UC3842B Datasheet | Unisonic Technologies

UNISONIC TECHNOLOGIES CO., LTD UC3842B/3843B LINEAR INTEGRATED CIRCUIT HIGH PERFORMANCE CURRENT MODE CONTROLLERS - DESCRIPTION The UTC UC3842B/3843B are specifically designed for off-line and dc-to-dc converter applications offering the designer a cost-effective solution with minimal external ponents. The UC3842B has UVLO thresholds 16V (on) and 10V(off), ideally suited for off-line converters. The UC3843B is tailored for lower voltage applications having UVLO thresholds of 8.4V(on) and 7.6V(off). - Features - Trimmed oscillator for precise frequency control - Oscillator frequency guaranteed at 250kHz - Current mode operation to 500kHz - Automatic feed forward pensation - Latching PWM for cycle-by-cycle current limiting - Internally trimmed reference with undervoltage lockout - High current totem pole output - Undervoltage lockout with hysteresis - Low startup and operating current - ORDERING INFORMATION Ordering Number Lead Free Halogen Free UC3842BL-D08-T UC3842BP-D08-T UC3842BL-S08-R UC3842BP-S08-R UC3843BL-D08-T UC3843BP-D08-T UC3843BL-S08-R UC3843BP-S08-R Package...