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.
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | LP5569 Nine-Channel I2C RGB LED Driver With Engine Control and Charge Pump datasheet (Rev. A) | PDF | HTML | 2017/09/10 |
| White paper | Common LED Functions and LED Driver Design Considerations | 2020/09/21 | ||
| Application note | How to Select a RGB LED Driver | 2019/08/08 | ||
| Technical article | Adding imagination to your next-generation appliances | PDF | HTML | 2018/11/12 | |
| Technical article | Why you need a programmable lighting engine when designing LED driver circuit | PDF | HTML | 2018/05/29 | |
| Application note | LP5569 Lighting Pattern Design | 2018/05/08 | ||
| Technical article | Improve the user experience with an LED ring | PDF | HTML | 2017/11/09 | |
| EVM User's guide | LP5569EVM User's Guide (Rev. A) | 2017/08/29 |
설계 및 개발
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LP5569 Unencrypted PSpice Transient Model Package (Rev. C)
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| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| WQFN (RTW) | 24 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
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