LM3429Q1MH

• LM3429Q1 is automotive-grade and AEC - Q100 qualified (-40°C to +125°C operating junction temperature)
• From 4.5V to 75V range V
• Adjustable current sense voltage
• High-side current detection
• 2Ω, 1A peak MOSFET gate driver
• Input undervoltage protection
• Overvoltage protection
• PWM dimming
• Analog dimming
• Cycle-by-cycle current limit
• Programmable switching frequency
• Thermal shutdown

illustrate

The LM3429 is a versatile LED driver controller for high-voltage N-channel MOSFETs. It can be easily configured in buck, boost, buck-boost and SEPIC topologies. This flexibility, along with a 75V rated input voltage, makes the LM3429 illuminated LEDs ideal for the application of LEDs in a very diverse family.

The adjustable high-side current detection voltage allows the tightly regulated LED current to be as efficient as possible. The LM3429 features Predictive Shutdown Time (Professional) control, a combination of peak current mode control and predictive shutdown timer. This control approach simplifies loop compensation design while providing inherent input voltage feedforward compensation.

The LM3429 includes a high-voltage start-up regulator that exceeds a wide input voltage range of 4.5V to 75V. The design of the internal PWM controller with adjustable switching frequency up to 2.0 MHz makes for a compact solution. Other features include dimming for simulated PWM dimming, overvoltage protection, undervoltage lockout, cycle-by-cycle current limiting, and thermal shutdown.

The LM3429 comes in an EP 14-pin package in a low-profile, high-efficiency thermal TSSOP package.

LM3429Q1 is an automotive-grade product and is AEC-Q100 standard Level 1 qualified

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• LED driver - buck, boost, buck - boost, SEPIC
• Indoor and outdoor SSL
• Car
• Normal lighting
• Constant current regulator