DESCRIPTION
The UTC UC2844/2845 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. FEATURES
* Operation output switching frequency up to 500 kHz * Output deadtime adjustable from 50% to 70% * Automatic feed forward compensation * 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 UC2844L-S08-R UC2844G-S08-R UC2844L-S08-T UC2844G-S08-T UC2845L-S08-R UC2845G-S08-R UC2845L-S08-T UC2845G-S08-T Package SOP-8 SOP-8 SOP-8 SOP-8 Packing Tape Reel Tube Tape Reel Tube Copyright © 2012 Unisonic Technologies Co., Ltd 1 of 7 QW-R103-051.B UC2844/45 PIN CONFIGURATION LINEAR INTEGRATED CIRCUIT PIN DESCRIPTION
PIN NO 1 2 3 4 5 6 7 8 PIN NAME Compensation VFB ISENSE RT/CT GND Output VCC VREF FUNCTION Error amplifier output, this pin is made available for loop compensation.
Unisonic Technologies
