LP5812
- Operating voltage range:
- VCC range: 2.7V to 5.5V
- Logic pins compatible with 1.8V, 3.3V, and 5V
-
Time-cross-multiplexing (TCM) topology:
- Drives up to 12 LEDs or 4 RGB LEDs
- ¼, ⅓, ½, 1 multiplexing ratio
- Supports direct, TCM, and mix-drive modes
- 4 constant current sinks with high precision:
- 0.1mA to 51mA per current sink
- Device-to-device error: max ±5%
- Channel-to-channel error: max ±5%
- Ultra-low headroom voltage: 110mV (typ.) at 25.5mA; 210mV (typ.) at 51mA
- PWM phase shift configurable for each LED
- Ultra-low power consumption:
- Standby: ISTB = 26µA (typical) when CHIP_EN = 0 (data retained)
- Active: INOR = 0.4mA (typical) when LED current = 25.5mA
- Analog dimming (current gain control)
- Global 1-bit Maximum Current (MC): 25.5mA or 51mA
- Individual 8-bit Dot Current (DC) setting
- PWM dimming up to audible-noise-free 24kHz
- Individual 8-bit PWM dimming resolution
- Linear or exponential dimming curves
- Autonomous animation engine control
- Individual LED dot open/short detection
- Integrated de-ghosting function
- 1MHz (max.) I2C interface
- –40°C to 85°C operating temperature range
The LP5812 is a 4 × 3 matrix RGB LED driver with autonomous animation engine control. The device has ultra-low normal operation current with 0.4mA (typical) when illuminate LEDs.
The time-cross-multiplexing (TCM) structure is adopted, which uses 4 output pins to control 12 LED dots individually. Both high-side scan switch and low-side current sink are contained in one output. The total solution size are minimized for space limited system.
The autonomous animation engine can significantly reduce the real-time loading of controller. Each LED can be configured through the related registers to realize vivid and fancy lighting effects. The device can generate 6MHz clock signal and use it for synchronizing the lighting effects among multiple devices.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | LP5812 4 × 3 Matrix RGB LED Driver with Autonomous Control datasheet (Rev. A) | PDF | HTML | 2024年 8月 8日 |
User guide | LP5812 Register Map | PDF | HTML | 2024年 10月 15日 | |
Certificate | LP5813-12WSONEVM EU Declaration of Conformity (DoC) | 2024年 2月 26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)。
LP5813-12WCSPEVM — 具自動控制功能且適用於 4 x 3 LED 矩陣驅動器的 LP5813/LP5812 評估模組
LP5813/12 評估模組展示 LP5813 和 LP5812 4 × 3 矩陣 RGB LED 驅動器的所有功能。兩個裝置之間的差別在於具有或未具有同步升壓功能。LP581x 圖形使用者介面 (GUI) 用於透過 USB2ANY 介接至 EVM。EVM 具有透過 USB2ANY 介面轉接器的 I2C 輸入。
LP5813-12WSONEVM — 適用於 WSON 封裝的 LP5813 和 LP5812 評估模組
LP5813 和 LP5812 評估模組 (EVM) 展示了具有自主控制功能的 LP5813 和 LP5812 4 × 3 矩陣 RGB LED 驅動器的所有功能。兩種產品之間的差別在於是否具有同步升壓功能。LP5813 和 LP5812 都位於在同一塊電路板上,請透過 USB2ANY 連接器和跳線設定選擇需要評估的產品。提供名為 LP581x GUI 的圖形使用者介面或 GUI,可透過 USB2ANY 介面轉接器將 USB 介接至 EVM。
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
DSBGA (YBH) | 9 | Ultra Librarian |
WSON (DSD) | 8 | Ultra Librarian |
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
- 認證摘要
- 進行中持續性的可靠性監測
- 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。