	Operating-Temperature	1 Output
Mounting-Type	-	Supplier-Device-Package	-
Watt	16V	Number-of-Outputs	Up to 500kHz
Output-Isolation	-	Internal-Switch-s	Frequency Control
Voltage-Breakdown	17 mA	Topology	35 ns
Voltage-Start-Up	45 ns

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 KA3844B PDF Download

FAQs

What is KA3844B?

The KA3844B is a pulse width modulation (PWM) control circuit designed for high-performance switching power supplies and other applications that require high frequency pulse width modulation.

How Does KA3844B Work?

The KA3844B operates by providing control for the turn-on and turn-off times of the power switch in a PWM circuit. It regulates the duty cycle of the output waveform, which is used to control the power delivered to the load. This allows for efficient power conversion and regulation.

How Many Pins does KA3844B have and What are the Functions of the Pinout Configuration?

The KA3844B is available in a 16-pin dual in-line package (DIP). The pinout configuration includes:

VI: Voltage input pin.
GND: Ground pin.
COMP: Error amplifier output pin.
Ramp: Ramp input pin for the on-time control.
CT: Timing capacitor pin for frequency control.
RT: Timing resistor pin for frequency control.
OUT: Output pin.
SD: Shutdown pin.

What are the Pros and Cons of KA3844B?

Pros:

High-Performance: Suitable for high-frequency switching power supply applications.
Efficient Power Conversion: Enables efficient regulation of power delivered to the load.
Wide Voltage Range: Supports a wide input voltage range for versatility.

Cons:

External Components: May require additional external components for certain applications.
Complexity: Requires careful design considerations for noise, stability, and output regulation.

Are There Any Equivalents/Alternatives to KA3844B for Recommendation?

Equivalents to the KA3844B include the SG3524 from STMicroelectronics and the UC3844 from Texas Instruments. Alternatives with similar functions include the TL494 from Texas Instruments and the IRS2153D from Infineon Technologies.