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UC3843BN
UC3843BN, 500KHz, MINIDIP
Brands: Stmicroelectronics
Mfr.Part #: UC3843BN
Datasheet: UC3843BN Datasheet (PDF)
Package/Case: DIP-8
RoHS Status:
Stock Condition: 9458 pcs, New Original
Product Type: Switching Controllers
Warranty: 1 Year Ovaga Warranty - Find Out More
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*All prices are in USD
| Qty | Unit Price | Ext Price |
|---|---|---|
| 1 | $0.318 | $0.318 |
| 10 | $0.260 | $2.600 |
| 50 | $0.234 | $11.700 |
| 100 | $0.203 | $20.300 |
| 500 | $0.170 | $85.000 |
| 1000 | $0.162 | $162.000 |
In Stock:9458 PCS
UC3843BN General Description
The UC3843BN is a high performance current mode PWM controller. It is specifically designed for use in switching power supplies and motor control applications. The device features an output that can source or sink up to 500mA of current, allowing it to drive a wide range of power devices. Additionally, the UC3843BN includes a voltage reference, error amplifier, oscillator, and output stage to provide comprehensive control over the switching operation.The controller operates with a supply voltage range of 9V to 20V and has a maximum operating frequency of 500kHz. It also includes features such as overcurrent protection, undervoltage lockout, and soft start to ensure safe and reliable operation. The UC3843BN is available in an 8-pin DIP package, making it easy to integrate into a variety of designs.
Features
Application
Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| ECCN US | EAR99 | ECCN EU | NEC |
| Packing Type | Tube | RoHs compliant | Ecopack2 |
| Grade | Industrial |
Shipping
| Shipping Type | Ship Fee | Lead Time | |
|---|---|---|---|
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DHL | $20.00-$40.00 (0.50 KG) | 2-5 days |
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Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days |
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UPS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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TNT | $20.00-$40.00 (0.50 KG) | 2-5 days |
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EMS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time：Shipping fee depend on different zone and country.
Payment
| Terms of payment | Hand Fee | |
|---|---|---|
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Wire Transfer | charge US$30.00 banking fee. |
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Paypal | charge 4.0% service fee. |
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Credit Card | charge 3.5% service fee. |
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Western Union | charge US.00 banking fee. |
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Money Gram | charge US$0.00 banking fee. |
Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
Packing
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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.
Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.
We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.
After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.
Part points
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The UC3843BN is a pulse width modulation (PWM) controller IC commonly used in power supply and motor control applications. It provides precise control of the output voltage by adjusting the duty cycle of the PWM signal. The UC3843BN can operate at frequencies up to 500 kHz and has built-in features such as overcurrent protection and soft start functionality.
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Equivalent
Equivalent products of UC3843BN chip include UC3843A, UC3843B, UC3843D, and TL3843P. These chips are all high performance current mode PWM controller ICs commonly used in switch-mode power supply applications. -
Features
1. Current mode control for constant frequency operation 2. Adjustable soft-start function to reduce stress on power supply components 3. Precision voltage reference 4. Pulse-by-pulse current limiting 5. Undervoltage lockout for reliable start-up operation 6. Overtemperature protection for thermal shutdown 7. Low startup and operating current for energy efficiency -
Pinout
UC3843BN is an 8-pin integrated circuit in dual in-line package (DIP). Pin 1 is for oscillator timing capacitor, Pin 2 is for oscillator timing resistor, Pin 3 is ground, Pin 4 is feedback input, Pin 5 is error amplifier output, Pin 6 is Vcc, Pin 7 is output, and Pin 8 is oscillator output. -
Manufacturer
UC3843BN is manufactured by Texas Instruments, a leading global semiconductor company that designs, manufactures, and sells a wide range of analog and digital integrated circuits for various applications. Texas Instruments is known for its high-quality products, innovation, and commitment to sustainability and corporate responsibility. -
Application Field
UC3843BN is commonly used in applications such as power supplies, voltage regulators, DC-DC converters, and battery chargers. It is also suitable for offline and flyback power supplies in various electronic devices and systems. -
Package
The UC3843BN is a through-hole package type IC chip in a 8-DIP form (Dual Inline Package) with a standard body size of 0.3 inches wide and 0.3 inches long.
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