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ONSEMI UC2843BD1G PWM Controller
The UC2843BD1G is a high-performance, fixed-frequency, current-mode PWM controller suited for off-line and DC-DC converters. It features a precise, trimmed oscillator, a temperature-compensated voltage reference, and a high-gain error amplifier for improved regulation. The device includes a current sensing comparator, a high-current totem pole output for driving MOSFETs, and protective functions like undervoltage lockout with hysteresis, cycle-by-cycle current limiting, adjustable deadtime, and a latch for single pulse control. Ideal for power management, industrial systems, and efficiency-critical applications, it ensures reliable operation with minimal external components.
ONSEMI UC2843BD1G PWM Controller Specifications:
- Oscillator Frequency: Programmable, typically 250 kHz under controlled conditions
- Reference Voltage: 5.0 V bandgap, with ±2.0% (UC2843BD1G)
- Undervoltage Lockout Thresholds: UC2843BD1G - 8.4 V (on), 7.6 V (off)
- Output Current Drive: High-current totem pole, capable of 1.0 A peak
- Operating Temperature Range: -25°C to +105°C
- Package: SOIC-14, 8-pin SOIC-8
- Power Dissipation: Max 862 mW (SOIC-14), 702 mW (SOIC-8)
- Input Voltage: Up to 30 V bias, can withstand input pin voltages of -55 V to +55 V
- Cycle-by-cycle current limiting and programmable deadtime
- Error amplifier gain: 90 dB with 1.0 MHz bandwidth
- Protection: Undervoltage lockout with hysteresis, over-current detection, soft-start
- Application areas include switching power supplies, industrial control, battery chargers, and distribution systems.
Buy the Buy ON Semiconductor UC2843BD1G Power Controller Part Number UC2843BD1G Online
Enhance your power management systems with the ON Semiconductor UC2843BD1G PWM controller, offering precise cycle control, high current drive, and extensive safety features. Designed for off-line and DC-DC applications, this robust device minimizes external component count and maximizes efficiency. Its integrated features include a high-gain error amplifier, a trimmed oscillator for accurate frequency, and comprehensive protection like UVLO and cycle-by-cycle current limiting. Ideal for industrial, power supply, and control systems, purchase online for quick, secure delivery and reliable performance.
Order your ON Semiconductor UC2843BD1G PWM Controller today and benefit from reliable power regulation and advanced protection features for industrial applications.
Frequently Asked Questions
Where can I buy ONSEMI UC2843BD1G?
You can click on the BUY or RFQ button to purchase UC2843BD1G from an authorized ONSEMI distributor.
How do I troubleshoot issues or seek technical support for part UC2843BD1G?
You can download the UC2843BD1G datasheet or visit the ONSEMI website for support.
Who is the manufacturer of UC2843BD1G?
ONSEMI