LP5891 Overview
The LP5891 is a highly integrated, mon-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...
LP5891 Key Features
- 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
- 16 scan line switches with 190-mΩ RDS(ON)