LP5523
Controlador LED RGB/Blanco de 9 canales con memoria de programa interna y bomba de carga integrada:
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.Documentación técnica
Tipo | Título | Fecha | ||
---|---|---|---|---|
* | 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 ene 2017 |
White paper | Common LED Functions and LED Driver Design Considerations | 21 sep 2020 | ||
Application note | How to Select a RGB LED Driver | 08 ago 2019 | ||
Selection guide | Power Management Guide 2018 (Rev. R) | 25 jun 2018 | ||
Application note | LP5523 Evaluation Kit (Rev. E) | 09 dic 2015 | ||
Application note | AN-2227 LP5523 Evaluation Kit | 21 jun 2012 |
Diseño y desarrollo
Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.
LP5523EVM — Módulo de evaluación de controladores LED programables LP5523 de 9 salidas
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 — Controlador Linux para 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® para herramienta de diseño y simulación de TI
TIDA-050013 — Diseño de referencia de solución de animación LED RGB ultrapequeña para aplicaciones alimentadas por
Paquete | Pasadores | Descargar |
---|---|---|
DSBGA (YFQ) | 25 | Ver opciones |
Pedidos y calidad
- RoHS
- REACH
- Marcado del dispositivo
- Acabado de plomo/material de la bola
- Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
- Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
- Contenido del material
- Resumen de calificaciones
- Monitoreo continuo de confiabilidad
- Lugar de fabricación
- Lugar de ensamblaje
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Soporte y capacitación
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