TLC6984集成電路（IC）的LED驅(qū)動器規(guī)格書PDF中文資料

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

0.9mA

? Built-in SRAM to support 1 – 64 multiplexing

– Single device with 16 multiplexing to support 48

× 16 LEDs or 16 × 16 RGB pixels

– Dual devices stackable with 32 multiplexing to

support 96 × 32 LEDs or 32 × 32 RGB pixels

– Three devices stackable with 48 multiplexing to

support 144 × 48 LEDs or 48 × 48 RGB pixels

– Four devices stackable with 64 multiplexing 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 25-MHz (max.) SCLK with dual-edge

transmission mechanism (internal 50 MHz)

– Internal frequency multiplier to support high

GCLK frequency

? Optimized display performance

– Programmable scan line sequence

– Upside and downside ghosting removal

– Low grayscale enhancement

– LED open, short, and weak short detection and

removal

2 Applications

? Narrow Pixel Pitch (NPP) LED display

? Mini and micro-LED products

3 Description

With the pixel density getting higher in narrow pixel

pitch LED display or mini and micro-LED products,

there are urgent demands for LED drivers to address

those critical challenges. These challenges include

ultra high integration to meet the strict board space

limitation, ultra low power to minimize the system

level power dissipation, new interface to enable high

data refresh rate with low EMI impact, and excellent

display performance to serve the growing needs of

higher display quality.