LED DRVR 5Segment 3.3V/5V 30-Pin Micro SMD T/R

The LP5527 is a lighting management unit for handheld devices with I2C compatible control interface. The LP5527 has a step-up DC-DC converter with high current output, and it drives display and keypad backlights and powers the camera flash LED. In addition, the DC-DC converter has the output current to power, for example, an audio amplifier simultaneously. The chip has four 8-bit programmable high-efficiency constant-current LED drivers and a flash LED driver. Built-in audio synchronization feature allows the user to synchronize one of the LEDs to audio input. The LP5527 has an integrated 400-mA flash driver with a safety stop feature and 50-mA torch mode. An external enable pin is provided for synchronizing the flash with the camera action. An external software-independent test interface provides a fast way to find a broken path or short on LED circuits. Very small DSBGA package together with minimum number of external components is a best fit for handheld devices. 

High Current Boost DC-DC Converter (up to 1-A Output Current)

Programmable Boost Output Voltage

400-mA Flash LED Constant-Current Driver With Low Tolerance and Safety Circuit

Synchronization Pin for Flash Timing

Two Single-Ended Audio Inputs With Gain Control

Four Constant-Current 15-mA LED Drivers With 8-Bit Programmable Brightness Control

Audio Synchronization Feature

I²C-Compatible Control Interface

Built-in LED Connectivity Test to Maximize Manufacturing Yield

Small DSBGA-30 Package (2.5 mm x 3.0 mm x 0.6 mm)