Name: UC3843DX
Brand: Onsemi
SKU: DS-6282733
Price: 0.7565 USD
Availability: InStock
Rating: 4.8 (3 reviews)

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Onsemi UC3843DX

IC REG CTRLR 14SOIC

Manufacturer # :UC3843DX

Manufacturer :Onsemi

Dasenic # :UC3843DX-DS

Datasheet :

UC3843DX Datasheet

Customer # :

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Description : IC REG CTRLR 14SOIC

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Quantity	Unit Price	Total
1+	$ 0.7565	$ 0.76
10+	$ 0.7136	$ 7.14
100+	$ 0.6732	$ 67.32
1000+	$ 0.5991	$ 599.1
10000+	$ 0.5652	$ 5652

In Stock: 51670

MOQ :1 PCS

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Delivery Time :Ship Within 48 Hours

Shipping Origin :Shenzhen or Hong Kong Warehouse

Quantity :

Unit Price :$ 0.7565

Total :$ 0.76

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UC3843DX information

Onsemi UC3843DX technical specifications, attributes, parameters.
Category:Integrated Circuits (ICs)/PMIC - Voltage Regulators - DC DC Switching Controllers
Product Status:Obsolete
Operating Temperature:0°C ~ 70°C (TA)
Mounting Type:Surface Mount
Package / Case:14-SOIC (0.209", 5.30mm Width)
Output Type:Transistor Driver
Supplier Device Package:14-SOP
Voltage - Supply ( Vcc/ Vdd):7.6V ~ 30V
Frequency - Switching:Up to 500kHz
Number of Outputs:1
Topology:Boost, Flyback
Control Features:Frequency Control
Output Configuration:Positive, Isolation Capable
Output Phases:1
Duty Cycle ( Max):97%
Synchronous Rectifier:No
Clock Sync:No
Serial Interfaces:-
Function:Step-Up, Step-Up/Step-Down
MSL Rating:1 (Unlimited, 30°C/85%RH)
REACH Status:REACH Unaffected
US ECCN:EAR99
HTS US:8542.39.0001
EU RoHS Status:RoHS Compliant
China RoHS Status:Orange Symbol: Safe for use during the environmental protection period

Download datasheets and manufacturer documentation for Onsemi UC3843DX
Datasheet:
UC3843DX,

Onsemi UC3843DX Environmental and export classification status description
The Onsemi UC3843DX is a high-performance current-mode PWM controller designed for DC-to-DC power supply applications. It provides all the necessary functions to implement off-line or DC-to-DC fixed-frequency current-mode control schemes. This IC is commonly used in power supplies, battery chargers, and LED driver applications. Functions: 1. Current-mode PWM control for superior transient response. 2. Automatic feed-forward compensation. 3. Pulse-by-pulse current limiting. 4. Under-voltage lockout with hysteresis. 5. Soft start. 6. Precision reference. Applications: 1. Switched-mode power supplies. 2. AC-to-DC converters. 3. Battery chargers. 4. LED drivers. 5. Power adapters. Alternative Components: 1. Texas Instruments UC3843B 2. STMicroelectronics UC3843A 3. Fairchild Semiconductor KA3843B 4. Linear Technology LTC6993 5. Infineon ICE2QS03 Embedded Modules: 1. Current sensing circuitry. 2. Voltage feedback loop. 3. Error amplifier. Related Q&A: 1. Q: What are the advantages of using UC3843DX in power supply applications? A: UC3843DX provides current-mode control for better dynamic response, automatic feed-forward compensation, and protections like pulse-by-pulse current limiting. 2. Q: How does UC3843DX help in increasing power supply efficiency? A: By providing precise current control and soft start function, UC3843DX helps in optimizing power supply efficiency and reducing startup stresses. 3. Q: Can UC3843DX be used in both off-line and DC-to-DC power supply designs? A: Yes, UC3843DX is versatile enough to be used in off-line as well as DC-to-DC power supply implementations. 4. Q: Are there any design considerations when using UC3843DX in LED driver applications? A: When designing LED drivers using UC3843DX, consider the current limiting capabilities, dimming control methods, and thermal management for efficient LED operation. 5. Q: How does the soft-start feature of UC3843DX benefit power supply designs? A: The soft-start feature of UC3843DX helps in reducing inrush currents and stresses during power-up, thereby enhancing the reliability and longevity of the power supply system.

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Delivering Time
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UC3843DX provided by Onsemi

Founded in 1999,ON Semiconductor (Nasdaq: ON) focus on automotive and industrial end-markets, the company is accelerating change in megatrends such as vehicle electrification and safety, sustainable energy grids, industrial automation, and 5G and cloud infrastructure. Onsemi offers a diverse portfolio of semiconductor products, including Discrete & Power Modules,Power Management, Signal Conditioning & Control, Sensors, Motor Control, Custom & ASSP, Interfaces, Wireless Connectivity, Timing, Logic & Memory. With a highly differentiated and innovative product portfolio, onsemi creates intelligent power and sensing technologies that solve the world’s most complex challenges and leads the way in creating a safer, cleaner, and smarter world. Headquartered in Arizona, USA, the company has a robust infrastructure that includes an extensive network of 19 manufacturing sites, 43 design centers, and 8 solution engineering centers.