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UC3844L-S08-R 数据表(PDF) 1 Page - Unisonic Technologies |
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UC3844L-S08-R 数据表(HTML) 1 Page - Unisonic Technologies |
1 / 6 page UNISONIC TECHNOLOGIES CO., LTD UC3844/45 LINEAR INTEGRATED CIRCUIT www.unisonic.com.tw 1 of 6 Copyright © 2013 Unisonic Technologies Co., Ltd QW-R103-010.G HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS DESCRIPTION The UTC UC3844/3845 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 UC3844 and UC3845 are the maximum duty cycle ranges and under-voltage lockout thresholds. The UC3844 ideally suited to off-line applications with UVLO thresholds of 16V(ON) and 10V(OFF), and UC3845 has UVLO thresholds of 8.5V(ON) and 7.6V(OFF) for lower voltage applications. FEATURES * Operation output switching frequency up to 500 kHz * 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 UC3844L-D08-T UC3844G-D08-T DIP-8 Tube UC3844L-S08-R UC3844G-S08-R SOP-8 Tape Reel UC3844L-S08-T UC3844G-S08-T SOP-8 Tube UC3845L-D08-T UC3845G-D08-T DIP-8 Tube UC3845L-S08-R UC3845G-S08-R SOP-8 Tape Reel UC3845L-S08-T UC3845G-S08-T SOP-8 Tube |
类似零件编号 - UC3844L-S08-R |
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类似说明 - UC3844L-S08-R |
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