LP3936SLX

LED Driver IC Overview

The LP3936SLX is a lighting management system IC designed for six white LEDs and one RGB or flash LED. It operates as a DC-DC boost regulator with an internal switch, supporting PWM dimming at a 1MHz frequency. The device provides a regulated output voltage of 5.3V and accepts a supply voltage range between 2.65V and 2.9V. It features 12 outputs and includes a 25mA channel plus a 120mA flash channel. Packaged in a 32-TLGA (5.5x4.5) surface-mount format, it functions within a temperature range of -40°C to +85°C.

LED Driver IC Feature Summary

• Integrated lighting management system for multi-channel LED arrays
• Built-in DC-DC boost converter with internal switching element
• Supports programmable color, intensity, and blinking patterns via MicroWire/SPI and I2C interfaces

LED Driver IC Applications

• Mobile phone backlighting
• Camera flash illumination
• General LED lighting systems

LED Driver IC Procurement Notes

Verify component authenticity through authorized channels due to obsolete status. Confirm package integrity and pin alignment against the 32-TLGA specification. Check datasheet revisions for interface compatibility. Ensure thermal management aligns with the specified operating range. Validate substitute options if original supply is unavailable.

LED Driver IC Selection Notes

Evaluate input voltage constraints against the 2.65V to 2.9V requirement. Assess current demands for the 120mA flash channel versus standard operation. Consider interface compatibility with existing control logic for SPI/I2C integration. Review thermal dissipation capabilities within the TLGA package. Compare performance against newer Texas Instruments alternatives for long-term design viability.

LED Driver IC Part Context

This component belongs to the LP3936 series from Texas Instruments, focusing on integrated power management for portable electronics. It combines regulation and driving functions into a single solution. The series targets applications requiring precise LED control and efficient power usage in compact form factors.

LED Driver IC Replacement Considerations

Public confirmed substitutes include parametric equivalents listed by distributors. Verify electrical parameters and pinout compatibility before substitution.