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DATA SHEET
LP5891-Q1 Automotive 48 Current Sources, 64 Scans, Common Cathode LED Matrix Driver
1 Features
- AEC-Q100-qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C,
TA
- 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: 0.27 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
2 Applications
- Automotive interior light
- Automotive rear light
- Automotive local dimming
backlight
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