MAX1582YETC

LED Driver IC Overview

The MAX1582YETC is a high-efficiency step-up DC-DC converter designed for driving white LEDs in series. It operates with an input voltage range of 2.6V to 5.5V and features a built-in 30V N-channel MOSFET switch. The device utilizes a 1MHz current-mode PWM control structure, enabling the use of small external components. It provides constant current drive for up to six series-connected LEDs, supporting dual-display backlighting applications. Key electrical parameters include a switching frequency of 1MHz, a maximum output current of 650mA, and an operating temperature range from -40°C to +85°C.

LED Driver IC Feature Summary

• Integrates a 30V low RDSON N-channel MOSFET switch for high efficiency and extended battery life
• Supports analog or digital PWM dimming with frequencies ranging from 200Hz to 200kHz
• Includes integrated overvoltage protection circuitry eliminating the need for external Zener diodes
• Features soft-start functionality to eliminate startup surge currents

LED Driver IC Applications

• Backlighting for main displays in cellular phones
• Backlighting for sub-displays in handheld devices
• Dual-display backlight driver systems
• White LED driver circuits for portable electronics

LED Driver IC Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm package integrity upon receipt. Check datasheet revisions for specific ordering suffixes. Ensure storage conditions comply with manufacturer guidelines. Validate pinout compatibility before PCB integration.

LED Driver IC Selection Notes

Evaluate input voltage requirements against the 2.6V to 5.5V operational range. Consider the 1MHz switching frequency for inductor size optimization. Assess thermal management needs within the -40°C to +85°C temperature limits. Determine if analog or digital dimming interfaces are required by the system design.

LED Driver IC Part Context

This component belongs to the Maxim Integrated line of power management ICs, now part of Analog Devices Inc. It is specifically engineered for portable consumer electronics requiring efficient LED illumination. The device replaces discrete boost converter solutions with an integrated approach.

LED Driver IC Replacement Considerations

Direct substitutes may include other Maxim/Analog Devices white LED drivers such as the MAX1582 or MAX1582Y variants. Verify pin-to-pin compatibility and electrical specifications before substitution.