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ISL8841AABZ Datasheet(PDF) 1 Page - Intersil Corporation |
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ISL8841AABZ Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 15 page 1 ® FN6320.3 ISL8840A, ISL8841A, ISL8842A, ISL8843A, ISL8844A, ISL8845A High Performance Industry Standard Single-Ended Current Mode PWM Controller The ISL884xA is a high performance drop-in replacement for the popular 28C4x and 18C4x PWM controllers suitable for a wide range of power conversion applications including boost, flyback, and isolated output configurations. Its fast signal propagation and output switching characteristics make this an ideal product for existing and new designs. Features include 30V operation, low operating current, 90 μA start-up current, adjustable operating frequency to 2MHz, and high peak current drive capability with 20ns rise and fall times. Pinout ISL8840A, ISL8841A, ISL8842A, ISL8843A, ISL8844A, ISL8845A (8 LD SOIC, MSOP) TOP VIEW Features • 1A MOSFET gate driver •90 μA start-up current, 125μA maximum • 35ns propagation delay current sense to output • Fast transient response with peak current mode control • 30V operation • Adjustable switching frequency to 2MHz • 20ns rise and fall times with 1nF output load • Trimmed timing capacitor discharge current for accurate deadtime/maximum duty cycle control • 1.5MHz bandwidth error amplifier • Tight tolerance voltage reference over line, load and temperature • ±3% current limit threshold • Pb-free plus anneal available and ELV, WEEE, RoHS Compliant Applications • Telecom and datacom power • Wireless base station power • File server power • Industrial power systems • PC power supplies • Isolated buck and flyback regulators • Boost regulators PART NUMBER RISING UVLO MAX. DUTY CYCLE ISL8840A 7.0 100% ISL8841A 7.0 50% ISL8842A 14.4V 100% ISL8843A 8.4V 100% ISL8844A 14.4V 50% ISL8845A 8.4V 50% COMP FB RTCT VREF VDD OUT GND 1 2 3 4 8 CS 7 6 5 Data Sheet April 18, 2007 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2005, 2006, 2007. All Rights Reserved. All other trademarks mentioned are the property of their respective owners. |
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