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ONSEMI UC3844BNG PWM Controller
The UC3844BNG is a high-performance, fixed-frequency, current-mode PWM controller designed for off-line and DC-to-DC converter applications. It features an oscillator with precise frequency control, a temperature-compensated reference, high-gain error amplifier, and a high-current totem pole output capable of directly driving power MOSFETs. Protective features include undervoltage lockouts with hysteresis, cycle-by-cycle current limiting, and a flip-flop that blanks the output every other cycle for programmable deadtimes ranging from 50% to 70%. It also offers automatic feed-forward compensation, low startup and operating currents, making it an efficient and reliable power regulation solution suitable for industrial and power supply systems.
ONSEMI UC3844BNG PWM Controller Specifications:
- Oscillator Frequency: 250 kHz guaranteed, operation up to 500 kHz
- Deadtime Programmable: 50% to 70%
- Undervoltage Lockout (UVLO): 16V (on), 10V (off)
- Reference Voltage: Internally trimmed, approximately 5.0 V
- Error Amplifier Gain: 90 dB, bandwidth 1.0 MHz
- Output: High-current totem pole, capable of source/sink up to 1.0 A
- Supply Voltage: 12 V to 36 V, protected by internal zener clamp
- Temperature Range: -25°C to +105°C, maximum junction temperature +150°C
- Power Dissipation: 702 mW in SOIC-8, 862 mW in SOIC-14 packages
- RoHS Compliant, Pb-Free, AEC-Q100 qualified
Buy the Buy ON Semiconductor UC3844BNG Fixed Frequency PWM Controller Online
Purchase the ON Semiconductor UC3844BNG PWM controller online today to ensure efficient power regulation. Designed for off-line and DC-DC converter applications, it features a precise oscillator, programmable deadtimes from 50% to 70%, undervoltage lockout thresholds of 16V on and 10V off, and a high-current totem pole output capable of driving power MOSFETs. With a guaranteed oscillation frequency of 250 kHz, low startup and operating currents, and protective features, this controller is ideal for industrial power supplies and robust power management solutions.
Get ON Semiconductor UC3844BNG today—built for precision, reliability, and seamless power management in industrial applications.
Frequently Asked Questions
Where can I buy ONSEMI UC3844BNG?
You can click on the BUY or RFQ button to purchase UC3844BNG from an authorized ONSEMI distributor.
How do I troubleshoot issues or seek technical support for part UC3844BNG?
You can download the UC3844BNG datasheet or visit the ONSEMI website for support.
Who is the manufacturer of UC3844BNG?
ONSEMI