BD7710GWL-E2

Overview

The BD7710GWL-E2 is a three-channel LED camera flash driver IC manufactured by ROHM Semiconductor. It utilizes a boost topology to drive LEDs with a maximum output current of 1.5 A per channel. The device operates within an input voltage range of 2.7 V to 5.5 V and supports a switching frequency of 2 MHz. It features I2C interface control for configuration and monitoring. The component is housed in a UCSP-20 package and functions within a temperature range of -40°C to +85°C, with a maximum power dissipation of 820 mW.

Feature Summary

• Three independent output channels designed for high-current LED driving applications
• Integrated I2C interface for digital control and status monitoring
• Built-in boost converter topology for efficient voltage step-up
• Compact UCSP-20 surface-mount package suitable for space-constrained designs

Applications

• Smartphone camera flash systems
• Mobile device illumination circuits
• Portable electronic camera modules

Procurement Notes

Verify the current lifecycle status before integration, as this part may be classified as Not Recommended for New Designs or End-of-Life. Confirm availability through authorized distributors, noting that supply may be restricted or limited. Ensure the specific suffix matches the required revision level for your design. Cross-reference pinouts and electrical characteristics against the latest official datasheet to avoid compatibility issues with existing schematics.

Selection Notes

Select this component when designing compact LED drivers requiring high peak current capability from a single-cell battery source. The integrated boost converter simplifies the bill of materials by eliminating external inductors typically needed for higher voltage requirements. The I2C interface allows for precise brightness control and fault detection. Consider the UCSP-20 package size constraints during PCB layout to ensure adequate thermal performance and signal integrity.

Part Context

This IC belongs to ROHM's series of specialized LED lighting drivers tailored for mobile consumer electronics. It addresses the need for bright, fast-response flash illumination in slim smartphone form factors. The design integrates power switches and control logic to minimize external component count. It represents a solution for optimizing board space while maintaining high-performance lighting capabilities in portable devices.

Replacement Considerations

Check for direct substitutes within the BD7710 family or newer generations from ROHM. Verify if alternative manufacturers offer compatible pin-to-pin replacements with similar current ratings and I2C interfaces. Ensure any replacement maintains the same UCSP-20 footprint and electrical specifications to avoid redesigning the PCB.

FAQ

What is the maximum output current per channel?

The BD7710GWL-E2 supports a maximum output current of 1.5 A per channel.

How is the device controlled?

The IC uses an I2C serial interface for configuration, monitoring, and control functions.

What is the operating input voltage range?

The device operates with an input voltage ranging from 2.7 V to 5.5 V.