LM3409HVMYX

The LM3409HVMYX is a high-voltage, constant-current buck regulator IC designed for driving LEDs efficiently. Key features include:
- Input Voltage Range: 6V to 75V, suitable for automotive and industrial applications.
- Constant Current Output: Adjustable via an external resistor for precise LED current control.
- PWM Dimming: Supports high-frequency dimming for brightness control.
- Efficiency: Uses a buck topology with low-side current sensing for high efficiency.
- Protections: Includes thermal shutdown, open-LED detection, and cycle-by-cycle current limiting.
Ideal for LED lighting, signage, and display applications, the LM3409HVMYX integrates critical functions while minimizing external components. Its compact HTSSOP-14 package ensures space-efficient designs.
For detailed specs, refer to the [TI datasheet](https://www.ti.com/product/LM3409).

The LM3409HVMYX is a buck controller IC. Equivalent or similar products include:
- LM3409 (same family, different package)
- LM3404 (similar buck controller)
- TPS40210 (TI alternative)
- LT1937 (Analog Devices equivalent)
- AP5101B (Diodes Inc. alternative)
Check datasheets for exact compatibility in your application.

The LM3409HVMYX is a buck controller IC with these key features:
- Input Voltage Range: 4.5V to 75V (supports high-voltage applications).
- Adjustable Output Current: Up to 5A (with external FETs).
- Constant Current (CC) & Constant Voltage (CV) Control: Ideal for LED drivers and power supplies.
- PWM Dimming: Supports high-frequency dimming for LEDs.
- Efficiency Optimization: Uses emulated current-mode control for stable performance.
- Adjustable Switching Frequency: Up to 1MHz (reduces external component size).
- Protections: Thermal shutdown, UVLO, and cycle-by-cycle current limiting.
- Package: 14-pin HTSSOP (thermally enhanced).
Compact and versatile, it’s suited for LED lighting, industrial, and automotive applications.

The LM3409HVMYX is a 14-pin buck LED driver IC in a HTSSOP-14 package. Key functions include:
- PWM Dimming (Pin 5: DIM)
- Analog Dimming (Pin 4: IADJ)
- Current Sensing (Pin 6: CS)
- Switching Node (Pin 11: SW)
- Enable/Shutdown (Pin 3: EN)
- Input Voltage (Pin 14: VIN)
- Ground (Pins 1, 2, 7, 8, 9, 10)
It features constant off-time (COT) control, thermal shutdown, and overcurrent protection, making it suitable for high-power LED driving.

The LM3409HVMYX comes in a PowerPAD HTSSOP-16 package. This surface-mount package features a thermally enhanced design with an exposed pad for improved heat dissipation, making it suitable for high-power applications. The compact 16-pin form factor is ideal for space-constrained designs.