The LP5523 is a 9-channel LED driver designed to produce lighting effects for mobile devices. A high-efficiency charge pump enables LED driving over full Li-Ion battery voltage range. The device is equipped with an internal program memory, which allows operation without processor control.
The LP5523 maintains excellent efficiency over a wide operating range by autonomously selecting the best charge-pump gain based on LED forward voltage requirements. The LP5523 is able to automatically enter power-save mode when LED outputs are not active, thus lowering idle current consumption down to 10 µA (typical).
The LP5523 has an I2C-compatible control interface with four pin selectable addresses. The device has a flexible general purpose output (GPO), which can be used as a digital control pin for other devices. INT pin can be used to notify processor when a lighting sequence has ended (interrupt function). Also, the device has a trigger input interface, which allows synchronization, for example, between multiple LP5523 devices.
The device requires only four small, low-cost ceramic capacitors. The LP5523 is available in a tiny 25-pin DSBGA package (0.4-mm pitch).
For all available packages, see the orderable addendum at the end of the data sheet.| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | LP5523 Nine-Channel RGB- and White-LED Driver With Internal Program Memory and Integrated Charge Pump – DSBGA Package datasheet (Rev. E) | PDF | HTML | Jan 24, 2017 |
| White paper | Common LED Functions and LED Driver Design Considerations | Sep 21, 2020 | ||
| Application note | How to Select a RGB LED Driver | Aug 8, 2019 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | Jun 25, 2018 | ||
| Application note | LP5523 Evaluation Kit (Rev. E) | Dec 9, 2015 |
For additional terms or required resources, click any title below to view the detail page where available.
The LP5523 is a fully integrated lighting management unit for producing lighting effects for mobile devices. The LP5523 includes all necessary power management, high-side current sources, temperature compensation, two wire (I2C compatible) control interface and programmable pattern generators. The (...)
The Linux driver supports the LP5523 series of LED Drivers. The Linux driver supports communication through the I2C bus and interfaces with the LED sub-system.
Available in Linux Main line: Yes
Available through git.ti.com: N/A
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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| DSBGA (YFQ) | 25 | Ultra Librarian |
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