LM3410

具有内部补偿的 525kHz/1.6MHz、恒流升压和 SEPIC LED 驱动器

The and LM3410-Q1 constant current LED driver are a monolithic, high frequency, PWM DC-DC converter, available in 6-pin WSON, 8-pin MSOP-PowerPad™, and 5-pin SOT-23 packages. With a minimum of external components the LM3410 and LM3410-Q1 are easy to use. It can drive 2.8-A typical peak currents with an internal 170-mΩ NMOS switch. Switching frequency is internally set to either 525 kHz or 1.6 MHz, allowing the use of extremely small surface mount inductors and chip capacitors. Even though the operating frequency is high, efficiencies up to 88% are easy to achieve. External shutdown is included, featuring an ultra-low standby current of 80 nA. The LM3410 and LM3410-Q1 use current-mode control and internal compensation to provide high-performance over a wide range of operating conditions. Additional features include PWM dimming, cycle-by-cycle current limit, and thermal shutdown.

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Qualified for Automotive Applications

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AEC-Q100 Test Guidance With the Following:

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Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range

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Device HBM ESD Classification Level 2

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Device CDM ESD Classification Level C6

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Space-Saving SOT-23 and WSON Packages

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Input Voltage From 2.7 V to 5.5 V

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Output Voltage From 3 V to 24 V

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2.8-A Typical Switch Current Limit

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High Switching Frequency

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525 KHz LM3410Y

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1.6 MHz LM3410X

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170-mΩ NMOS Switch

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190-mV Internal Voltage Reference

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Internal Soft Start

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Current-Mode, PWM Operation

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Thermal Shutdown