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MAX5070BASA+

控制器, PWM, 16V电源, 1 MHz, NSOIC-8

MAXIM INTEGRATED PRODUCTS MAX5070BASA+
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制造商产品编号:
MAX5070BASA+
库存编号
2517183
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产品概述

The MAX5070BASA+ is a high performance, single ended, current mode PWM controller in 8 pin NSOIC package. This BiCMOS, current mode PWM controller has all the features required for wide input voltage range isolated/nonisolated power supplies. This controller is used for low and high power universal input voltage and telecom power supplies. It contains a fast comparator with only 60ns typical delay from current sense to output for overcurrent protection. It has an integrated error amplifier with the output at COMP. Soft-start is achieved by controlling the COMP voltage rise using external components. Frequency is adjustable from 20KHz to 1MHz with an external resistor and capacitor. The timing capacitor discharge current is trimmed allowing for programmable dead time and maximum duty cycle for a given frequency. The available saw-toothed waveform at RTCT can be used for slope compensation when needed. It is used in universal input AC/DC power supplies.
  • FB input voltage range from 2.465V to 2.535V, maximum voltage stability of 0.5% at 12V < VCC < 25V
  • Operating temperature range from -40°C to 125°C
  • Output voltage range from 4.95V to 5.05V, maximum initial accuracy of 57KHz at TA = +25°C
  • Pin-for-pin replacement for UC2844
  • 2A drive source and 1A sink capability
  • Up to 1MHz switching frequency
  • Trimmed oscillator capacitor discharge current sets maximum duty cycle accurately
  • Accurate 5% start and stop voltage with 6V hysteresis
  • Low 32µA start-up current, overtemperature shutdown
  • 5V regulator output (VREF) with 20mA capability

应用

消费电子产品, 便携式器材, 音频, 电源管理

产品信息

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16V

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NSOIC

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8引脚

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1MHz

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-40°C

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125°C

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MSL 1 -无限制
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技术文档 (1)

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Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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