onsemi UC3842BNG Current Mode PWM Controller — Single Output, 500 kHz, 1 A Totem Pole Output, PDIP-8, full tube of 50 pieces. Fixed-frequency current mode controller designed for off-line and DC-DC converter applications. Features a trimmed oscillator, temperature-compensated 5 V reference, high-gain error amplifier, cycle-by-cycle current limiting, and a high-current totem pole output for direct MOSFET gate drive.
Available in stock — ships within 24 hours after payment.
Product overview
| Part number | UC3842BNG |
| Manufacturer | onsemi (ON Semiconductor) |
| Date code | 18+ |
| Quantity | 50 pcs (full tube) |
| Product type | Current mode PWM controller |
| Package | PDIP-8 (N suffix) |
| Supply voltage (VCC) | 15 V typical; UVLO on at 16 V, off at 10 V |
| Output current (peak) | ±1 A (totem pole) |
| Oscillator frequency | Up to 500 kHz; guaranteed at 250 kHz |
| Maximum duty cycle | 96% typical |
| Reference voltage | 5.0 V ± 1% (at 25°C) |
| Operating temperature | 0°C to +70°C |
| RoHS compliance | Yes — Pb-Free, Halide-Free |
| Condition | New in original packaging (OVP) |
Applications
- Off-line flyback and forward switch-mode power supplies
- DC-DC converter designs requiring fixed-frequency current mode control
- Power MOSFET gate drive circuits needing high peak current output
- Industrial power supplies, adapters, and battery chargers
Shipping
- Ships within 24 hours after payment
- Secure packaging for safe delivery
- Free delivery within Germany
Warranty & compliance
- 12-month warranty included
- Product is fully compliant with EU industry standards
- VAT invoice included with every order
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