Unisonic Technologies UC3842G
The UTC UC3842G of high performance current mode controller is specifically designed for off-line and DC-to-DC converter applications offering the designer a cost effective solution with minimal external components. This integrated circuit features approximately 40μA start up current, a precision reference trimmed the error amplifier input.DESCRIPTION
Also included are protective features consisting of input and reference undervoltage lockouts each with hysteresis, cycle-by-cycle current limiting, and so on.●
FEATURES
* Low startup and operating current * User defined switching frequency(Norm is 52kHz) * Power-saving mode for low power * Under voltage lockout with hysteresis * Over voltage protection * Latching PWM for Cycle-By-Cycle current limiting * Internally trimmed reference with undervoltage lockout● ORDERING INFORMATION Ordering Number Lead Free Halogen Free UC3842GL-D08-T UC3842GP-D08-T UC3842GL-S08-R UC3842GP-S08-R Package DIP-8 SOP-8 Packing Tube Tape Reel
● MARKING DIP-8 SOP-8 Copyright © 2017 Unisonic Technologies Co., Ltd 1 of 7 QW-R103-036.E UC3842G
● PIN CONFIGURATION COMP 1 FB 2 CS 3 CT 4 LINEAR INTEGRATED CIRCUIT 8 VREF 7 VCC 6 OUT 5 GND
● PIN
DESCRIPTION
PIN NO. 1 2 3 4 5 6 7 8 PIN NAME COMP FB CS CT GND OUT VCC VREF I/O O I I I O O● BLOCK DIAGRAM Function This pin is error amplifier output The erro...