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UC1100

Unisonic Technologies
Part Number UC1100
Manufacturer Unisonic Technologies
Description LOW-POWER HIGH PRECISION CC/CV PRIMARY SIDE SWITCHING REGULATOR
Published Mar 6, 2016
Detailed Description UNISONIC TECHNOLOGIES CO., LTD UC1100 Preliminary CMOS IC LOW-POWER HIGH PRECISION CC/CV PRIMARY SIDE SWITCHING RE...
Datasheet PDF File UC1100 PDF File

UC1100
UC1100


Overview
UNISONIC TECHNOLOGIES CO.
, LTD UC1100 Preliminary CMOS IC LOW-POWER HIGH PRECISION CC/CV PRIMARY SIDE SWITCHING REGULATOR  DESCRIPTION The UTC UC1100 is a primary control unit for switch mode charger and adapter applications.
The controlled variable is transferred by an auxiliary winding from the secondary to the primary side.
The device uses Pulse Frequency Modulation (PFM) method to build discontinuous conduction mode (DCM) flyback power supplies.
The UTC UC1100 operates in primary-side sensing and regulation.
Opto-coupler and TL431 could be eliminated.
It also eliminates the need of loop compensation circuitry while maintaining stability.
The UTC UC1100 achieves excellent regulation and high average efficiency, yet meets the requirement for no-load consumption less than 30mW.
The UTC UC1100 achieves high precision CV/CC regulation and high power efficiency.
It offers comprehensive protection coverage with auto-recovery features including Cycle-by-cycle current limiting, output over voltage protection, feedback loop open protection, short circuit protection, leading edge blanking, VCC under voltage lockout, etc.
54 6 1 23 SOT-26  FEATURES * Primary side control for rectangular constant current and * Random frequency modulation to reduce system EMI constant voltage output * Flyback topology in DCM operation * 30mW no-load input power feasible * Open feedback protection * Tight CC regulation performance * Built-in soft start * Sub-microampere start-up current * Short circuit protection * Eliminates control loop compensation circuitry * Eliminates opto-coupler and secondary CV/CC control circuitry  ORDERING INFORMATION Ordering Number UC1100G-AG6-R Package SOT-26 Packing Tape Reel www.
unisonic.
com.
tw Copyright © 2015 Unisonic Technologies Co.
, Ltd 1 of 6 QW-R129-007.
a UC1100  MARKING INFORMATION Preliminary  PIN CONFIGURATION CMOS IC  PIN DESCRIPTION PIN NO.
1 2, 5 3 4 6 PIN NAME OUT GND VCC CS FB DESCRIPTION This pin drives t...


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