MAX1554ETA

LED Driver IC Overview

The MAX1554ETA is a high-efficiency, 40V step-up converter designed for driving white LEDs in series. It operates with an input voltage range of 3.15 V to 5.5 V and delivers a maximum output current of 970 mA. The device supports a switching frequency between 100 Hz and 10 kHz and provides a regulated output voltage up to 40 V. It features constant current regulation and accepts analog or PWM dimming signals. The component is housed in an 8-pin TDFN package and functions within a temperature range of -40°C to +85°C.

LED Driver IC Feature Summary

• Provides constant current drive for series-connected white LEDs
• Supports both analog and pulse-width modulation dimming control
• Integrates a high-efficiency boost converter topology

LED Driver IC Applications

• Display backlighting for cellular phones
• Display backlighting for PDAs
• Indicator lighting systems

LED Driver IC Procurement Notes

Verify the specific suffix '+T' indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the supply chain source provides valid traceability for this Analog Devices product line.

LED Driver IC Selection Notes

Select this component when designing circuits requiring a single-channel boost driver for 2 to 10 series white LEDs. Consider the 970 mA switch current limit and 40V output capability against load requirements. Evaluate the TDFN-8 package for thermal management needs within the specified operating temperature range.

LED Driver IC Part Context

This part belongs to the MAX1553/MAX1554 family of LED drivers from Maxim Integrated. These devices are optimized for portable electronics where space and efficiency are critical constraints. The family focuses on providing stable illumination for display backlights using minimal external components.

LED Driver IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.