Datasheet > LED2472G

LED2472G

更新时间： 2024-09-17 01:13:19

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
39页	1566K
描述
24-channels LED driver with error detection and gain control

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LED2472G 数据手册

LED2472G

24-channels LED driver with error detection and gain control

Datasheet

production data

Description

The LED2472G is a monolithic, low voltage, low

current power 24-bit shift register designed for

LED panel displays with particular features

oriented to indoor and outdoor LED screen

billboards. The LED2472G guarantees 20 V of

output driving capability, allowing several LEDs to

be connected in series. The device is configured

in 3 groups (red, green and blue) of 8

74)3ꢀꢅꢂ(3

independently-controlled channels. The LED

current can be separately regulated for each color

within the range from 4 mA to 72 mA. This range

is divided into two sub-ranges and the current can

be adjusted within each range in 64 steps of

resolution (6 bits per color). A single external

resistor is required. All the controls and the shift

single 24-bit configuration register is used to

choose features and settings to fit the application.

The LED failure detection circuit checks 3

different conditions that can occur at the output

line: short to GND, short to LED power supply rail

or open channel. The auto power shutdown and

auto power-on feature (selectable) allows the

device to save power without any external

intervention. Thermal management includes

overtemperature flag and the output thermal

shutdown (170 °C). The high clock frequency of

up to 30 MHz makes the device suitable for high

data rate transmission. A selectable gradual

output delay reduces the inrush current. The

supply voltage ranges from 3 V and 5.5 V.

0/34ꢀꢁꢂ(3ꢃꢄ[ꢄ

Features

• 24 constant current output channels

• Output current: from 4 mA to 72 mA

• 8 x 3 independently controlled channels (RGB)

• Current programmable through external

resistor

• 7-bit global current gain adjustment in two

ranges

• Error detection mode (both open and shorted

LED)

• Programmable shorted LED detection

thresholds

• Auto power-saving / auto wakeup

• Gradual output delay (selectable)

• Supply voltage: 3 V to 5.5 V

Table 1. Device summary

• Thermal shutdown and thermal flag

• Up to 30 MHz CLK 4 wires interface

• 20 V current generators rated voltage

Order code

Package

Packaging

LED2472GBTR

TQFP48-EP

Tape and reel

LED2472GQTR MLPQ40-EP 5x5

Applications

• Full color large displays

• LED signage

• LED screens for indoor and outdoor billboards

April 2014

DocID024620 Rev 3

1/39

This is information on a product in full production.

www.st.com

12 3 4 5 6 7...39

中文翻译

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与LED2472G相关器件

型号	品牌	获取价格	描述	数据表
LED2472GBTR	STMICROELECTRONICS	获取价格	24-channels LED driver with error detection and gain control
LED2472GQTR	STMICROELECTRONICS	获取价格	24-channels LED driver with error detection and gain control
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