LM3405AXMK Mosfet Power Transistor LED Lighting Drivers 1.6MHz 1A Constant Crnt Buck LED Dvr
Brand Name:TI
Model Number:LM3405AXMK
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Delivery Time:The goods will be shipped within 3 days once received fund
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Shenzhen China
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Room 1204, DingCheng International Building, 518028 Futian District, SHENZHEN, CN
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Product Details
LM3405AXMK Mosfet Power Transistor LED Lighting Drivers 1.6MHz 1A Constant Crnt Buck LED Dvr
1 Features
- 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-PowerPADTM-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
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 can drive up to 5 High-Brightness LEDs in series at 1-A forward current, with the single LED forward voltage of approximately 3.7 V. Additional features include user accessible EN/DIM pin for enabling and PWM dimming of LEDs, thermal shutdown, cycle-by-cycle current limit and overcurrent protection.
Device Information
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
LM3405A | SOT (6) | 2.90 mm × 1.60 mm |
MSOP-PowerPAD (8) | 3.00 mm × 3.00 mm |
LM3405AXMK Mosfet Power Transistor LED Lighting Drivers 1.6MHz 1A Constant Crnt Buck LED Dvr
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