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LM3405A Datasheet

Part Number LM3405A
Manufacturers Texas Instruments
Logo Texas Instruments
Description 1.6-MHz 1-A Constant Current Buck LED Driver
Datasheet LM3405A DatasheetLM3405A Datasheet (PDF)

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM3405A SNVS508D – OCTOBER 2007 – REVISED SEPTEMBER 2016 LM3405A 1.6-MHz, 1-A Constant Current Buck LED Driver With Internal Compensation in Tiny SOT and MSOP-PowerPAD™ Packages 1 Features •1 VIN Operating Range of 3 V to 22 V • Drives up to 5 High-Brightness LEDs in Series at 1A • Thin SOT-6 and MSOP-PowerPAD™-8 Packages • 1.6-MHz Switching Frequency • EN/DIM Input for Enabling and PWM Dimming of LEDs • 3.

  LM3405A   LM3405A






Part Number LM3405
Manufacturers Texas Instruments
Logo Texas Instruments
Description 1.6-MHz 1-A Constant Current Buck LED Driver
Datasheet LM3405A DatasheetLM3405 Datasheet (PDF)

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM3405 SNVS429C – OCTOBER 2006 – REVISED DECEMBER 2016 LM3405 1.6-MHz, 1-A Constant Current Buck Regulator For Powering LEDS 1 Features •1 VIN Operating Range of 3 V to 15 V • Drives up to 5 High-Brightness LEDs in Series at 1A • Thin SOT-6 Package • 1.6-MHz Switching Frequency • EN/DIM Input for Enabling and PWM Dimming of LEDs • 300-mΩ NMOS Switch • 40-nA Shutdown Current at VIN = 5 V • Internally Compen.

  LM3405A   LM3405A







Part Number LM3405
Manufacturers National Semiconductor
Logo National Semiconductor
Description 1A Constant Current Buck Regulator
Datasheet LM3405A DatasheetLM3405 Datasheet (PDF)

www.DataSheet4U.com LM3405 500kHz/1.6MHz 1A Constant Current Buck Regulator for Powering LEDs ADVANCE INFORMATION October 2006 LM3405 550kHz/1.6MHz 1A Constant Current Buck Regulator for Powering LEDs General Description Integrated with a 1A power switch, the LM3405 is a current mode control switching buck regulator designed to provide a simple, high efficiency solution for driving LEDs. With a 0.2V reference voltage feedback control to minimize power dissipation, an external resistor sets th.

  LM3405A   LM3405A







1.6-MHz 1-A Constant Current Buck LED Driver

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM3405A SNVS508D – OCTOBER 2007 – REVISED SEPTEMBER 2016 LM3405A 1.6-MHz, 1-A Constant Current Buck LED Driver With Internal Compensation in Tiny SOT and MSOP-PowerPAD™ Packages 1 Features •1 VIN Operating Range of 3 V to 22 V • Drives up to 5 High-Brightness LEDs in Series at 1A • Thin SOT-6 and MSOP-PowerPAD™-8 Packages • 1.6-MHz Switching Frequency • EN/DIM Input for Enabling and PWM Dimming of LEDs • 300-mΩ NMOS Switch • 40-nA Shutdown Current at VIN = 5 V • Internally Compensated Current-mode Control • Cycle-by-Cycle Current Limit • Input Voltage UVLO • Overcurrent Protection • Thermal Shutdown 2 Applications • LED Drivers • Constant Current Sources • Industrial Lighting • LED Flashlights • LED Lightbulbs Typical Application Circuit D3 D2 3 Description The LM3405A is a 1-A constant current buck LED driver designed to provide a simple, high efficiency solution for driving high power LEDs. With a 0.205-V reference voltage feedback control to minimize power dissipation, an external resistor sets the current as needed for driving various types of LEDs. Switching frequency is internally set to 1.6 MHz, allowing small surface mount inductors and capacitors to be used. The LM3405A uses current-mode control and internal compensation offering ease of use and predictable, high performance regulation over a wide range of operating conditions. With a maximum input voltage of 22 V, the device .


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