Datasheet > AS1113_1

AS1113_1

更新时间： 2022-12-27 17:49:41

品牌	Logo	应用领域
艾迈斯 - AMSCO		驱动器
页数	文件大小	规格书
24页	996K
描述
50mA, 16-Channel LED Driver with Diagnostics

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Datasheet

AS1113

50mA, 16-Channel LED Driver with Diagnostics

1 General Description

2 Key Features

ꢀ

16 Constant-Current Output Channels

The AS1113 is designed to drive up to 16 LEDs through

a fast serial interface and features 16 output constant

current drivers and an on-chip diagnostic read-back

function.

ꢀ

Excellent Output Current Accuracy

- Between Channels: <±3%

- Between Devices: <±6%

The high clock-frequency (up to 50MHz), adjustable out-

put current, and flexible serial interface makes the

device perfectly suited for high-volume transmission

applications.

ꢀ

Output Current Per Channel: 0.5 to 50mA

Controlled In-Rush Current

Over-Temperature, Open-LED, Shorted-LED

Diagnostic Functions

Output current is adjustable (up to 50mA/channel) using

an external resistor (REXT).

The serial interface with Schmitt trigger inputs includes

an integrated shift register. Additionally, an internal data

ꢀ

Low-Current Test Mode

Global Fault Monitoring

The device features integrated diagnostics for over-

temperature, open-LED, and shorted-LED conditions.

Integrated registers store global fault status information

during load as well as the detailed temperature/open-

LED/shorted-LED diagnostics results.

Low Shutdown Mode Current: 10µA

Fast Serial Interface: 50MHz

Cascaded Configuration

Extremely Fast Output Drivers Suitable for PWM

24-pin SSOP and 28-pin QFN (5x5mm) Package

The AS1113 also features a low-current diagnostic

mode to minimize display flicker during fault testing.

The AS1113 is available in a 24-pin SSOP and the 28-

pin QFN (5x5mm) package.

3 Applications

If a higher output current is needed, please see the

AS1110 with 100mA drive capability.

The device is ideal for fixed- or slow-rolling displays

using static or multiplexed LED matrix and dimming

functions, large LED matrix displays, mixed LED display

and switch monitoring, displays in elevators, public

transports (underground, trains, buses, taxis, airplanes,

etc.), large displays in stadiums and public areas, price

indicators in retail stores, promotional panels, bar-graph

displays, industrial controller displays, white good pan-

els, emergency light indicators, and traffic signs.

Figure 1. Main Diagram and Pin Assignments

+VLED

AS1113

SDI

SDO

CLK

OEN

REXT

VDD

GND

www.austriamicrosystems.com

Revision 1.03

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