LP5030
- Operating Voltage Range:
- VCC Range: 2.7 V to 5.5 V
- EN, SDA, and SCL Pins Compatible With 1.8-V, 3.3-V, and 5-V Power Rails
- Output Maximum Voltage: 6 V
- 36 Constant-Current Sinks With High Precision
- 25.5 mA Maximum per Channel When VCC in Full Range
- 35 mA Maximum per Channel When VCC ≥ 3.3 V
- Device-to-Device Error ±5%; Channel-to-Channel Error ±5%
- Ultralow Quiescent Current:
- Shutdown Mode: 1 µA (Maximum) When EN Low
- Power Saving Mode: 12 µA (Maximum) When EN High and All LEDs Off for > 30 ms
- Integrated 12-Bit, 29-kHz PWM Generator for Each Channel:
- Independent Color-Mixing Register Per Channel
- Independent Brightness-Control Register Per RGB LED Module
- Optional Logarithmic- or Linear-Scale Brightness Control
- Integrated 3-Phase-Shifting PWM Scheme
- 3 Programmable Banks (R, G, B) for Easy Software Control of Each Color
- 2 External Hardware Address Pins Allow Connecting up to 4 Devices
- Broadcast Slave Address Allows Configuring Multiple Devices Simultaneously
- Auto-Increment Allows Writing or Reading Consecutive Registers Within One Transmission
- Up to 400-kHz Fast-Mode I2C Speed
Efficient and high-performance LED response effects, such as blinking, breathing, and chasing, are critical to improving end-user experience in many human machine interface (HMI) applications.
The LP503x device is a 30- or 36-channel constant-current-sink LED driver. The LP503x has a 29 kHz, 12-Bit PWM generator for each channel, as well as channel/module independent color mixing and intensity control, formerly called brightness control registers to enable vivid LED effects with zero audible noise. Users can benefit from the device’s ultra-low shutdown Iq Power Saving Mode, while designers will appreciate the incredibly straightforward software coding of the LP503x’s three programmable R G B banks.
The LP503x device controls each LED output with a 12-bit PWM resolution at 29-kHz switching frequency. This control helps get an intensity that decreases smoothly and stops audible noise. Having different color-mixing and intensity-control registers makes writing the software code straightforward. When targeting fade-in, fade-out type breathing effects, the global R, G, B bank control reduces the microcontroller loading significantly. The LP503x device also implements a PWM phase-shifting function to help reduce the input power budget when LEDs turn on simultaneously.
The LP503x device has an automatic power-saving mode to get the ultra-low quiescent current. When channels are all off for 30 ms, the device total power consumption is down to 10 µA, making the LP503x device a possible alternative for battery-powered end equipment.
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | LP503x 36-, 30-Channel 12-Bit PWM Ultra-low Quiescent Current I2C RGB LED Drivers datasheet (Rev. B) | PDF | HTML | 2019/01/21 |
White paper | Common LED Functions and LED Driver Design Considerations | 2020/09/21 | ||
Application note | System Design Guidelines for Full-Color RGB LED Matrix Based on LP50xx Device | 2020/04/08 | ||
Application note | How to Select a RGB LED Driver | 2019/08/08 | ||
White paper | 스마트 스피커 기본 사항: 설계 장단점 따져 보기 | 2019/02/08 | ||
Technical article | Using an RGBW LED driver to elevate LED human-machine interface designs | PDF | HTML | 2018/11/27 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
LP5036EVM — LP5030 및 LP5036에 적합한 LP5036EVM, 12비트 PWM 초저 정동작 전류 I2C RGB LED 드라이버 평가 모듈
Step 1: Order the hardware
Step 2: Download and install the LP50EVM user GUI and review the EVM users guide
- Our LP50EVM GUI is used with the LP50EVM to evaluate the features of the LP50xx device.
Step 3: If you plan to use a MCU based system software, please see this (...)
PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®
TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 (...)
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
VQFN (RJV) | 46 | 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
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.