Texas Instruments LP5890 Handleiding

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LP5890 16 × 48 LED Matrix Driver With Ultra-low Power

1 Features

•Separated V

CC

and V

R/G/B

power supply

–V

CC

voltage range: 2.5 V–5.5 V

–V

R/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 I

OUT

= 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 R

DS(ON)

•Ultra-low power consumption

–Independent V

CC

down to 2.5 V

–Lowest I

CC

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

2 Applications

•LED digital signage

•Keyboard, gaming accessories

•Major and smart home appliances

•Smart speaker, wired and wireless speaker

•Audio mixer, DJ equipment, and broadcast

•Access equipment, switches, and servers

3 Description

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).

Device Information

PART NUMBERPACKAGE

(1)

BODY SIZE (NOM)

LP5890

VQFN (76)9 mm × 9 mm

BGA (96)6 mm × 6 mm

(1)For all available packages, see the orderable addendum at

the end of the data sheet.

LP5890 With Single Device or Dual Devices Stackable Connection

LP5890

SLVSGD5 – JULY 2021

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

Product specificaties