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ONSEMI UC3843BD1G Current Mode Controller
The UC3843BD1G is a high-performance fixed-frequency current mode controller suitable for offline and DC-DC applications. It incorporates a precise, temperature-compensated reference, a high-gain error amplifier, and a built-in current sensing comparator. Its high-current totem pole output is designed for direct driving of power MOSFETs. Features include input and reference undervoltage lockouts with hysteresis, cycle-by-cycle current limiting, and programmable output dead-time. Additional benefits include automatic feed-forward compensation, low-power startup, internal trimming for enhanced accuracy, making it ideal for industrial, power conversion, and signal processing systems.
ONSEMI UC3843BD1G Current Mode Controller Specifications:
- Oscillator Frequency: 250 kHz guaranteed, adjustable via resistor and capacitor
- Reference Voltage: 5.0 V trimmed, ±1% tolerance
- Undervoltage Lockout Thresholds: 8.4 V (on), 7.6 V (off)
- Output Drive Capability: High-current totem pole stage, up to 1.0 A peak
- Input Voltage Range: Vcc from 8.2 V (start) to 20 V (operational)
- Operating Temperature: -25°C to +105°C depending on package
- Power Dissipation: SOIC-14 case, maximum 862 mW at 25°C
- Protection Features: UVLO, cycle-by-cycle current limit, latch for single pulse
- Switching Mode: Fixed frequency, current mode control
- Applications: Offline power supplies, DC-DC converters, industrial systems
Buy the ON Semiconductor Series UC3843 Controller: UC3843BD1G
Purchase the ON Semiconductor UC3843BD1G online today to ensure your power supply or DC-DC converter project benefits from precise control, robust protection features, and efficient operation. This high-performance controller is engineered for industrial applications, signal processing, and power management systems, providing a reliable solution with low start-up current and internal trimming for accuracy. Its high-current totem pole output directly drives power MOSFETs, simplifying design and enhancing performance. Order now and optimize your power conversion designs for stability, efficiency, and durability.
Buy ON Semiconductor UC3843BD1G now and experience unmatched reliability and high efficiency in power management applications.
Frequently Asked Questions
Where can I buy ONSEMI UC3843BD1G?
You can click on the BUY or RFQ button to purchase UC3843BD1G from an authorized ONSEMI distributor.
How do I troubleshoot issues or seek technical support for part UC3843BD1G?
You can download the UC3843BD1G datasheet or visit the ONSEMI website for support.
Who is the manufacturer of UC3843BD1G?
ONSEMI