UC3843AN Switching Controllers by SLKORMICRO – High-Speed PWM Power Control
The Switching Controllers UC3843AN by SLKORMICRO are current-mode PWM control ICs tailored for efficient power conversion. Built for high-speed performance, low start-up current, and precision voltage regulation, this component is a trusted choice for modern switch-mode power supply (SMPS) and DC-DC converter applications.
This blog explores the technical specs, use cases, and integration benefits of the UC3843AN, along with a look at other available options from Texas Instruments.
Technical Specifications of UC3843AN
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Manufacturer: SLKORMICRO
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Part Number: UC3843AN
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Function: Current-Mode PWM Switching Controller
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Input Voltage Range: 7.6V – 30V
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Start-Up Current: <1 mA
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Operating Frequency: Up to 500kHz
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Output Type: Totem-pole
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Package Type: DIP-8
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Category: Semiconductors, Integrated Circuits - ICs, Power Management ICs, Voltage Regulators & Voltage Controllers, Switching Controllers
This IC is optimized for energy-efficient power supplies across a wide range of applications.
Key Features of UC3843AN Switching Controllers
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Current-Mode PWM Control with Fast Loop Response
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Trimmed Internal Reference (5V ±1%)
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Undervoltage Lockout (UVLO) with hysteresis
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Totem-Pole Output Drive for MOSFETs
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Low Start-Up and Operating Power Consumption
These features make the UC3843AN Switching Controllers ideal for designs requiring tight voltage regulation and rapid transient response.
Applications of UC3843AN
This IC integrates seamlessly into systems requiring robust voltage regulators & voltage controllers, and is commonly used in power management ICs.
Wiring and Connection Overview
Pin Configuration (DIP-8):
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Pin 1: Compensation
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Pin 2: Voltage Feedback
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Pin 3: Current Sense
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Pin 4: Timing (RT/CT)
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Pin 5: GND
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Pin 6: Output
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Pin 7: VCC
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Pin 8: Reference (VREF)
Its minimal external component requirement and high reliability make it a preferred option for efficient switching controller design.
Use Case Scenario: Optimizing Power in Embedded Controllers
Challenge: An embedded systems designer needed a compact and stable voltage regulation IC for their control units in industrial robotics.
Solution: The UC3843AN enabled accurate voltage control, improved energy efficiency, and reduced component footprint.
Result: Enhanced overall reliability and regulatory compliance using just one power management IC.
Also Available from Other Manufacturers
If you're looking for alternatives to the UC3843AN:
Compare options at Xon Electronics to find the perfect fit.
Download Datasheet for UC3843AN
Need detailed specs or thermal data?
[Download the UC3843AN Datasheet from Xon Electronics]
Why Buy from Xon Electronics?
Order your UC3843AN Switching Controllers from Xon Electronics and enjoy:
- 100% Genuine SLKORMICRO Components
- Fast Global Shipping – USA, India, Australia, Europe & more
- OEM/Bulk Order Discounts
- Instant Datasheet Access
- Secure, Trusted Checkout
Your go-to supplier for all things Semiconductors, Voltage Controllers, and Power Management ICs.
FAQs – UC3843AN Switching Controllers
Q1. What makes UC3843AN ideal for SMPS?
It features current-mode control with quick feedback response and high switching speed.
Q2. Can it support high-frequency switching?
Yes, up to 500kHz depending on external timing components.
Q3. What package is it available in?
DIP-8 for through-hole mounting.
Q4. Is it suitable for battery chargers?
Absolutely — it provides reliable voltage control in charging systems.
Q5. Does Xon Electronics ship globally?
Yes, including USA, India, Australia, Europe, and more.
Conclusion
The UC3843AN Switching Controllers by SLKORMICRO are high-speed, low-power PWM control ICs, perfect for engineers building efficient and compact power solutions. Widely used in SMPS, battery chargers, and DC-DC converters, it offers the perfect blend of performance and affordability.
Now available at Xon Electronics with worldwide shipping to USA, India, Australia, Europe, and beyond.