UC1843B-D Datasheet | Unisonic Technologies

UNISONIC TECHNOLOGIES CO., LTD UC1842B/43B-D HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS LINEAR INTEGRATED CIRCUIT - DESCRIPTION The UTC UC1842B-D/1843B-D are high performance fixed frequency current mode controllers that specifically designed for Off-Line and DC to DC converter applications with minimal external parts count. The differences between UC1842B-D and UC1843B-D are the under-voltage lockout thresholds. The UC1842B-D ideally suited to off-line applications with UVLO thresholds of 16V(ON) and 10V(OFF), and UC1843B-D has UVLO thresholds of 8.4V(ON) and 7.6V(OFF) for lower voltage applications. - Features - Operation output switching frequency up to 500 kHz - Automatic feed forward pensation - Latching PWM for cycle-by-cycle current limiting - High current totem pole output - Internally trimmed reference with under voltage lockout - UVLO with hysteresis - Low startup and operating current - ORDERING INFORMATION Ordering Number Lead Free Halogen Free UC1842BL-D-D08-T UC1842BG-D-D08-T UC1842BL-D-S08-R UC1842BG-D-S08-R UC1843BL-D-D08-T UC1843BG-D-D08-T UC1843BL-D-S08-R UC1843BG-D-S08-R Package DIP-8 SOP-8 DIP-8...