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LP5891 - Common Cathode LED Matrix Driver

Description

The LP5891 is a highly integrated, common-cathode LED matrix driver with 48 constant current sources and 16 scanning FETs.

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.

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Full PDF Text Transcription

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LP5891 SLDS269A – MARCH 2022 – REVISED MAY 2022 LP5891 48 Current Sources, 64 Scans, Common Cathode LED Matrix Driver 1 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 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.
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