LM3402MMX/NOPB

Overview

The LM3402MMX/NOPB is a high-voltage LED driver IC from Texas Instruments, designed for constant current buck topology applications. It features an internal power switch capable of delivering up to 500 mA output current. The device supports a wide input voltage range from 6 V to 75 V and offers adjustable switching frequencies between 10 kHz and 1 MHz. It operates within a junction temperature range of -40°C to +125°C and is housed in an 8-VSSOP package.

Feature Summary

• Integrates a high-side N-channel power switch for simplified circuit design
• Supports PWM dimming control for precise brightness adjustment
• Includes thermal shutdown protection for enhanced reliability

Applications

• General LED lighting systems
• Automotive interior lighting
• Portable battery-powered LED drivers

Procurement Notes

Verify the specific suffix 'X' against the manufacturer's official datasheet to confirm tape and reel packaging specifications. Ensure the component meets RoHS compliance standards as indicated by the NOPB designation. Cross-reference the exact part number with authorized distributors to confirm availability and authenticity before procurement.

Selection Notes

Select this component when designing non-isolated buck converters requiring high input voltages up to 75 V. It is suitable for applications needing integrated power switches and PWM dimming capabilities. Consider the 8-VSSOP package size for space-constrained designs. Verify that the required output current does not exceed the 500 mA limit under all operating conditions.

Part Context

This part belongs to the LM3402 family of LED drivers, which are widely used in various lighting applications. The LM3402 series is known for its simplicity and robustness in driving single or multiple LEDs in series. The HV variant supports higher input voltages, making it versatile for different power supply configurations.

Replacement Considerations

LM3402MM/NOPB is listed as a direct replacement option in public records.