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ONSEMI UC2842BNG PWM Controller

The UC2842BNG is a high-performance, fixed-frequency, current-mode pulse width modulation (PWM) controller designed for off-line and DC-DC converter applications. It offers a cost-effective solution with minimal external components and includes features such as a trimmed oscillator for precise duty cycle control, a temperature-compensated reference, a high-gain error amplifier, a current sensing comparator, and a high-current totem-pole output suitable for driving power MOSFETs. Additional protective features include input and reference undervoltage lockouts with hysteresis, cycle-by-cycle current limiting, programmable output deadtime, and a latch for single pulse metering, making it well-suited for power management and industrial applications.

Authorized Distributors
Source:DigiKey
Part No:UC2842BNG
Stock:118
Inv Date:06-10-2026
Price: Unit price: $1.14
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Part No:UC2842BNG
Stock:1350
Inv Date:06-11-2026
Price: Unit price: $1.14
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Part No:UC2842BNG
Stock:0
Inv Date:06-10-2026
Price: Unit price: $0.61
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Part No:UC2842BNG
Stock:0
Inv Date:06-10-2026
Price: Unit price: $1.027
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Part No:UC2842BNG
Stock:0
Inv Date:06-10-2026
Price: Unit price: $1.027
Buy/RFQ:
Part No:UC2842BNG
Stock:3300
Inv Date:06-10-2026
Price: Unit price: $0.35
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ONSEMI UC2842BNG PWM Controller Specifications:

  • Oscillator frequency: 250 kHz
  • Maximum output duty cycle: 94-96%
  • Reference output voltage: 5.0 V ±1%
  • Undervoltage lockout thresholds: 16 V (on), 10 V (off)
  • Operating junction temperature range: -25°C to +105°C
  • Output drive current: up to 1.0 A
  • Error amplifier gain: 90 dB
  • Power dissipation (SOIC-14 package): 862 mW
  • Thermal resistance junction-to-air (SOIC-14): 145°C/W
  • Package type: SOIC-14
  • Input voltage: 12 V to 25 V
  • Cycle-by-cycle current limit with latch for single pulse
  • Built-in hysteresis in undervoltage lockouts
  • Soft-start circuitry with adjustable ramp
  • Designed for power management and industrial applications

Buy the ON Semiconductor UC2842BNG – Reliable PWM Controller for Industrial Applications

Purchase the ON Semiconductor UC2842BNG online today—engineered for high performance in power supply and industrial applications. Its precise oscillator, undervoltage lockouts, cycle-by-cycle current limiting, and robust output driver make it an ideal choice for efficient DC-DC converters and power management systems. With minimal external components required, it simplifies design while ensuring reliable operation at high frequencies up to 250 kHz. Order now to optimize your power designs with this durable and cost-effective PWM control solution.

Get ON Semiconductor UC2842BNG today—built for precision and long-lasting durability in power conversion systems.

Frequently Asked Questions

Where can I buy ONSEMI UC2842BNG?

You can click on the BUY or RFQ button to purchase UC2842BNG from an authorized ONSEMI distributor.

How do I troubleshoot issues or seek technical support for part UC2842BNG?

You can download the UC2842BNG datasheet or visit the ONSEMI website for support.

Who is the manufacturer of UC2842BNG?

ONSEMI

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