LP5523
9-Kanal-LED-Treiber für RGB/weiße LEDs mit internem Programmspeicher und integriertem Ladungspumpe –
LP5523
- Three Independent Program Execution Engines, Nine Programmable Outputs with 25.5-mA Full-Scale Current, 8-Bit Current Setting Resolution, and 12-Bit PWM Control Resolution
- Adaptive High-Efficiency 1×/1.5× Fractional Charge Pump - Efficiency Up to 94%
- LED Drive Efficiency Up to 93%
- Charge Pump With Soft Start and Overcurrent and Short-Circuit Protection
- Built-in LED Test
- 200-nA Typical Standby Current
- Automatic Power-Save Mode
IVDD = 10 µA (Typical) - Two-Wire I2C-Compatible Control Interface
- Flexible Instruction Set
- Large SRAM Program Memory
- Small Application Circuit
- Source (High-Side) Drivers
- Architecture Supports Color Control
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.Technische Dokumentation
Typ | Titel | Datum | ||
---|---|---|---|---|
* | 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 | 24 Jan 2017 |
White paper | Common LED Functions and LED Driver Design Considerations | 21 Sep 2020 | ||
Application note | How to Select a RGB LED Driver | 08 Aug 2019 | ||
Selection guide | Power Management Guide 2018 (Rev. R) | 25 Jun 2018 | ||
Application note | LP5523 Evaluation Kit (Rev. E) | 09 Dez 2015 | ||
Application note | AN-2227 LP5523 Evaluation Kit | 21 Jun 2012 |
Design und Entwicklung
Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.
LP5523EVM — LP5523 – programmierbarer LED-Treiber mit 9 Ausgängen – Evaluierungsmodul
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 (...)
LP5523SW-LINUX — Linux-Treiber für LP5523
Linux Mainline Status
Available in Linux Main line: Yes
Available through git.ti.com: N/A
Supported Devices:
- lp5523
- lp55231
Linux Source Files
(...)
PSPICE-FOR-TI — PSpice® für TI Design-und Simulationstool
TIDA-050013 — Referenzdesign für ultrakompakte RGB-LED-Animationslösung für batteriebetriebene Anwendungen
Gehäuse | Pins | CAD-Symbole, Footprints und 3D-Modelle |
---|---|---|
DSBGA (YFQ) | 25 | Ultra Librarian |
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