UC3843BD1G ONSEMI Current Mode Controller, 25V-12V supply, 500 kHz, 13.4V/200mA out, SOIC-8

The UC3843BD1G is a high-performance fixed-frequency Current Mode Controller specifically designed for offline and DC-DC converter applications. This integrated circuit features a trimmed oscillator for precise duty cycle control, a temperature-compensated reference and high gain error amplifier, a current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET. Also includes protective features consisting of input and reference under-voltage lockouts each with hysteresis, cycle-by-cycle current limiting, programmable output dead-time, and a latch for single pulse metering.

Applications:

1. Industrial
2. Signal Processing

Features:

1. Trimmed oscillator for precise frequency control
2. Automatic feed-forward compensation
3. Latching PWM for cycle-by-cycle current limiting
4. Internally trimmed reference with under-voltage lockout
5. High current totem pole output
6. Under-voltage lockout with hysteresis
7. Low start-up and operating current

Package Includes:

1 x UC3843BD1G ONSEMI Current Mode Controller, 25V-12V supply, 500 kHz, 13.4V/200mA out, SOIC-8