What are the key features of this controller?

It features a trimmed oscillator (up to 500 kHz), high-gain error amplifier, cycle-by-cycle current limiting, and undervoltage lockout (UVLO) with hysteresis.

What is the operating temperature range?

This specific 'V' suffix version is rated for an industrial operating temperature range of -40°C to +105°C.

What is the pinout of UC3842BVD1R2G?

Use the UC3842BVD1R2G datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about UC3842BVD1R2G pinout to locate pins, power rails, and interface signals before layout.

UC3842BVD1R2G Datasheet, Specs, Alternatives & ECAD | onsemi

AI summary

The UC3842BVD1R2G is a high-performance current-mode PWM controller from onsemi, optimized for off-line and DC-DC power supply applications.

Best for

Off-line power supplies
DC-DC converters
Power MOSFET gate driving

Avoid if

Applications requiring extremely low power consumption during standby
Designs where subharmonic oscillation at >50% duty cycle cannot be managed

Check before use

Ensure the UVLO thresholds (16V/10V) match your startup circuit requirements.
Verify the timing resistor (RT) is at least 680 ohms to prevent oscillator latch-up.