Current Mode PWM Controller UC3845B

The Current Mode Pwm Controller UC3845B is a high performance fixed frequency current mode controller. This current mode PWM is specifically designed for Off-Line and dc-to-dc converter applications offering the designer a cost-effective solution with minimal external components. This PWM controller features an oscillator, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET. Also included are protective features consisting of input and reference under-voltage lockouts each with hysteresis, cycle-by-cycle current limiting, a latch for single pulse metering, and a flip-flop which blanks the output of every other oscillator cycle, allowing output deadtimes to be programmed from 50% to 70%. Features Of High-Performance Current Mode PWM Controller UC3845B: • Trimmed oscillator for precise frequency control. • Oscillator frequency guaranteed at 250 kHz. • Current mode operation to 500 kHz output switching frequency. • Output deadtime adjustable from 50% to 70%. • Automatic feed-forward compensation. • Latching PWM for cycle-by-cycle current limiting. • Internally trimmed reference with undervoltage lockout. • High current totem pole output. • Under-voltage lockout with hysteresis. • Low startup and operating current. Specifications Of Best 8 Pins PWM Controller IC UC3845B: • Supply Voltage (Ii < 30mA): Self Limiting • Analog Inputs (pins 2, 3): - 0.3 to 5.5V Package Includes: • 1 x Current Mode PWM Controller UC3845B Best Online Shopping website for Current Mode PWM Controller UC3845B 8 Pin PWM Controller IC in cheap price in Karachi, Lahore, Islamabad, Rawalpindi, Sukkur,…