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UC3848G-D08-T Datasheet(PDF) 1 Page - Unisonic Technologies |
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UC3848G-D08-T Datasheet(HTML) 1 Page - Unisonic Technologies |
1 / 11 page UNISONIC TECHNOLOGIES CO., LTD UC3848 LINEAR INTEGRATED CIRCUIT www.unisonic.com.tw 1 of 11 Copyright © 2011 Unisonic Technologies Co., Ltd QW-R103-033.F HIGH PERFORMANCE CURRENT MODE CONTROLLERS DESCRIPTION The UTC UC3848 is designed to provide several special enhancements to satisfy the needs, for example, Power-Saving mode for low standby power (<0.3W), Frequency Hopping , Constant Output Power Limiting , Slope Compensation ,Over Current Protection (OCP), Over Voltage Protection (OVP), Over Load Protection (OLP), Under Voltage Lock Out (UVLO), Short Circuit Protection (SCP) , Over Temperature Protection (OTP) etc. IC will be shutdown or can auto-restart in situations. FEATURES * Low Startup Current (about 22μA) * Fixed Switching Frequency(Norm. is 68KHz) * Frequency Hopping for Improved EMI Performance. * Lower than 0.3W Standby Power Design * Linearly Decreasing Frequency to 26KHz During Light Load * Soft Start * Internal Slope Compensation * Constant Power Limiting for Universal AC input Range * Gate Output Maximum Voltage Clamp(15V) * Max Duty Cycle 74% * Over Temperature Protection * Overload Protection * Over Voltage Protection * Leading Edge Blanking * Cycle-by-Cycle Current Limiting * Under Voltage Lock Out * Short Circuit Protection ORDERING INFORMATION Ordering Number Lead Free Halogen Free Package Packing UC3848L-D08-T UC3848G-D08-T DIP-8 Tube UC3848L-S08-R UC3848G-S08-R SOP-8 Tape Reel |
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