ISL8843

The ISL8843 is an industry standard drop-in replacement for the popular 28C43 and 18C43 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, 90uA start-up current, adjustable operating frequency to 2MHz, and high peak current drive capability with 20ns rise and fall times.

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

ISL8843 特点

• 1A MOSFET gate driver
• 90uA start-up current, 125uA 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

ISL8843 芯片订购指南

芯片型号	产品状态	温度范围	封装尺寸图
ISL8843ABZ	量产	工业级	8 Ld SOIC
ISL8843ABZ-T	量产	工业级	8 Ld SOIC T+R
ISL8843AUZ	量产	工业级	8 Ld MSOP
ISL8843AUZ-T	量产	工业级	8 Ld MSOP T+R
ISL8843MBZ	量产	工业级	8 Ld SOIC
ISL8843MBZ-T	量产	工业级	8 Ld SOIC T+R
ISL8843MUZ	量产	工业级	8 Ld MSOP
ISL8843MUZ-T	量产	工业级	8 Ld MSOP T+R

ISL8843 应用技术支持与电子电路设计开发资源下载

1. ISL8843 数据资料 datatSheet 下载.PDF
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