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APW7073QE-TY Datasheet(PDF) 1 Page - Anpec Electronics Coropration |
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APW7073QE-TY Datasheet(HTML) 1 Page - Anpec Electronics Coropration |
1 / 25 page Copyright © ANPEC Electronics Corp. Rev. A.1 - Apr., 2006 APW7073 www.anpec.com.tw 1 Features Applications General Description The APW7073 is voltage mode, synchronous PWM controller which drives dual N-channel MOSFETs. The device integrates all of the control, monitoring and protecting functions into a single package, provides one controlled power output with under-voltage and over-current protections. The APW 7073 provides excellent regulation for output load variation. The internal 0.6V temperature- compensated reference voltage is designed to meet the requirement of low output voltage applications. The device includes a 200kHz free-running triangle-wave oscillator that is adjustable from 50kHz to 1000kHz. The APW7073 with excellent protection functions: POR, OCP and UVP. The Power-On-Reset (POR) circuit can monitor the VCC, EN, and OCSET voltage to make sure the supply voltage exceeds their threshold voltage while the controller is running. The Over-Current Protection (OCP) monitors the output current by using the voltage drop across the upper and lower MOSFET’s R DS(ON). When the output current reaches the trip point, the controller will run the soft- start function until the fault events are removed. The Under-Voltage Protection (UVP) monitors the voltage at FB pin (V FB) for short-circuit protection, when the V FB is less than 50% of VREF, the controller will shut- down the IC directly. • Graphic Cards Synchronous Buck PWM Controller • Single 12V Power Supply Required • 0.6V Reference with 1% Accurate • Shutdown and Soft-start Function • Programmable Frequency Range from 50 kHz to 1000kHz • Voltage Mode PWM Control Design • Up to 100% Duty Cycle • Under-Voltage Protection • Over-Current Protection • SOP-14, QFN-16 Packages • Lead Free Available (RoHS Compliant) ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. |
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