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UC2844L-S08-T データシート(PDF) 1 Page - Unisonic Technologies |
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UC2844L-S08-T データシート(HTML) 1 Page - Unisonic Technologies |
1 / 7 page UNISONIC TECHNOLOGIES CO., LTD UC2844/45 LINEAR INTEGRATED CIRCUIT www.unisonic.com.tw 1 of 7 Copyright © 2012 Unisonic Technologies Co., Ltd QW-R103-051.B HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS 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. The differences between UC2844 and UC2845 are the maximum duty cycle ranges and under-voltage lockout thresholds. The UC2844 ideally suited to off-line applications with UVLO thresholds of 16V(ON) and 10V(OFF), and UC2845 has UVLO thresholds of 8.5V(ON) and 7.6V(OFF) for lower voltage applications. 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 Package Packing Lead Free Halogen Free UC2844L-S08-R UC2844G-S08-R SOP-8 Tape Reel UC2844L-S08-T UC2844G-S08-T SOP-8 Tube UC2845L-S08-R UC2845G-S08-R SOP-8 Tape Reel UC2845L-S08-T UC2845G-S08-T SOP-8 Tube |
同様の部品番号 - UC2844L-S08-T |
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同様の説明 - UC2844L-S08-T |
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