LM3409HVMYX/NOPB Buck LED Driver 6V-75V Input Constant Current Control Analog/PWM Dimming Low Dropout High Efficiency Thermal Shutdown SOP-8 Package

LM3409HVMYX/NOPB Buck LED Driver 6V-75V Input Constant Current Control Analog/PWM Dimming Low Dropout High Efficiency Thermal Shutdown SOP-8 Package

Features

• LM3409-Q1 and LM3409HV-Q1 are Automotive Grade Products: AEC-Q100 Grade 1 Qualified

• 2-Ω, 1-A Peak MOSFET Gate Drive

• VIN Range: 6 V to 42 V (LM3409, LM3409-Q1)

• VIN Range: 6 V to 75 V (LM3409HV, LM3409HV Q1)

• Differential, High-Side Current Sense

• Cycle-by-Cycle Current Limit

• NoControl Loop Compensation Required

• 10,000:1 PWM Dimming Range

• 250:1 Analog Dimming Range

• Supports All-Ceramic Output Capacitors and Capacitor-less Outputs

• Low-Power Shutdown and Thermal Shutdown

• Thermally Enhanced 10-Pin, HVSSOP Package

Applications

• LEDDriver

• Constant Current Source

• Automotive Lighting

• General Illumination

Description

The LM3409, LM3409-Q1, LM3409HV, and LM3409HV-Q1 are P-channel MOSFET (PFET) controllers for step-down (buck) current regulators. They offer wide input voltage range, high-side differential current sense with low adjustable threshold voltage and fast output enable/disable function and a thermally enhanced 10-pin, HVSSOP package. These features combine to make the LM3409 family of devices ideal for use as constant current sources for driving LEDs where forward currents up to 5 A are easily achievable.

The LM3409 devices use constant off-time (COFT) control to regulate an accurate constant current without the need for external control loop compensation. Analog and PWM dimming are easy to implement and result in a highly linear dimming range with excellent achievable contrast ratios. Programmable UVLO, low-power shutdown, and thermal shutdown complete the feature set.

INFORMATION

Drawing

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TOP Electronic Industry co., Ltd was established in 2006. After 10 years effort and development, now we have become one of the leading electronic components distributors in China. We keep very kind relationship with our suppliers and partners, and put our customers in the first place always.

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Our Strong in Brand including Microchip, MAX, AD, TI, NXP, ATMEL, ST, ON, NS, Intersil, Winbond, Vishay, ISSI, Infineon, NEC, FAIRCHILD, OMRON,YAGEO, TDK, etc

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