Name: KA3843B
Brand: Rochester Electronics
SKU: DS-6094130
Price: 0.2633 USD
Availability: InStock
Rating: 4.8 (3 reviews)

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Rochester Electronics KA3843B

IC OFFLINE SWITCH 8DIP

Manufacturer # :KA3843B

Manufacturer :Rochester Electronics

Dasenic # :KA3843B-DS

Datasheet :

KA3843B Datasheet

Customer # :

Customer #

Description : IC OFFLINE SWITCH 8DIP

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Quantity	Unit Price	Total
1+	$ 0.2633	$ 0.26
25+	$ 0.2579	$ 6.45
100+	$ 0.2474	$ 24.74
500+	$ 0.2369	$ 118.45
1000+	$ 0.2237	$ 223.7

In Stock: 41690

MOQ :1 PCS

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Delivery Time :Ship Within 48 Hours

Shipping Origin :Shenzhen or Hong Kong Warehouse

Quantity :

Unit Price :$ 0.2633

Total :$ 0.26

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KA3843B information

Rochester Electronics KA3843B technical specifications, attributes, parameters.
Category:Integrated Circuits (ICs)/PMIC - AC DC Converters, Offline Switchers
Product Status:Active
Operating Temperature:0°C ~ 70°C (TA)
Mounting Type:Through Hole
Package / Case:8-DIP (0.300", 7.62mm)
Supplier Device Package:8-DIP
Voltage - Breakdown:-
Power ( Watts):-
Internal Switch(s):No
Voltage - Supply ( Vcc/ Vdd):12V ~ 25V
Frequency - Switching:Up to 500kHz
Output Isolation:-
Topology:-
Voltage - Start Up:8.4 V
Duty Cycle:97%
Fault Protection:-
Control Features:Frequency Control
EU RoHS Status:ROHS3 Compliant
MSL Rating:3 (168 Hours,30°C/60%RH)
REACH Status:REACH Unaffected
US ECCN:EAR99
HTS US:8542.39.0001
China RoHS Status:Green Symbol: Green and environmentally friendly product

Download datasheets and manufacturer documentation for Rochester Electronics KA3843B
Datasheet:
KA3843B,

Rochester Electronics KA3843B Environmental and export classification status description
The Fairchild Semiconductor KA3843B is a pulse-width modulation (PWM) controller IC commonly used in power supply applications. It is primarily designed to regulate the output voltage of switch mode power supplies by controlling the pulse width of the power switches. Functions: 1. Provides stable power supply regulation through PWM control. 2. Generates precise pulse width modulation signals. 3. Supports adjustable duty cycle for efficient power conversion. 4. Offers overvoltage protection and feedback compensation features. Applications: 1. Switched-mode power supplies (SMPS) 2. AC-DC power adapters 3. Voltage regulators 4. Battery chargers 5. LED drivers Alternative Components: 1. TL494 - PWM controller IC 2. UC3843 - Current-mode PWM controller 3. SG3525 - Regulating pulse width modulation controller Embedded Modules: The Fairchild Semiconductor KA3843B does not have specific embedded modules, as it is a standalone IC used in power supply circuits. --- Q&A 1. What is PWM control in power supplies, and how does the KA3843B enable it? PWM control involves modulating the width of pulses to control the power flow in a circuit. The KA3843B generates PWM signals based on feedback to precisely regulate the output voltage in power supplies. 2. Can the KA3843B be used in both AC and DC power supply designs? Yes, the KA3843B is suitable for both AC-DC and DC-DC power supply applications, ensuring stable and efficient power regulation. 3. How does overvoltage protection work in the KA3843B? The KA3843B monitors the output voltage and triggers protection mechanisms if the voltage exceeds a certain threshold, ensuring the connected components are not damaged due to overvoltage conditions. 4. Are there any specific design considerations when using the KA3843B in battery charger circuits? When designing battery chargers with the KA3843B, attention should be given to the charging profile, current limits, and thermal management to ensure safe and efficient charging of batteries. 5. What advantages does the KA3843B offer compared to other PWM controller ICs for power supply designs? The KA3843B is known for its simplicity in design, ease of use, and robust performance, making it a popular choice for various power supply applications. It also offers flexibility in duty cycle adjustment and protection features for enhanced reliability.

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KA3843B provided by Rochester Electronics

As an original manufacturer stocking distributor, Rochester Electronics has over 15 billion devices in stock encompassing more than 200,000-part numbers, providing the world’s most extensive range of end-of-life (EOL) semiconductors and broadest range of active semiconductors. As a licensed semiconductor manufacturer, Rochester has manufactured over 20,000 device types. With over 12 billion die in stock, Rochester has the capability to manufacture over 70,000 device types. Rochester oﬀers a full range of manufacturing services including Design, Wafer Processing, Assembly, Test, Reliability, and IP Archiving providing single solutions through to full turnkey manufacturing, enabling faster time-to-market.