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LP5569
- Supply Voltage Range: 2.5 V–5.5 V
- Nine High-Accuracy Current Sinks
- 25.5 mA Maximum per Channel
- 8-Bit Individual Current Control
- 12-Bit 20-kHz Internal Individual PWM Control Without Audio Noise
- Three Programmable LED Engines
- Flexible Dimming Control
- I2C Dimming Control
- PWM Direct-Input Dimming
- PWM Input Frequency: 100-Hz to 20-kHz
- Adaptive High-Efficiency Charge-Pump Control for Driving High-VF LEDs With Low Battery Voltage
- Master Fader Control Allows Dimming of Multiple LEDs by Writing to Only One Register to Reduce the I2C Bus Traffic
- 2-µA Low Standby Current and 10-µA in Automatic Power-Save Mode When LEDs Are Inactive
- POR, UVLO, and TSD Protection
The LP5569 device is a programmable, easy-to-use 9-channel I2C LED driver designed to produce lighting effects for various applications. The LED driver is equipped with an internal SRAM memory for user-programmed sequences and three programmable LED engines, which allow operation without processor control. Autonomous operation reduces system power consumption when the processor is put in sleep mode.
A high-efficiency charge pump enables the driving of LEDs with high VF, even with 2.5-V input voltage. The LP5569 LED driver maintains good efficiency over a wide operational voltage range by autonomously selecting the best charge-pump gain based on LED forward voltage requirements.
The LP5569 device enters power-save mode when LEDs are not active, lowering idle-current consumption considerably. A flexible digital interface allows the connection of up to eight LP5569 devices with a unique I2C slave address for each device in the same system, which supports synchronization of the lighting effects among all devices.
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | LP5569 Nine-Channel I2C RGB LED Driver With Engine Control and Charge Pump datasheet (Rev. A) | PDF | HTML | 10 Sep 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 | ||
Technical article | Adding imagination to your next-generation appliances | PDF | HTML | 12 Nov 2018 | |
Technical article | Why you need a programmable lighting engine when designing LED driver circuit | PDF | HTML | 29 May 2018 | |
Application note | LP5569 Lighting Pattern Design | 08 May 2018 | ||
Technical article | Improve the user experience with an LED ring | PDF | HTML | 09 Nov 2017 | |
EVM User's guide | LP5569EVM User's Guide (Rev. A) | 29 Aug 2017 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
BOOST-LP5569EVM — LP5569 Nine-Channel I2C RGB LED Driver With Engine Control and Charge Pump Evaluation Module
LP5569 Unencrypted PSpice Transient Model Package (Rev. C)
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TIDA-01559 — Capacitive Touch Based User Interface with Proximity Sensing and LED Animation Reference Design
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
WQFN (RTW) | 24 | Ultra Librarian |
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