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UC3842GL-S08-T Scheda tecnica(PDF) 1 Page - Unisonic Technologies |
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UC3842GL-S08-T Scheda tecnica(HTML) 1 Page - Unisonic Technologies |
1 / 8 page UNISONIC TECHNOLOGIES CO., LTD UC3842G LINEAR INTEGRATED CIRCUIT www.unisonic.com.tw 1 of 8 Copyright © 2007 Unisonic Technologies Co., Ltd QW-R103-036.A HIGH PERFORMANCE CURRENT MODE CONTROLLER ■ DESCRIPTION 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 300µA start up current, a precision reference trimmed the error amplifier input. 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 *Pb-free plating product number: UC3842GL ORDERING INFORMATION Ordering Number Normal Lead Free Plating Package Packing UC3842G-D08-T UC3842GL-D08-T DIP-8 Tube UC3842G-S08-R UC3842GL-S08-R SOP-8 Tape Reel UC3842G-S08-T UC3842GL-S08-T SOP-8 Tube UC3842GL-D08-T (1)Packing Type (2)Package Type (3)Lead Plating (1) T: Tube, R: Tape Reel (2) D08: DIP-8, S08: SOP-8 (3) L: Lead Free Plating, Blank: Pb/Sn |
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