LP5891
- Separated VCC and VR/G/B power supply
- VCC voltage range: 2.5 V–5.5 V
- VR/G/B voltage range: 2.5 V–5.5 V
- 48 current source channels from 0.2 mA to 20 mA
- Channel-to-channel accuracy: ±0.5% (typ.), ±2% (max.); device-to-device accuracy: ±0.5% (typ.), ±2% (max.)
- Low knee voltage: 0.26 V (max.) when IOUT = 5 mA
- 3-bits (8 steps) global brightness control
- 8-bits (256 steps) color brightness control
- Maximum 16-bits (65536 steps) PWM grayscale control
- 16 scan line switches with 190-mΩ RDS(ON)
- Ultra-low power consumption
- Independent VCC down to 2.5 V
- Lowest ICC down to 3.6 mA with 50-MHz GCLK
- Intelligent power saving mode with ICC down to 0.9 mA
- Built-in SRAM to support 1–64 multiplexing
- Single device to support 48 × 16 LEDs or 16 × 16 RGB pixels
- Dual devices stackable to support 96 × 32 LEDs or 32 × 32 RGB pixels
- Three devices stackable to support 144 × 48 LEDs or 48 × 48 RGB pixels
- Four devices stackable to support 192 × 64 LEDs or 64 × 64 RGB pixels
- High speed and low EMI Continuous Clock Series Interface (CCSI)
- Only three wires: SCLK / SIN / SOUT
- External 50-MHz (max.) SCLK with rising-edge transmission mechanism
- Internal frequency multiplier to support high frequency GCLK
- Optimized performances for LED matrix displays
- Upside and downside ghosting removal
- Low grayscale enhancement
- LED open, weak-short, short detection and removal
- LP5891MRRFR supports –55°C to approximately 125°C operating ambient temperature
The LP5891 is a highly integrated, common-cathode LED matrix driver with 48 constant current sources and 16 scanning FETs. The LP5891 implements a high speed rising-edge transmission interface to support high device count daisy-chained while minimizing electrical-magnetic interference (EMI) and internal GCLK rate ranges from 40 MHz to 160 MHz. The device also implements LED open/weak-short/short detections and removals during operations.
기술 자료
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4개 모두 보기
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | LP5891 48 Current Sources, 64 Scans, Common Cathode LED Matrix Driver datasheet (Rev. A) | PDF | HTML | 2022. 5. 5 | |
| 사용 설명서 | LP589x(-Q1)/TLC698x Sample Code User's Guide (Rev. A) | PDF | HTML | 2024. 9. 6 | ||
| 애플리케이션 노트 | Example of LED Display Screen Design Requirements Based on TLC6983 | PDF | HTML | 2023. 7. 31 | ||
| 인증서 | LP5891EVM EU RoHS Declaration of Conformity (DoC) | 2022. 9. 20 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
평가 보드
LP5891EVM — 48×16 공통 음극 매트릭스 LED 디스플레이 드라이버용 LP5891 평가 모듈
LP5891 EVM(평가 모듈)은 매트릭스 LED 디스플레이 드라이버 LP5891의 특성, 작동 및 사용량을 평가하는 데 사용됩니다. LP5891은 정전류 소스 48개와 스캐닝 FET 16개가 포함된 고집적 공통 음극 매트릭스 LED 디스플레이 드라이버입니다.
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애플리케이션 소프트웨어 및 프레임워크
LP5891Q1EVM-SW-F280039C — Reference code for LP5891-Q1 EVM based on TMS320F280039C (LAUNCHXL-F280039C)
This reference code showcases the ability of the TMS320F280039C device to communicate with the LP5891-Q1 LED driver. The code configures the MCU using CLB to drive a 16x16 RGB LED matrix which is available on the LP5891Q1EVM.
애플리케이션 소프트웨어 및 프레임워크
LP5899DYYEVM-LP5891-F280039C-SW — LP5899 reference code pairing with LP5891(-Q1) based on TMS320F280039C (LAUNCHXL-F280039C)
This reference code showcases the ability of the TMS320F280039C device to communicate with the LP5899(-Q1) paired with LP5891(-Q1) LED driver. The code configures the MCU using SPI to drive the LEDs on the LP5891(Q1)EVM.
계산 툴
SLDR007 — LP5891 Registers Map Generator
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| VQFN (RRF) | 76 | Ultra Librarian |
| NFBGA (ZXL) | 96 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.