BD60910GU-E2

Overview

The BD60910GU-E2 is a single-channel LED lighting driver IC manufactured by ROHM Semiconductor, designed for multi-backlight applications. It utilizes a boost switching regulator topology with an integrated internal switch and operates at a fixed frequency of 1 MHz. The device supports PWM dimming control and delivers a regulated output current of 25.6 mA per channel. It functions within a supply voltage range of 2.7 V to 5.5 V and is rated for an operating temperature range from -40°C to +85°C. The component is housed in a compact VCSP85H3 package (also referenced as WLCSP-36 or 24-VFBGA) and has a maximum power dissipation of 1.25 W.

Feature Summary

• Integrates a boost converter topology with an internal high-side switch for efficient LED driving.
• Supports precise PWM dimming control for backlight brightness adjustment.
• Features a compact wafer-level chip-scale package suitable for space-constrained designs.

Applications

• Multi-backlight LED systems
• Portable electronic display illumination
• General-purpose LED driver circuits

Procurement Notes

Verify the current lifecycle status before procurement, as this component is marked as NRND (Not Recommended for New Designs). Confirm that the specific VCSP85H3 package variant matches your PCB footprint requirements. Ensure compatibility with the 2.7 V to 5.5 V input voltage range for your target application. Check for available alternative components if long-term supply stability is required for new production runs.

Selection Notes

Select this IC when a single-channel boost driver with fixed 25.6 mA output current is sufficient for the load. It is appropriate for designs requiring PWM dimming rather than analog dimming. Consider the thermal constraints of the small VCSP85H3 package, as power dissipation is limited to 1.25 W. Verify that the system input voltage remains within the specified 2.7 V to 5.5 V window to ensure proper operation.

Part Context

This part belongs to the BD60910GU series of LED drivers from ROHM Semiconductor. It is categorized under specialized PMIC solutions for lighting applications. The device is distinct from other ROHM parts like the BD6046GUL-E2, which serves as a charger protection IC, or the BD6516F, which is a dual-channel MOSFET switch. This specific model focuses on constant current regulation for backlighting tasks.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the NRND status, direct replacements should be sourced through official ROHM channels or verified against updated datasheets for functional equivalence in boost topology and package dimensions.