LP5890
- 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–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 3.9 mA with 50-MHz GCLK
- Intelligent power saving mode
- Built-in SRAM to support 1 - 32 multiplexing,
- Single device drives up to 16 × 48 LEDs or 16 × 16 RGB LEDs
- Dual devices stackable drive up to 32 × 96 LEDs or 32 × 32 RGB LEDs
- High speed and low EMI Continuous Clock Series Interface (CCSI)
- Only three wires: SCLK/SIN/SOUT
- External 50-MHz (max.) SCLK
- Internal frequency multiplier to support GCLK range from 40 MHz–160 MHz
- Optimized display performance
- Upside and downside ghosting removal
- Low grayscale enhancement
- LED open, short, and weak short detection and removal
Electronic devices are becoming smarter, requiring to use larger quantity of LEDs for animation and indication purposes and high performance LED matrix driver is required to improve user experience with small solution size.
The LP5890 is a highly integrated common cathode matrix LED display driver with 48 constant current sources and 16 scanning FETs. A single LP5890 is capable of driving 16 × 16 RGB LED pixels while stacking two LP5890s can drive 32 × 32 RGB LED pixels. To achieve low power consumption, the device supports separated power supplies for the red, green, and blue LEDs by its common cathode structure. Furthermore, the operation power of the LP5890 is significantly reduced by ultra-low operation voltage range (Vcc down to 2.5 V) and ultra-low operation current (Icc down to 3.9 mA).
The LP5890 implements a high speed transmission interface to support high device count daisy-chained and high refresh rate while minimizing electrical-magnetic interference (EMI). The device supports up to 50-MHz SCLK and up to 160-MHz GCLK (internal). Meanwhile, the device integrates enhanced circuits and intelligent algorithms to solve the various display challenges in multiple LED matrix applications: Upper and downside ghosting, Non-uniformity in low grayscale, Coupling, and Caterpillar caused by open or short LEDs, which make the LP5890 a perfect choice in such applications.
The LP5890 also implements LED open/weak short/short detections and removals during operations and can also report this information to the accompanying digital processor.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LP5890 16 × 48 LED Matrix Driver With Ultra-low Power datasheet | PDF | HTML | 2021年 7月 27日 |
| Application note | Example of LED Display Screen Design Requirements Based on TLC6983 | PDF | HTML | 2023年 7月 31日 | |
| EVM User's guide | LP5890 48x16 Common Cathode Matrix LED Display Driver Evaluation Module | PDF | HTML | 2022年 11月 30日 | |
| Certificate | LP5890EVM EU RoHS Declaration of Conformity (DoC) | 2022年 9月 19日 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
| 封裝 | 引腳 | 下載 |
|---|---|---|
| NFBGA (ZXL) | 96 | 檢視選項 |
| VQFN (RRF) | 76 | 檢視選項 |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。