UC2843AD8In StockTexas Instruments
UC2843AD8 is a current-mode PWM controller IC in SOIC-8 package from Texas Instruments, featuring 1A output, up to 500kHz frequency, and 70°C max temp. Priced from $0.19, 1pc MOQ, ships globally.
- Manufacturer
- Texas Instruments
- Package
- SOIC-8
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- UC2843AD8 Datasheet PDF
- Category
- power-management
- Price
- From $0.1863(MOQ 1)
- Temp Range
- 0.0°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Applications
UC2843AD8 is widely used in offline flyback power supplies, boost converters, and forward converter topologies in industrial power equipment, telecom infrastructure, and consumer electronics. It suits applications requiring tight regulation and high-frequency switching up to 500kHz.
Specifications
| Supply Voltage (Vcc) | 8V to 30V |
| Output Current | 1A (totem-pole) |
| Oscillator Frequency | Up to 500kHz |
| Operating Temperature | 0°C to 70°C |
| Reference Voltage | 5V ±1% |
| Control Method | Current Mode |
| Package | SOIC-8 (D) |
| Package | SOIC-8 |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for UC2843AD8:
Frequently Asked Questions
What is the UC2843AD8 and what does it do?
The UC2843AD8 is a current-mode PWM controller IC from Texas Instruments. It regulates switching power supplies by sensing inductor current each cycle and adjusting the duty cycle accordingly, delivering tight output regulation, fast transient response, and built-in cycle-by-cycle overcurrent protection.
What is the maximum switching frequency of UC2843AD8?
The UC2843AD8 oscillator supports frequencies up to 500kHz, set by an external resistor and capacitor. Higher frequency allows smaller magnetic components and capacitors, making it suitable for compact power designs in telecom and industrial equipment.
What package does UC2843AD8 come in and how many pins does it have?
UC2843AD8 is packaged in an SOIC-8 (8-pin small-outline IC) package. The 'D' suffix in the part number denotes this SOIC package. It is RoHS-compliant and lead-free, compatible with standard SMT assembly processes.
What are common alternatives to UC2843AD8?
Compatible alternatives include UC3843AD8 (industrial -40~85°C grade), NCP1200 (ON Semiconductor), UCC28C43D (TI upgraded version), and MC33067P. Always verify supply voltage range, frequency, and package before substituting in a design.
What is the price and minimum order quantity for UC2843AD8?
UC2843AD8 is available from $2.01 for single pieces, dropping to $0.19 at 935+ units. Minimum order quantity is 1 piece. FindMyChip stocks this part and supports global shipping with inquiry-based lead times.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.0092 | $2.01 |
| 143+ | $0.6028 | $86.20 |
| 308+ | $0.5274 | $162.44 |
| 935+ | $0.2150 | $201.03 |
| 1205+ | $0.2078 | $250.40 |
| 1615+ | $0.1863 | $300.87 |
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